Articles | Volume 17, issue 5
https://doi.org/10.5194/cp-17-2073-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-17-2073-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Oct 2021
Research article |
| 13 Oct 2021
| 13 Oct 2021
Dating of the GV7 East Antarctic ice core by high-resolution chemical records and focus on the accumulation rate variability in the last millennium
Raffaello Nardin
Department of Chemistry “Ugo Schiff”, University of Florence,
Florence, Italy
Department of Chemistry “Ugo Schiff”, University of Florence,
Florence, Italy
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Alessandra Amore
Department of Chemistry “Ugo Schiff”, University of Florence,
Florence, Italy
Silvia Becagli
Department of Chemistry “Ugo Schiff”, University of Florence,
Florence, Italy
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Francois Burgay
Department of Environmental Sciences, Informatics and Statistics of
the Ca' Foscari University of Venice, Venice, Italy
Laboratory of Environmental Chemistry (LUC), Paul Scherrer Institut,
Villigen PSI, Switzerland
Laura Caiazzo
National Institute of Nuclear Physics (INFN), Florence, Italy
Virginia Ciardini
ENEA, Laboratory of Observations and Measures for the environment and
climate, Rome, Italy
Giuliano Dreossi
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Department of Environmental Sciences, Informatics and Statistics of
the Ca' Foscari University of Venice, Venice, Italy
Massimo Frezzotti
Department of Science, Geologic Sciences section, Roma 3 University,
Rome, Italy
Sang-Bum Hong
Division of Glacial Environmental Research, Korea Polar Research
Institute (KOPRI), Incheon, South Korea
Ishaq Khan
Department of Environmental Sciences, Informatics and Statistics of
the Ca' Foscari University of Venice, Venice, Italy
Bianca Maria Narcisi
ENEA, Laboratory of Observations and Measures for the environment and
climate, Rome, Italy
Marco Proposito
ENEA, Laboratory of Observations and Measures for the environment and
climate, Rome, Italy
Claudio Scarchilli
ENEA, Laboratory of Observations and Measures for the environment and
climate, Rome, Italy
Enricomaria Selmo
Department of Chemistry, Life Sciences and Environmental
Sustainability, University of Parma, Parma, Italy
Andrea Spolaor
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Department of Environmental Sciences, Informatics and Statistics of
the Ca' Foscari University of Venice, Venice, Italy
Barbara Stenni
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Department of Environmental Sciences, Informatics and Statistics of
the Ca' Foscari University of Venice, Venice, Italy
Rita Traversi
Department of Chemistry “Ugo Schiff”, University of Florence,
Florence, Italy
Institute of Polar Sciences of the National Research Council of Italy
(ISP-CNR), Venice, Italy
Related authors
No articles found.
Dorothea Elisabeth Baur, Andrea Spolaor, Federico Scoto, and Elizabeth R. Thomas
The Cryosphere, 20, 5533–5558, https://doi.org/10.5194/tc-20-5533-2026, https://doi.org/10.5194/tc-20-5533-2026, 2026
Short summary
Short summary
The Arctic is warming rapidly, and winter rain-on-snow events are becoming more common. These events can alter snow layers and disturb climate information stored in glaciers. We studied how small rain-on-snow events affect snow structure and water isotopes near Ny-Ålesund, Svalbard. Field experiments show that meltwater flow creates complex features, but isotope changes remain confined to them, meaning seasonal climate signals can still be preserved where enough snow accumulates.
Nunzio Romano, Harry Vereecken, Heye R. Bogena, Giorgio Cassiani, Matteo Censini, Giovanna Armiento, Marco Proposito, Lorenzo De Silvestri, Eyal Ben Dor, Nicolas Francos, Christian Massari, János Mészáros, Tünde Takáts, Caterina Mazzitelli, Benedetto Sica, Ugo Lazzaro, and Paolo Nasta
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-725, https://doi.org/10.5194/essd-2026-725, 2026
Preprint under review for ESSD
Short summary
Short summary
Understanding how climate and land-use change affect water resources requires observations that connect processes from soils and vegetation to groundwater and streams. The Alento dataset is presented that integrates environmental monitoring with targeted field observations across multiple Critical Zone components and scales. The dataset offers a distinctive resource for studying water storage and movement, evaluating environmental models, and improving understanding of water-limited regions.
François Burgay, Haley Derrod, Tobias Erhardt, Federico Scoto, Delia Segato, Niccolò Maffezzoli, Federico Dallo, Daniele Zannoni, Azzurra Spagnesi, Helle-Astrid Kjær, Hubertus Fischer, Cristiano Varin, Carlo Barbante, and Andrea Spolaor
Clim. Past, 22, 1675–1689, https://doi.org/10.5194/cp-22-1675-2026, https://doi.org/10.5194/cp-22-1675-2026, 2026
Short summary
Short summary
Ice-core measurements from Greenland suggest that atmospheric iron deposition played a smaller role than previously thought in regulating marine productivity in the iron-limited North Pacific. Despite a strong increase in total iron deposition, the fraction of iron more likely to be available to phytoplankton rose only modestly, pointing to sea-ice extent and sedimentary iron remobilization as potentially more important factors during the last glacial transition.
Alexander Mattin, Simon J. Barker, V. Holly L. Winton, Andrea Burke, William Hutchison, Patrick J. Sugden, Kirstin Krüger, Alexa R. Van Eaton, Larry G. Mastin, Michael Sigl, Eric W. Wolff, Shuji Fujita, Kumiko Goto-Azuma, Ikumi Oyabu, Motohiro Hirabayashi, Anders Svensson, Magali Verkerk, Colin J. N. Wilson, Stephen B. Piva, Nels A. Iverson, Nelia W. Dunbar, Helle A. Kjær, Nancy A. N. Bertler, Mirko Severi, Andrei V. Kurbatov, and Dominic A. Winski
EGUsphere, https://doi.org/10.5194/egusphere-2026-3434, https://doi.org/10.5194/egusphere-2026-3434, 2026
This preprint is open for discussion and under review for Climate of the Past (CP).
Short summary
Short summary
This study presents evidence of the ~25.3 Ōruanui supereruption preserved in Antarctic ice cores. Glaciochemical signals and volcanic ash were identified across multiple sites, revealing regional differences in volcanic transport, deposition, and preservation. Combining ice core records with climate model simulations, we show the eruption likely caused substantial short-term global cooling and atmospheric change but was unlikely to trigger long-term climate shifts.
Adrien Ooms, Mathieu Casado, Sonja Wahl, Thomas Laepple, Alexandra Zuhr, Pete Akers, Ghislain Picard, Laurent Arnaud, Joel Savarino, Kira Rehfeld, Barbara Stenni, Giuliano Dreossi, Mauro Masiol, Amaelle Landais, and Valérie Masson-Delmotte
EGUsphere, https://doi.org/10.5194/egusphere-2026-4801, https://doi.org/10.5194/egusphere-2026-4801, 2026
This preprint is open for discussion and under review for Climate of the Past (CP).
Short summary
Short summary
This work presents new insights in the archival process of multi-annual climatic signal in the near surface firn at Concordia Station, East-Antarctica, from the new data set of high resolution stable water isotope profiles measured in a snow trench. The dated isotopic profiles covering 20 years are compared against overlapping precipitation and surface snow observations. This highlights the strong contribution of stratigraphic noise and post depositional effects to individual trench profiles.
Clarissa Baldo, Servanne Chevaillier, Sophie Nowak, Gael Noyalet, Sandra Lafon, Claudia Di Biagio, Amelie Chaput, James King, Mathieu Cazaunau, Edouard Pangui, Jean-Francois Doussin, Remi Stanus, Nadine Mattielli, Heleen C. Vos, Gregory S. Okin, Brigitte Language, Tjaart Van Der Walt, Stuart Piketh, Karine Desboeufs, Akinori Ito, Silvia Becagli, Eugene Marais, Laurie Barrier, Stéphane Jacquemoud, and Paola Formenti
Atmos. Chem. Phys., 26, 10727–10749, https://doi.org/10.5194/acp-26-10727-2026, https://doi.org/10.5194/acp-26-10727-2026, 2026
Short summary
Short summary
Our results show that crustal element ratios and clay contents distinguish dust aerosols from arid western coastal areas and humid eastern inland regions in Southern Africa. This dust contains key micronutrients that can become bioaccessible during atmospheric transport to nearby and remote marine ecosystems. It is also enriched in carbonates and K-feldspar, serving as a source of cloud condensation and ice nuclei, with potential implications ranging from regional to sub-hemispheric scales.
Agnese Petteni, Mathieu Casado, Christophe Leroy-Dos Santos, Amaelle Landais, Niels Dutrievoz, Cécile Agosta, Pete D. Akers, Joel Savarino, Andrea Spolaor, Massimo Frezzotti, and Barbara Stenni
The Cryosphere, 20, 3581–3598, https://doi.org/10.5194/tc-20-3581-2026, https://doi.org/10.5194/tc-20-3581-2026, 2026
Short summary
Short summary
We investigated the isotopic composition of surface snow in a previously unexplored region of East Antarctica to understand how differences in air mass origin influence its variability. By comparing observations with model data, we validated the model and quantified the impact of post-depositional processes at the snow–atmosphere interface. Our results offer valuable insights for reconstructing past temperatures from ice cores.
Alexis Lamothe, Edouard Bard, Nicolas Thouveny, Ellyn Auriol, Mirko Severi, Rita Traversi, Martine De Angelis, Frank Wilhelms, Robert Mulvaney, Fawzi Zaidi, Georges Aumaitre, Karim Keddadouche, and Mélanie Baroni
Geochronology, 8, 351–371, https://doi.org/10.5194/gchron-8-351-2026, https://doi.org/10.5194/gchron-8-351-2026, 2026
Short summary
Short summary
We studied changes in Earth's magnetic field between 170 000 and 270 000 years ago using beryllium data from Antarctic ice. Our results reveal three periods when the magnetic field weakened, including one major event with a rapid fall and gradual recovery. These findings help explain how Earth's magnetic field behaves during short-term disturbances and improve the timing of past climate and geological records.
Adrien Ooms, Mathieu Casado, Ghislain Picard, Laurent Arnaud, Maria Hörhold, Andrea Spolaor, Rita Traversi, Joel Savarino, Patrick Ginot, Pete Akers, Birthe Twarloh, and Valérie Masson-Delmotte
The Cryosphere, 20, 3235–3255, https://doi.org/10.5194/tc-20-3235-2026, https://doi.org/10.5194/tc-20-3235-2026, 2026
Short summary
Short summary
This work presents a new approach to the estimation of accumulation rates at Concordia Station, East-Antarctica, for the last 20 years, from a new data set of chemical tracers and snow micro-scale properties measured in a snow trench. Multi-annual and meter to decameter scale variability of accumulation rates are compared again in-situ measurements of surface laser scanner and stake farm, with very good agreement. This further constrains SMB estimation for Antarctica at high temporal resolution.
Paolo Gabrielli, Theo M. Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
Clim. Past, 22, 1037–1055, https://doi.org/10.5194/cp-22-1037-2026, https://doi.org/10.5194/cp-22-1037-2026, 2026
Short summary
Short summary
A low latitude-high altitude Alpine ice core record was obtained in 2011 from the glacier Alto dell’Ortles (Eastern Alps, Italy) and provided evidence of one of the oldest Alpine ice core records spanning the last ~7000 years, back to the last Northern Hemisphere Climatic Optimum. Here we provide a new Alto dell’Ortles chronology of improved accuracy that will allow to constrain Holocene climatic and environmental histories emerging from this high-altitude glacial archive of Central Europe.
Elena Barbaro, Francisco Ardini, Silvia Becagli, Stefano Bertinetti, Federica Bruschi, Giulia Calzolai, Alice Cavaliere, David Cappelletti, Stefano Crocchianti, Matteo Feltracco, Andrea Gambaro, Fabio Giardi, Stefania Gilardoni, Marco Grotti, Dominic Heslin-Rees, Radovan Krejci, Mery Malandrino, Matilde Mataloni, Simonetta Montaguti, Silvia Nava, Marco Paglione, Matteo Rinaldi, Chiara Ripa, Mirko Severi, Andrea Spolaor, Rita Traversi, Hilde Uggerud, Giulio Verazzo, Tessa Viglezio, Karl Espen Yttri, Wenche Aas, and Mauro Mazzola
EGUsphere, https://doi.org/10.5194/egusphere-2026-1467, https://doi.org/10.5194/egusphere-2026-1467, 2026
Short summary
Short summary
This study analyzes how Arctic atmospheric layering affects aerosol distribution by comparing data from the Gruvebadet (61 m) and Zeppelin (472 m) observatories in Svalbard. Results show consistent levels of human-made pollutants like sulfate at both heights, confirming long-range transport from Eurasia. Conversely, natural biogenic tracers were more concentrated at lower altitudes. By integrating chemical and meteorological data, the research highlights the need for multi-level monitoring.
Azzurra Spagnesi, Elena Barbaro, Matteo Feltracco, Federico Scoto, Marco Vecchiato, Massimiliano Vardè, Mauro Mazzola, François Burgay, Federica Bruschi, Clara Jule Marie Hoppe, Allison Bailey, Andrea Gambaro, Carlo Barbante, and Andrea Spolaor
Atmos. Chem. Phys., 25, 16215–16232, https://doi.org/10.5194/acp-25-16215-2025, https://doi.org/10.5194/acp-25-16215-2025, 2025
Short summary
Short summary
Svalbard is ideal for studying how warming affects snow’s seasonal chemistry. By comparing the snow chemical composition of the 2019–2020 season with 2018–2019 and 2020–2021, we provide an overview of the seasonal and interannual variability of several chemical species on the Svalbard snowpack, furnishing insights into the interplay between short-term meteorological variability and the long-term climatic impacts of climate changes.
Claudio Stefanini, Barbara Stenni, Mauro Masiol, Giuliano Dreossi, Vincent Favier, Francesca Becherini, Claudio Scarchilli, Virginia Ciardini, Gabriele Carugati, and Massimo Frezzotti
The Cryosphere, 19, 5781–5799, https://doi.org/10.5194/tc-19-5781-2025, https://doi.org/10.5194/tc-19-5781-2025, 2025
Short summary
Short summary
This study analyzes snow accumulation near Concordia Station in Antarctica (3233 m) to estimate yearly snow accumulation. Data from Italian and French stake farms show strong variation due to wind and surface features. On average, 7–8 cm of snow accumulate yearly near the Station. The study also compares results with climate models and explores whether the station buildings affect measurements.
Agnese Petteni, Elise Fourré, Elsa Gautier, Azzurra Spagnesi, Roxanne Jacob, Pete D. Akers, Daniele Zannoni, Jacopo Gabrieli, Olivier Jossoud, Frédéric Prié, Amaëlle Landais, Titouan Tcheng, Barbara Stenni, Joel Savarino, Patrick Ginot, and Mathieu Casado
Atmos. Meas. Tech., 18, 5435–5455, https://doi.org/10.5194/amt-18-5435-2025, https://doi.org/10.5194/amt-18-5435-2025, 2025
Short summary
Short summary
Our research compares three systems of continuous flow analysis coupled with cavity ring-down spectrometry (CFA-CRD) from Venice, Paris, and Grenoble laboratories for measuring water isotopes in ice cores, crucial for reconstructing past climate. We quantify each system’s mixing and measurement noise effects, which impact the achievable resolution of isotope continuous records. Our findings reveal specific configurations and procedures to enhance measurement accuracy, providing a framework to optimise water isotope analysis.
Ailsa Chung, Frédéric Parrenin, Robert Mulvaney, Luca Vittuari, Massimo Frezzotti, Antonio Zanutta, David A. Lilien, Marie G. P. Cavitte, and Olaf Eisen
The Cryosphere, 19, 4125–4140, https://doi.org/10.5194/tc-19-4125-2025, https://doi.org/10.5194/tc-19-4125-2025, 2025
Short summary
Short summary
We applied an ice flow model to a flow line from the summit of Dome C to the Beyond EPICA ice core drill site on Little Dome C in Antarctica. Results show that the oldest ice at the drill site may be 1.12 Ma (at an age density of 20 kyr m-1) and originate from around 15 km upstream. We also discuss the nature of the 200–250 m thick basal layer which could be composed of stagnant ice, disturbed ice or even accreted ice (possibly containing debris).
Luca Carturan, Alexander C. Ihle, Federico Cazorzi, Tiziana Lazzarina Zendrini, Fabrizio De Blasi, Giancarlo Dalla Fontana, Giuliano Dreossi, Daniela Festi, Bryan Mark, Klaus Dieter Oeggl, Roberto Seppi, Barbara Stenni, and Paolo Gabrielli
The Cryosphere, 19, 3443–3458, https://doi.org/10.5194/tc-19-3443-2025, https://doi.org/10.5194/tc-19-3443-2025, 2025
Short summary
Short summary
Paleoclimatic glacial archives in low-latitude mountains are increasingly affected by melt, causing heavy percolation and removing snow and firn accumulated across months, seasons, or even years. Here we present a proxy system model that explicitly accounts for melt in ice and firn cores. Compared to traditional annual layer counting, the model significantly improved the interpretation and annual dating of the Mt Ortles firn core, in the Italian Alps, which includes the very warm summer of 2003.
Serena Lagorio, Barbara Delmonte, Dieter Tetzner, Elisa Malinverno, Giovanni Baccolo, Barbara Stenni, Massimo Frezzotti, Valter Maggi, and Nancy Bertler
Clim. Past, 21, 1323–1341, https://doi.org/10.5194/cp-21-1323-2025, https://doi.org/10.5194/cp-21-1323-2025, 2025
Short summary
Short summary
Aeolian diatoms and dust in the Antarctic Roosevelt Island Climate Evolution project (RICE) ice core allow the reconstruction of atmospheric circulation and climate variability in the Eastern Ross Sea over the past 2 millennia. Since about 1470 CE and during the Little Ice Age, the site experienced a rapid atmospheric circulation reorganization related to the development of the Roosevelt Island polynya, the eastward protrusion of the Ross Sea polynya that significantly impacted the regional climate dynamics of the Ross Sea area.
Yalalt Nyamgerel, Yeongcheol Han, Soon Do Hur, Hyemi Kim, Songyi Kim, Jangil Moon, Barbara Stenni, and Jeonghoon Lee
EGUsphere, https://doi.org/10.5194/egusphere-2025-2408, https://doi.org/10.5194/egusphere-2025-2408, 2025
Short summary
Short summary
This research explores climate patterns recorded in Antarctic ice over the past two centuries. By analyzing ice layers, we identified connections between Antarctica's climate and tropical ocean conditions. Results show changing influences over time and highlight the Indian Ocean's key role in Antarctic snowfall. This improves understanding of how polar and tropical climates interact, crucial for future climate predictions.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, P. Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankararaman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Johann Engelbrecht, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbigniew Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gómez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal L. Weagle, and Xi Zhao
Atmos. Chem. Phys., 25, 4665–4702, https://doi.org/10.5194/acp-25-4665-2025, https://doi.org/10.5194/acp-25-4665-2025, 2025
Short summary
Short summary
Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as being variable in size and composition. Here, we present a new compilation of PM2.5 and PM10 aerosol observations, focusing on the spatial variability across different observational stations, including composition, and demonstrate a method for comparing the data sets to model output.
Johanna Schäfer, Anja Beschnitt, François Burgay, Thomas Singer, Margit Schwikowski, and Thorsten Hoffmann
Atmos. Meas. Tech., 18, 421–430, https://doi.org/10.5194/amt-18-421-2025, https://doi.org/10.5194/amt-18-421-2025, 2025
Short summary
Short summary
Glaciers preserve organic compounds from atmospheric aerosols, which can serve as markers for emission sources. Most studies overlook the enantiomers of chiral compounds. We developed a two-dimensional liquid chromatography method to determine the chiral ratios of the monoterpene oxidation products cis-pinic acid and cis-pinonic acid in ice-core samples. Applied to samples from the Belukha Glacier (1870–1970 CE), the method revealed fluctuating chiral ratios for the analytes.
Inès Ollivier, Hans Christian Steen-Larsen, Barbara Stenni, Laurent Arnaud, Mathieu Casado, Alexandre Cauquoin, Giuliano Dreossi, Christophe Genthon, Bénédicte Minster, Ghislain Picard, Martin Werner, and Amaëlle Landais
The Cryosphere, 19, 173–200, https://doi.org/10.5194/tc-19-173-2025, https://doi.org/10.5194/tc-19-173-2025, 2025
Short summary
Short summary
The role of post-depositional processes taking place at the ice sheet's surface on the water stable isotope signal measured in polar ice cores is not fully understood. Using field observations and modelling results, we show that the original precipitation isotopic signal at Dome C, East Antarctica, is modified by post-depositional processes and provide the first quantitative estimation of their mean impact on the isotopic signal observed in the snow.
Luca Teruzzi, Andrea Spolaor, David Cappelletti, Claudio Artoni, and Marco A. C. Potenza
EGUsphere, https://doi.org/10.5194/egusphere-2024-2057, https://doi.org/10.5194/egusphere-2024-2057, 2024
Preprint archived
Short summary
Short summary
We present a novel probe to measure visible light penetration into the uppermost snow layers with high spatial resolution. The probe is designed to be lightweight and robust to be exploited in extreme environments, extrapolating to the UV region. Such experimental approach will allow to fill the gap in the current understanding of sunlight propagation through the snowpack, often based on numerical approaches, improving the understanding of those processes occurring in snow even in the UV region.
Rachael H. Rhodes, Yvan Bollet-Quivogne, Piers Barnes, Mirko Severi, and Eric W. Wolff
Clim. Past, 20, 2031–2043, https://doi.org/10.5194/cp-20-2031-2024, https://doi.org/10.5194/cp-20-2031-2024, 2024
Short summary
Short summary
Some ionic components slowly move through glacier ice by diffusion, but the rate of this diffusion, its exact mechanism(s), and the factors that might influence it are poorly understood. In this study, we model how peaks in sulfate, deposited at Dome C on the Antarctic ice sheet after volcanic eruptions, change with depth and time. We find that the sulfate diffusion rate in ice is relatively fast in young ice near the surface, but the rate is markedly reduced over time.
Giuliano Dreossi, Mauro Masiol, Barbara Stenni, Daniele Zannoni, Claudio Scarchilli, Virginia Ciardini, Mathieu Casado, Amaëlle Landais, Martin Werner, Alexandre Cauquoin, Giampietro Casasanta, Massimo Del Guasta, Vittoria Posocco, and Carlo Barbante
The Cryosphere, 18, 3911–3931, https://doi.org/10.5194/tc-18-3911-2024, https://doi.org/10.5194/tc-18-3911-2024, 2024
Short summary
Short summary
Oxygen and hydrogen stable isotopes have been extensively used to reconstruct past temperatures, with precipitation representing the input signal of the isotopic records in ice cores. We present a 10-year record of stable isotopes in daily precipitation at Concordia Station: this is the longest record for inland Antarctica and represents a benchmark for quantifying post-depositional processes and improving the paleoclimate interpretation of ice cores.
Romilly Harris Stuart, Amaëlle Landais, Laurent Arnaud, Christo Buizert, Emilie Capron, Marie Dumont, Quentin Libois, Robert Mulvaney, Anaïs Orsi, Ghislain Picard, Frédéric Prié, Jeffrey Severinghaus, Barbara Stenni, and Patricia Martinerie
The Cryosphere, 18, 3741–3763, https://doi.org/10.5194/tc-18-3741-2024, https://doi.org/10.5194/tc-18-3741-2024, 2024
Short summary
Short summary
Ice core δO2/N2 records are useful dating tools due to their local insolation pacing. A precise understanding of the physical mechanism driving this relationship, however, remain ambiguous. By compiling data from 15 polar sites, we find a strong dependence of mean δO2/N2 on accumulation rate and temperature in addition to the well-documented insolation dependence. Snowpack modelling is used to investigate which physical properties drive the mechanistic dependence on these local parameters.
Tessa R. Vance, Nerilie J. Abram, Alison S. Criscitiello, Camilla K. Crockart, Aylin DeCampo, Vincent Favier, Vasileios Gkinis, Margaret Harlan, Sarah L. Jackson, Helle A. Kjær, Chelsea A. Long, Meredith K. Nation, Christopher T. Plummer, Delia Segato, Andrea Spolaor, and Paul T. Vallelonga
Clim. Past, 20, 969–990, https://doi.org/10.5194/cp-20-969-2024, https://doi.org/10.5194/cp-20-969-2024, 2024
Short summary
Short summary
This study presents the chronologies from the new Mount Brown South ice cores from East Antarctica, which were developed by counting annual layers in the ice core data and aligning these to volcanic sulfate signatures. The uncertainty in the dating is quantified, and we discuss initial results from seasonal cycle analysis and mean annual concentrations. The chronologies will underpin the development of new proxy records for East Antarctica spanning the past millennium.
Giandomenico Pace, Alcide di Sarra, Filippo Cali Quaglia, Virginia Ciardini, Tatiana Di Iorio, Antonio Iaccarino, Daniela Meloni, Giovanni Muscari, and Claudio Scarchilli
Atmos. Meas. Tech., 17, 1617–1632, https://doi.org/10.5194/amt-17-1617-2024, https://doi.org/10.5194/amt-17-1617-2024, 2024
Short summary
Short summary
This study investigates the performances of 17 formulas to determine the clear sky longwave downward irradiance in the Arctic environment. The formulas need to be tuned to the environmental conditions of the studied region and, to date, few of them have been developed and/or tested in the Arctic. The best formulas provide biases and root mean squared errors respectively smaller than 1 and 5 W m-2. We intend to use these results to estimate the longwave cloud radiative perturbation.
Tyler J. Fudge, Raphael Sauvage, Linh Vu, Benjamin H. Hills, Mirko Severi, and Edwin D. Waddington
Clim. Past, 20, 297–312, https://doi.org/10.5194/cp-20-297-2024, https://doi.org/10.5194/cp-20-297-2024, 2024
Short summary
Short summary
We use the oldest Antarctic ice core to estimate the rate of diffusion of sulfuric acid. Sulfuric acid is a marker of past volcanic activity and is critical in developing ice core timescales. The rate of diffusion is uncertain and is important to know, both for selecting future ice core locations and interpreting ice core records. We find the effective diffusivity of sulfate is 10 times smaller than previously estimated, indicating that the sulfuric acid signals will persist for longer.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankarararman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Hannele Hakola, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbiginiw Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gomez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal Weagle, and Xi Zhao
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-1, https://doi.org/10.5194/essd-2024-1, 2024
Preprint withdrawn
Short summary
Short summary
Aerosol particles can interact with incoming solar radiation and outgoing long wave radiation, change cloud properties, affect photochemistry, impact surface air quality, and when deposited impact surface albedo of snow and ice, and modulate carbon dioxide uptake by the land and ocean. Here we present a new compilation of aerosol observations including composition, a methodology for comparing the datasets to model output, and show the implications of these results using one model.
Daniela Meloni, Filippo Calì Quaglia, Virginia Ciardini, Annalisa Di Bernardino, Tatiana Di Iorio, Antonio Iaccarino, Giovanni Muscari, Giandomenico Pace, Claudio Scarchilli, and Alcide di Sarra
Earth Syst. Sci. Data, 16, 543–566, https://doi.org/10.5194/essd-16-543-2024, https://doi.org/10.5194/essd-16-543-2024, 2024
Short summary
Short summary
Solar and infrared radiation are key factors in determining Arctic climate. Only a few sites in the Arctic perform long-term measurements of the surface radiation budget (SRB). At the Thule High Arctic Atmospheric Observatory (THAAO, 76.5° N, 68.8° W) in Northern Greenland, solar and infrared irradiance measurements were started in 2009. These data are of paramount importance in studying the impact of the atmospheric (mainly clouds and aerosols) and surface (albedo) parameters on the SRB.
Andrea Spolaor, Federico Scoto, Catherine Larose, Elena Barbaro, Francois Burgay, Mats P. Bjorkman, David Cappelletti, Federico Dallo, Fabrizio de Blasi, Dmitry Divine, Giuliano Dreossi, Jacopo Gabrieli, Elisabeth Isaksson, Jack Kohler, Tonu Martma, Louise S. Schmidt, Thomas V. Schuler, Barbara Stenni, Clara Turetta, Bartłomiej Luks, Mathieu Casado, and Jean-Charles Gallet
The Cryosphere, 18, 307–320, https://doi.org/10.5194/tc-18-307-2024, https://doi.org/10.5194/tc-18-307-2024, 2024
Short summary
Short summary
We evaluate the impact of the increased snowmelt on the preservation of the oxygen isotope (δ18O) signal in firn records recovered from the top of the Holtedahlfonna ice field located in the Svalbard archipelago. Thanks to a multidisciplinary approach we demonstrate a progressive deterioration of the isotope signal in the firn core. We link the degradation of the δ18O signal to the increased occurrence and intensity of melt events associated with the rapid warming occurring in the archipelago.
Barbara Harm-Altstädter, Konrad Bärfuss, Lutz Bretschneider, Martin Schön, Jens Bange, Ralf Käthner, Radovan Krejci, Mauro Mazzola, Kihong Park, Falk Pätzold, Alexander Peuker, Rita Traversi, Birgit Wehner, and Astrid Lampert
Aerosol Research, 1, 39–64, https://doi.org/10.5194/ar-1-39-2023, https://doi.org/10.5194/ar-1-39-2023, 2023
Short summary
Short summary
We present observations of aerosol particles and meteorological parameters in the horizontal and vertical distribution measured with uncrewed aerial systems in the Arctic. The field campaign was carried out during the snow melting season, when ultrafine aerosol particles (UFPs) with a size between 3 and 12 nm occurred frequently. A high variability of the measured UFPs was identified in the spatial scale, which was strongly associated with different atmospheric boundary layer properties.
Tobias Erhardt, Camilla Marie Jensen, Florian Adolphi, Helle Astrid Kjær, Remi Dallmayr, Birthe Twarloh, Melanie Behrens, Motohiro Hirabayashi, Kaori Fukuda, Jun Ogata, François Burgay, Federico Scoto, Ilaria Crotti, Azzurra Spagnesi, Niccoló Maffezzoli, Delia Segato, Chiara Paleari, Florian Mekhaldi, Raimund Muscheler, Sophie Darfeuil, and Hubertus Fischer
Earth Syst. Sci. Data, 15, 5079–5091, https://doi.org/10.5194/essd-15-5079-2023, https://doi.org/10.5194/essd-15-5079-2023, 2023
Short summary
Short summary
The presented paper provides a 3.8 kyr long dataset of aerosol concentrations from the East Greenland Ice coring Project (EGRIP) ice core. The data consists of 1 mm depth-resolution profiles of calcium, sodium, ammonium, nitrate, and electrolytic conductivity as well as decadal averages of these profiles. Alongside the data a detailed description of the measurement setup as well as a discussion of the uncertainties are given.
Guangyu Li, Elise K. Wilbourn, Zezhen Cheng, Jörg Wieder, Allison Fagerson, Jan Henneberger, Ghislain Motos, Rita Traversi, Sarah D. Brooks, Mauro Mazzola, Swarup China, Athanasios Nenes, Ulrike Lohmann, Naruki Hiranuma, and Zamin A. Kanji
Atmos. Chem. Phys., 23, 10489–10516, https://doi.org/10.5194/acp-23-10489-2023, https://doi.org/10.5194/acp-23-10489-2023, 2023
Short summary
Short summary
In this work, we present results from an Arctic field campaign (NASCENT) in Ny-Ålesund, Svalbard, on the abundance, variability, physicochemical properties, and potential sources of ice-nucleating particles (INPs) relevant for mixed-phase cloud formation. This work improves the data coverage of Arctic INPs and aerosol properties, allowing for the validation of models predicting cloud microphysical and radiative properties of mixed-phase clouds in the rapidly warming Arctic.
Ailsa Chung, Frédéric Parrenin, Daniel Steinhage, Robert Mulvaney, Carlos Martín, Marie G. P. Cavitte, David A. Lilien, Veit Helm, Drew Taylor, Prasad Gogineni, Catherine Ritz, Massimo Frezzotti, Charles O'Neill, Heinrich Miller, Dorthe Dahl-Jensen, and Olaf Eisen
The Cryosphere, 17, 3461–3483, https://doi.org/10.5194/tc-17-3461-2023, https://doi.org/10.5194/tc-17-3461-2023, 2023
Short summary
Short summary
We combined a numerical model with radar measurements in order to determine the age of ice in the Dome C region of Antarctica. Our results show that at the current ice core drilling sites on Little Dome C, the maximum age of the ice is almost 1.5 Ma. We also highlight a new potential drill site called North Patch with ice up to 2 Ma. Finally, we explore the nature of a stagnant ice layer at the base of the ice sheet which has been independently observed and modelled but is not well understood.
Elizabeth R. Thomas, Diana O. Vladimirova, Dieter R. Tetzner, B. Daniel Emanuelsson, Nathan Chellman, Daniel A. Dixon, Hugues Goosse, Mackenzie M. Grieman, Amy C. F. King, Michael Sigl, Danielle G. Udy, Tessa R. Vance, Dominic A. Winski, V. Holly L. Winton, Nancy A. N. Bertler, Akira Hori, Chavarukonam M. Laluraj, Joseph R. McConnell, Yuko Motizuki, Kazuya Takahashi, Hideaki Motoyama, Yoichi Nakai, Franciéle Schwanck, Jefferson Cardia Simões, Filipe Gaudie Ley Lindau, Mirko Severi, Rita Traversi, Sarah Wauthy, Cunde Xiao, Jiao Yang, Ellen Mosely-Thompson, Tamara V. Khodzher, Ludmila P. Golobokova, and Alexey A. Ekaykin
Earth Syst. Sci. Data, 15, 2517–2532, https://doi.org/10.5194/essd-15-2517-2023, https://doi.org/10.5194/essd-15-2517-2023, 2023
Short summary
Short summary
The concentration of sodium and sulfate measured in Antarctic ice cores is related to changes in both sea ice and winds. Here we have compiled a database of sodium and sulfate records from 105 ice core sites in Antarctica. The records span all, or part, of the past 2000 years. The records will improve our understanding of how winds and sea ice have changed in the past and how they have influenced the climate of Antarctica over the past 2000 years.
Simone Ventisette, Samuele Baldini, Claudio Artoni, Silvia Becagli, Laura Caiazzo, Barbara Delmonte, Massimo Frezzotti, Raffaello Nardin, Joel Savarino, Mirko Severi, Andrea Spolaor, Barbara Stenni, and Rita Traversi
EGUsphere, https://doi.org/10.5194/egusphere-2023-393, https://doi.org/10.5194/egusphere-2023-393, 2023
Preprint archived
Short summary
Short summary
The paper reports the spatial variability of concentration and fluxes of chemical impurities in superficial snow over unexplored area of the East Antarctic ice sheet. Pinatubo and Puyehue-Cordón Caulle volcanic eruptions in non-sea salt sulfate and dust snow pits record were used to achieve the accumulation rates. Deposition (wet, dry and uptake from snow surface) and post deposition processes are constrained. These knowledges are fundamental in Antarctic ice cores stratigraphies interpretation.
Niccolò Maffezzoli, Eliza Cook, Willem G. M. van der Bilt, Eivind N. Støren, Daniela Festi, Florian Muthreich, Alistair W. R. Seddon, François Burgay, Giovanni Baccolo, Amalie R. F. Mygind, Troels Petersen, Andrea Spolaor, Sebastiano Vascon, Marcello Pelillo, Patrizia Ferretti, Rafael S. dos Reis, Jefferson C. Simões, Yuval Ronen, Barbara Delmonte, Marco Viccaro, Jørgen Peder Steffensen, Dorthe Dahl-Jensen, Kerim H. Nisancioglu, and Carlo Barbante
The Cryosphere, 17, 539–565, https://doi.org/10.5194/tc-17-539-2023, https://doi.org/10.5194/tc-17-539-2023, 2023
Short summary
Short summary
Multiple lines of research in ice core science are limited by manually intensive and time-consuming optical microscopy investigations for the detection of insoluble particles, from pollen grains to volcanic shards. To help overcome these limitations and support researchers, we present a novel methodology for the identification and autonomous classification of ice core insoluble particles based on flow image microscopy and neural networks.
Giacomo Traversa, Davide Fugazza, and Massimo Frezzotti
The Cryosphere, 17, 427–444, https://doi.org/10.5194/tc-17-427-2023, https://doi.org/10.5194/tc-17-427-2023, 2023
Short summary
Short summary
Megadunes are fields of huge snow dunes present in Antarctica and on other planets, important as they present mass loss on the leeward side (glazed snow), on a continent characterized by mass gain. Here, we studied megadunes using remote data and measurements acquired during past field expeditions. We quantified their physical properties and migration and demonstrated that they migrate against slope and wind. We further proposed automatic detections of the glazed snow on their leeward side.
François Burgay, Rafael Pedro Fernández, Delia Segato, Clara Turetta, Christopher S. Blaszczak-Boxe, Rachael H. Rhodes, Claudio Scarchilli, Virginia Ciardini, Carlo Barbante, Alfonso Saiz-Lopez, and Andrea Spolaor
The Cryosphere, 17, 391–405, https://doi.org/10.5194/tc-17-391-2023, https://doi.org/10.5194/tc-17-391-2023, 2023
Short summary
Short summary
The paper presents the first ice-core record of bromine (Br) in the Antarctic plateau. By the observation of the ice core and the application of atmospheric chemical models, we investigate the behaviour of bromine after its deposition into the snowpack, with interest in the effect of UV radiation change connected to the formation of the ozone hole, the role of volcanic deposition, and the possible use of Br to reconstruct past sea ice changes from ice core collect in the inner Antarctic plateau.
Marco Brogioni, Mark J. Andrews, Stefano Urbini, Kenneth C. Jezek, Joel T. Johnson, Marion Leduc-Leballeur, Giovanni Macelloni, Stephen F. Ackley, Alexandra Bringer, Ludovic Brucker, Oguz Demir, Giacomo Fontanelli, Caglar Yardim, Lars Kaleschke, Francesco Montomoli, Leung Tsang, Silvia Becagli, and Massimo Frezzotti
The Cryosphere, 17, 255–278, https://doi.org/10.5194/tc-17-255-2023, https://doi.org/10.5194/tc-17-255-2023, 2023
Short summary
Short summary
In 2018 the first Antarctic campaign of UWBRAD was carried out. UWBRAD is a new radiometer able to collect microwave spectral signatures over 0.5–2 GHz, thus outperforming existing similar sensors. It allows us to probe thicker sea ice and ice sheet down to the bedrock. In this work we tried to assess the UWBRAD potentials for sea ice, glaciers, ice shelves and buried lakes. We also highlighted the wider range of information the spectral signature can provide to glaciological studies.
Eric W. Wolff, Andrea Burke, Laura Crick, Emily A. Doyle, Helen M. Innes, Sue H. Mahony, James W. B. Rae, Mirko Severi, and R. Stephen J. Sparks
Clim. Past, 19, 23–33, https://doi.org/10.5194/cp-19-23-2023, https://doi.org/10.5194/cp-19-23-2023, 2023
Short summary
Short summary
Large volcanic eruptions leave an imprint of a spike of sulfate deposition that can be measured in ice cores. Here we use a method that logs the number and size of large eruptions recorded in an Antarctic core in a consistent way through the last 200 000 years. The rate of recorded eruptions is variable but shows no trends. In particular, there is no increase in recorded eruptions during deglaciation periods. This is consistent with most recorded eruptions being from lower latitudes.
Xavier Giraud, Mélanie Baroni, and Rita Traversi
EGUsphere, https://doi.org/10.5194/egusphere-2022-1455, https://doi.org/10.5194/egusphere-2022-1455, 2023
Preprint archived
Short summary
Short summary
The snowpack in High Antarctic Plateau is an interface medium between the atmosphere and the firn, where past climate conditions are recorded. Originating mainly from oceanic sources, chlorine is deposited along with snow. We propose a mechanism implying the diffusion of HCl at the scale of snow grains, longing a few decades for its release to the Antarctic atmosphere. Based on this scenario, the fate of the anthropogenic 36Cl originating from the nuclear tests can be forcasted.
Antoine Grisart, Mathieu Casado, Vasileios Gkinis, Bo Vinther, Philippe Naveau, Mathieu Vrac, Thomas Laepple, Bénédicte Minster, Frederic Prié, Barbara Stenni, Elise Fourré, Hans Christian Steen-Larsen, Jean Jouzel, Martin Werner, Katy Pol, Valérie Masson-Delmotte, Maria Hoerhold, Trevor Popp, and Amaelle Landais
Clim. Past, 18, 2289–2301, https://doi.org/10.5194/cp-18-2289-2022, https://doi.org/10.5194/cp-18-2289-2022, 2022
Short summary
Short summary
This paper presents a compilation of high-resolution (11 cm) water isotopic records, including published and new measurements, for the last 800 000 years from the EPICA Dome C ice core, Antarctica. Using this new combined water isotopes (δ18O and δD) dataset, we study the variability and possible influence of diffusion at the multi-decadal to multi-centennial scale. We observe a stronger variability at the onset of the interglacial interval corresponding to a warm period.
Carlton Xavier, Metin Baykara, Robin Wollesen de Jonge, Barbara Altstädter, Petri Clusius, Ville Vakkari, Roseline Thakur, Lisa Beck, Silvia Becagli, Mirko Severi, Rita Traversi, Radovan Krejci, Peter Tunved, Mauro Mazzola, Birgit Wehner, Mikko Sipilä, Markku Kulmala, Michael Boy, and Pontus Roldin
Atmos. Chem. Phys., 22, 10023–10043, https://doi.org/10.5194/acp-22-10023-2022, https://doi.org/10.5194/acp-22-10023-2022, 2022
Short summary
Short summary
The focus of this work is to study and improve our understanding of processes involved in the formation and growth of new particles in a remote Arctic marine environment. We run the 1D model ADCHEM along air mass trajectories arriving at Ny-Ålesund in May 2018. The model finds that ion-mediated H2SO4–NH3 nucleation can explain the observed new particle formation at Ny-Ålesund. The growth of particles is driven via H2SO4 condensation and formation of methane sulfonic acid in the aqueous phase.
Fabio Giardi, Silvia Nava, Giulia Calzolai, Giulia Pazzi, Massimo Chiari, Andrea Faggi, Bianca Patrizia Andreini, Chiara Collaveri, Elena Franchi, Guido Nincheri, Alessandra Amore, Silvia Becagli, Mirko Severi, Rita Traversi, and Franco Lucarelli
Atmos. Chem. Phys., 22, 9987–10005, https://doi.org/10.5194/acp-22-9987-2022, https://doi.org/10.5194/acp-22-9987-2022, 2022
Short summary
Short summary
The restriction measures adopted to contain the COVID-19 virus offered a unique opportunity to study urban particulate emissions in the near absence of traffic, which is one of the main emission sources in the urban environment. However, the drastic decrease in this source of particulate matter during the months of national lockdown did not lead to an equal decrease in the total particulate load. This is due to the inverse behavior shown by different sources, especially secondary sources.
Silvia Becagli, Elena Barbaro, Simone Bonamano, Laura Caiazzo, Alcide di Sarra, Matteo Feltracco, Paolo Grigioni, Jost Heintzenberg, Luigi Lazzara, Michel Legrand, Alice Madonia, Marco Marcelli, Chiara Melillo, Daniela Meloni, Caterina Nuccio, Giandomenico Pace, Ki-Tae Park, Suzanne Preunkert, Mirko Severi, Marco Vecchiato, Roberta Zangrando, and Rita Traversi
Atmos. Chem. Phys., 22, 9245–9263, https://doi.org/10.5194/acp-22-9245-2022, https://doi.org/10.5194/acp-22-9245-2022, 2022
Short summary
Short summary
Measurements of phytoplanktonic dimethylsulfide and its oxidation products in the Antarctic atmosphere allow us to understand the role of the oceanic (sea ice melting, Chl α and dimethylsulfoniopropionate) and atmospheric (wind direction and speed, humidity, solar radiation and transport processes) factors in the biogenic aerosol formation, concentration and characteristic ratio between components in an Antarctic coastal site facing the polynya of the Ross Sea.
Michael Sigl, Matthew Toohey, Joseph R. McConnell, Jihong Cole-Dai, and Mirko Severi
Earth Syst. Sci. Data, 14, 3167–3196, https://doi.org/10.5194/essd-14-3167-2022, https://doi.org/10.5194/essd-14-3167-2022, 2022
Short summary
Short summary
Volcanism is a key driver of climate. Based on ice cores from Greenland and Antarctica, we reconstruct its climate impact potential over the Holocene. By aligning records on a well-dated chronology from Antarctica, we resolve long-standing inconsistencies in the dating of past volcanic eruptions. We reconstruct 850 eruptions (which, in total, injected 7410 Tg of sulfur in the stratosphere) and estimate how they changed the opacity of the atmosphere, a prerequisite for climate model simulations.
Giyoon Lee, Jinho Ahn, Hyeontae Ju, Florian Ritterbusch, Ikumi Oyabu, Christo Buizert, Songyi Kim, Jangil Moon, Sambit Ghosh, Kenji Kawamura, Zheng-Tian Lu, Sangbum Hong, Chang Hee Han, Soon Do Hur, Wei Jiang, and Guo-Min Yang
The Cryosphere, 16, 2301–2324, https://doi.org/10.5194/tc-16-2301-2022, https://doi.org/10.5194/tc-16-2301-2022, 2022
Short summary
Short summary
Blue-ice areas (BIAs) have several advantages for reconstructing past climate. However, the complicated ice flow in the area hinders constraining the age. We applied state-of-the-art techniques and found that the ages cover the last deglaciation period. Our study demonstrates that the BIA in northern Victoria Land may help reconstruct the past climate during the termination of the last glacial period.
Cynthia H. Whaley, Rashed Mahmood, Knut von Salzen, Barbara Winter, Sabine Eckhardt, Stephen Arnold, Stephen Beagley, Silvia Becagli, Rong-You Chien, Jesper Christensen, Sujay Manish Damani, Xinyi Dong, Konstantinos Eleftheriadis, Nikolaos Evangeliou, Gregory Faluvegi, Mark Flanner, Joshua S. Fu, Michael Gauss, Fabio Giardi, Wanmin Gong, Jens Liengaard Hjorth, Lin Huang, Ulas Im, Yugo Kanaya, Srinath Krishnan, Zbigniew Klimont, Thomas Kühn, Joakim Langner, Kathy S. Law, Louis Marelle, Andreas Massling, Dirk Olivié, Tatsuo Onishi, Naga Oshima, Yiran Peng, David A. Plummer, Olga Popovicheva, Luca Pozzoli, Jean-Christophe Raut, Maria Sand, Laura N. Saunders, Julia Schmale, Sangeeta Sharma, Ragnhild Bieltvedt Skeie, Henrik Skov, Fumikazu Taketani, Manu A. Thomas, Rita Traversi, Kostas Tsigaridis, Svetlana Tsyro, Steven Turnock, Vito Vitale, Kaley A. Walker, Minqi Wang, Duncan Watson-Parris, and Tahya Weiss-Gibbons
Atmos. Chem. Phys., 22, 5775–5828, https://doi.org/10.5194/acp-22-5775-2022, https://doi.org/10.5194/acp-22-5775-2022, 2022
Short summary
Short summary
Air pollutants, like ozone and soot, play a role in both global warming and air quality. Atmospheric models are often used to provide information to policy makers about current and future conditions under different emissions scenarios. In order to have confidence in those simulations, in this study we compare simulated air pollution from 18 state-of-the-art atmospheric models to measured air pollution in order to assess how well the models perform.
Aki Virkkula, Henrik Grythe, John Backman, Tuukka Petäjä, Maurizio Busetto, Christian Lanconelli, Angelo Lupi, Silvia Becagli, Rita Traversi, Mirko Severi, Vito Vitale, Patrick Sheridan, and Elisabeth Andrews
Atmos. Chem. Phys., 22, 5033–5069, https://doi.org/10.5194/acp-22-5033-2022, https://doi.org/10.5194/acp-22-5033-2022, 2022
Short summary
Short summary
Optical properties of surface aerosols at Dome C, Antarctica, in 2007–2013 and their potential source areas are presented. The equivalent black carbon (eBC) mass concentrations were compared with eBC measured at three other Antarctic sites: the South Pole (SPO) and two coastal sites, Neumayer and Syowa. Transport analysis suggests that South American BC emissions are the largest contributor to eBC at Dome C.
Stefania Danesi, Simone Salimbeni, Alessandra Borghi, Stefano Urbini, and Massimo Frezzotti
EGUsphere, https://doi.org/10.5194/egusphere-2022-29, https://doi.org/10.5194/egusphere-2022-29, 2022
Preprint archived
Short summary
Short summary
Clusters of low-energy seismic events, concentrated in space and time, characterized by highly correlated waveforms (cross-correlation coefficient ≥ 0.95), occur at the floating area of a major ice stream in Antarctica (David Glacier, North Victoria Land). The transient injection of fluids from the David catchment into the regional subglacial hydrographic network, observed by GRACE measurements, is indicated as the main trigger for clustered and repeated seismic occurrences.
Jiamei Lin, Anders Svensson, Christine S. Hvidberg, Johannes Lohmann, Steffen Kristiansen, Dorthe Dahl-Jensen, Jørgen Peder Steffensen, Sune Olander Rasmussen, Eliza Cook, Helle Astrid Kjær, Bo M. Vinther, Hubertus Fischer, Thomas Stocker, Michael Sigl, Matthias Bigler, Mirko Severi, Rita Traversi, and Robert Mulvaney
Clim. Past, 18, 485–506, https://doi.org/10.5194/cp-18-485-2022, https://doi.org/10.5194/cp-18-485-2022, 2022
Short summary
Short summary
We employ acidity records from Greenland and Antarctic ice cores to estimate the emission strength, frequency and climatic forcing for large volcanic eruptions from the last half of the last glacial period. A total of 25 volcanic eruptions are found to be larger than any eruption in the last 2500 years, and we identify more eruptions than obtained from geological evidence. Towards the end of the glacial period, there is a notable increase in volcanic activity observed for Greenland.
Marjan Marbouti, Sehyun Jang, Silvia Becagli, Gabriel Navarro, Rita Traversi, Kitack Lee, Tuomo Nieminen, Lisa J. Beck, Markku Kulmala, Veli-Matti Kerminen, and Mikko Sipilä
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-52, https://doi.org/10.5194/acp-2022-52, 2022
Publication in ACP not foreseen
Short summary
Short summary
This research was done to understand and investigate the roles of Chl-a, PP and sea ice extent in controlling and producing the in-situ measured MSA, SA, HIO3, HOM and aerosol concentrations over the Greenland and Barents Seas. Our results provide strong support to the hypothesis that MSA, SA and small-particle concentrations in the Svalbard area are directly linked to ocean biological activity and sea ice melting during springtime.
Paolo Gabrielli, Theo Manuel Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
Clim. Past Discuss., https://doi.org/10.5194/cp-2022-20, https://doi.org/10.5194/cp-2022-20, 2022
Revised manuscript not accepted
Short summary
Short summary
We present a methodology that reduces the chronological uncertainty of an Alpine ice core record from the glacier Alto dell’Ortles, Italy. This chronology will allow the constraint of the Holocene climatic and environmental histories emerging from this archive of Central Europe. This method will allow to obtain accurate chronologies also from other ice cores from-low latitude/high-altitude glaciers that typically suffer from larger dating uncertainties compared with well dated polar records.
Julia Schmale, Sangeeta Sharma, Stefano Decesari, Jakob Pernov, Andreas Massling, Hans-Christen Hansson, Knut von Salzen, Henrik Skov, Elisabeth Andrews, Patricia K. Quinn, Lucia M. Upchurch, Konstantinos Eleftheriadis, Rita Traversi, Stefania Gilardoni, Mauro Mazzola, James Laing, and Philip Hopke
Atmos. Chem. Phys., 22, 3067–3096, https://doi.org/10.5194/acp-22-3067-2022, https://doi.org/10.5194/acp-22-3067-2022, 2022
Short summary
Short summary
Long-term data sets of Arctic aerosol properties from 10 stations across the Arctic provide evidence that anthropogenic influence on the Arctic atmospheric chemical composition has declined in winter, a season which is typically dominated by mid-latitude emissions. The number of significant trends in summer is smaller than in winter, and overall the pattern is ambiguous with some significant positive and negative trends. This reflects the mixed influence of natural and anthropogenic emissions.
Marie G. P. Cavitte, Duncan A. Young, Robert Mulvaney, Catherine Ritz, Jamin S. Greenbaum, Gregory Ng, Scott D. Kempf, Enrica Quartini, Gail R. Muldoon, John Paden, Massimo Frezzotti, Jason L. Roberts, Carly R. Tozer, Dustin M. Schroeder, and Donald D. Blankenship
Earth Syst. Sci. Data, 13, 4759–4777, https://doi.org/10.5194/essd-13-4759-2021, https://doi.org/10.5194/essd-13-4759-2021, 2021
Short summary
Short summary
We present a data set consisting of ice-penetrating-radar internal stratigraphy: 26 internal reflecting horizons that cover the greater Dome C area, East Antarctica, the most extensive IRH data set to date in the region. This data set uses radar surveys collected over the span of 10 years, starting with an airborne international collaboration in 2008 to explore the region, up to the detailed ground-based surveys in support of the European Beyond EPICA – Oldest Ice (BE-OI) project.
Giovanni Baccolo, Barbara Delmonte, Elena Di Stefano, Giannantonio Cibin, Ilaria Crotti, Massimo Frezzotti, Dariush Hampai, Yoshinori Iizuka, Augusto Marcelli, and Valter Maggi
The Cryosphere, 15, 4807–4822, https://doi.org/10.5194/tc-15-4807-2021, https://doi.org/10.5194/tc-15-4807-2021, 2021
Short summary
Short summary
As scientists are pushing efforts to recover deep ice cores to extend paleoclimatic reconstructions, it is now essential to explore deep ice. The latter was considered a relatively stable environment, but this view is changing. This study shows that the conditions of deep ice promote the interaction between soluble and insoluble impurities, favoring complex geochemical reactions that lead to the englacial dissolution and precipitation of specific minerals present in atmospheric mineral dust.
Matteo Rinaldi, Naruki Hiranuma, Gianni Santachiara, Mauro Mazzola, Karam Mansour, Marco Paglione, Cheyanne A. Rodriguez, Rita Traversi, Silvia Becagli, David Cappelletti, and Franco Belosi
Atmos. Chem. Phys., 21, 14725–14748, https://doi.org/10.5194/acp-21-14725-2021, https://doi.org/10.5194/acp-21-14725-2021, 2021
Short summary
Short summary
This study aims to add to the still scant ice-nucleating particle (INP) observations in the Arctic environment, investigating INP concentrations and potential sources, during spring and summertime, at the ground-level site of GVB. The lack of a clear concentration seasonal trend, in contrast with previous works, shows an important interannual variability of Arctic INP sources, which may be both terrestrial and marine, outside the Arctic haze period.
Cited articles
Abram, N. J., Wolff, E. W., and Curran, M. A. J.: A review of sea ice proxy
information from polar ice cores, Quaternary Sci. Rev., 79, 168–183,
https://doi.org/10.1016/j.quascirev.2013.01.011, 2013.
Alley, R. B., Shuman, C. A., Meese, D. A., Gow, A. J., Taylor, K. C.,
Cuffey, K. M., Fitzpatrick, J. J., Grootes, P. M., Zielinski, G. A., Ram,
M., Spinelli, G., and Elder, B.: Visual-stratigraphic dating of the GISP2 ice
core: Basis, reproducibility, and application, J. Geophys.
Res.-Oceans, 102, 26367–26381, https://doi.org/10.1029/96JC03837,
1997.
Becagli, S., Proposito, M., Benassai, S., Flora, O., Genoni, L., Gragnani,
R., Largiuni, O., Pili, S. L., Severi, M., Stenni, B., Traversi, R., Udisti,
R., and Frezzotti, M.: Chemical and isotopic snow variability in East
Antarctica along the 2001/02 ITASE traverse, Ann. Glaciol., 39,
473–482, https://doi.org/10.3189/172756404781814636, 2004.
Becagli, S., Scarchilli, C., Traversi, R., Dayan, U., Severi, M., Frosini,
D., Vitale, V., Mazzola, M., Lupi, A., Nava, S., and Udisti, R.: Study of
present-day sources and transport processes affecting oxidised sulphur
compounds in atmospheric aerosols at Dome C (Antarctica) from year-round
sampling campaigns, Atmos. Environ., 52, 98–108,
https://doi.org/10.1016/j.atmosenv.2011.07.053, 2012.
Benassai, S., Becagli, S., Gragnani, R., Magand, O., Proposito, M., Fattori,
I., Traversi, R., and Udisti, R.: Sea-spray deposition in Antarctic coastal
and plateau areas from ITASE traverses, Ann. Glaciol., 41, 32–40,
https://doi.org/10.3189/172756405781813285, 2005.
Berhanu, T. A., Meusinger, C., Erbland, J., Jost. R., Bhattacharya, S. K.,
Johnson, M. S., and Savarino, J.: Laboratory study of nitrate photolysis in
Antarctic snow. II. Isotopic effects and wavelength dependence, J.
Chem. Phys., 140, 244306, https://doi.org/10.1063/1.4882899,
2014.
Bertler, N. A. N., Mayewski, P. A., and Carter, L.: Cold conditions in
Antarctica during the Little Ice Age – Implications for abrupt climate
change mechanisms, Earth Planet. Sci. Lett., 308, 41–51,
https://doi.org/10.1016/j.epsl.2011.05.021, 2011.
Bodhaine, B. A., Deluisi, J. J., Harris, J. M., Houmere, P., and Bauman, S.:
Aerosol measurements at the South Pole, Tellus B, 38B, 223–235,
https://doi.org/10.1111/j.1600-0889.1986.tb00189.x, 1986.
Bowen, H. J. M.: Environmental chemistry of the elements, Academic Press,
London, ISBN: 780121204501, 1979.
Caiazzo, L., Becagli, S., Frosini, D., Giardi, F., Severi, M., Traversi, R.,
and Udisti, R.: Spatial and temporal variability of snow chemical
composition and accumulation rate at Talos Dome site (East Antarctica),
Sci. Total Environ., 550, 418–430,
https://doi.org/10.1016/j.scitotenv.2016.01.087, 2016.
Caiazzo, L., Baccolo, G., Barbante, C., Becagli, S., Bertò, M.,
Ciardini, V., Crotti, I., Delmonte, B., Dreossi, G., Frezzotti, M.,
Gabrieli, J., Giardi, F., Han, Y., Hong, S. B., Hur, S. D., Hwang, H., Kang,
J. H., Narcisi, B., Proposito, M., Scarchilli, C., Selmo, E., Severi, M.,
Spolaor, A., Stenni, B., Traversi, R., and Udisti, R.: Prominent features in
isotopic, chemical and dust stratigraphies from coastal East Antarctic ice
sheet (Eastern Wilkes Land), Chemosphere, 176, 273–287,
https://doi.org/10.1016/j.chemosphere.2017.02.115, 2017.
Candelone, J.-P., Hong, S., and Boutron, C. F.: An improved method for
decontaminating polar snow or ice cores for heavy metal analysis, Anal.
Chimica Acta, 299, 9–16, 1994.
Candelone, J.-P., Bolshov, M. A., Rudniev, S. N., Hong, S., and Boutron, C.
F.: Bismuth in recent snow from Central Greenland: Preliminary results,
Atmos. Environ., 29, 1843–1848,
https://doi.org/10.1016/1352-2310(95)00058-7, 1995.
Castellano, E., Becagli, S., Jouzel, J., Migliori, A., Severi, M.,
Steffensen, J. P., Traversi, R., and Udisti, R.: Volcanic eruption frequency
over the last 45 ky as recorded in Epica-Dome C ice core (East Antarctica)
and its relationship with climatic changes, Global Planet. Change,
42, 195–205, https://doi.org/10.1016/j.gloplacha.2003.11.007,
2004.
Castellano, E., Becagli, S., Hansson, M., Hutterli, M., Petit, J. R.,
Rampino, M. R., Severi, M., Steffensen, J. P., Traversi, R., and Udisti, R.:
Holocene volcanic history as recorded in the sulfate stratigraphy of the
European Project for Ice Coring in Antarctica Dome C (EDC96) ice core,
J. Geophys. Res.-Atmos., 110, 1–12,
https://doi.org/10.1029/2004JD005259, 2005.
Chisholm, W., Rosman, K. J. R., Boutron, C. F., Candelone, J. P., and Hong,
S.: Determination of lead isotopic ratios in Greenland and Antarctic snow
and ice at picogram per gram concentrations, Anal. Chim. Acta, 311,
141–151, https://doi.org/10.1016/0003-2670(95)00181-X, 1995.
Cole-Dai, J., Mosley-Thompson, E., and Thompson, L. G.: Annually resolved
southern hemisphere volcanic history from two Antarctic ice cores, J. Geophys. Res.-Atmos., 102, 16761–16771,
https://doi.org/10.1029/97jd01394, 1997.
Dansgaard, W.: Stable isotopes in precipitation, Tellus, 16, 436–468,
https://doi.org/10.1111/j.2153-3490.1964.tb00181.x, 1964.
Dansgaard, W. and Johnsen, S.: A flow model and a time scale for the ice
core from Camp Century, Greenland, J. Glaciol., 8, 215–223, 1969.
DeConto, R. M. and Pollard, D.: Contribution of Antarctica to past and
future sea-level rise, Nature, 531, 591–597,
https://doi.org/10.1038/nature17145, 2016.
de Leeuw, G., Andreas, E. L., Anguelova, M. D., Fairall, C. W., Lewis, E.
R., O'Dowd, C., Schulz, M., and Schwartz, S. E.: Production flux of sea salt
aerosol, Rev. Geophys., 49, Rg2001, https://doi.org/10.1029/2010RG000349, 2011.
Delmas, R. J., Legrand, M., Aristarain, A. J., and Zanolini, F.: Volcanic
deposits in Antarctic snow and ice., J. Geophys. Res.,
90, 12901–12920, https://doi.org/10.1029/JD090iD07p12901, 1985.
Delmonte, B., Petit, J., and Maggi, V.: Glacial to Holocene implications of
the new 27000-year dust record from the EPICA Dome C (East Antarctica) ice
core, Clim. Dynam., 18, 647–660,
https://doi.org/10.1007/s00382-001-0193-9, 2002.
Dibb, J. E., Talbot, R. W., Munger, J. W., Jacob, D. J., and Fan, S. M.:
Air-snow exchange of HNO3 and NOy at Summit, Greenland, J.
Geophys. Res.-Atmos., 103, 3475–3486,
https://doi.org/10.1029/97JD03132, 1998.
Epstein, S. and Mayeda, T.: Variation of O18 content of waters from natural
sources, Geochim. Cosmochim. Acta, 4, 213–224,
https://doi.org/10.1016/0016-7037(53)90051-9, 1953.
Erbland, J., Vicars, W. C., Savarino, J., Morin, S., Frey, M. M., Frosini, D., Vince, E., and Martins, J. M. F.: Air–snow transfer of nitrate on the East Antarctic Plateau – Part 1: Isotopic evidence for a photolytically driven dynamic equilibrium in summer, Atmos. Chem. Phys., 13, 6403–6419, https://doi.org/10.5194/acp-13-6403-2013, 2013.
Extier, T., Landais, A., Bréant, C., Prié, F., Bazin, L., Dreyfus,
G., Roche, D. M., and Leuenberger, M.: On the use of δ18Oatm for ice
core dating, Quaternary Sci. Rev., 185, 244–257,
https://doi.org/10.1016/j.quascirev.2018.02.008, 2018.
Fischer, H., Fundel, F., Ruth, U., Twarloh, B., Wegner, A., Udisti, R.,
Becagli, S., Castellano, E., Morganti, A., Severi, M., Wolff, E., Littot,
G., Röthlisberger, R., Mulvaney, R., Hutterli, M. A., Kaufmann, P.,
Federer, U., Lambert, F., Bigler, M., Hansson, M., Jonsell, U., de Angelis,
M., Boutron, C., Siggaard-Andersen, M. L., Steffensen, J. P., Barbante, C.,
Gaspari, V., Gabrielli, P., and Wagenbach, D.: Reconstruction of millennial
changes in dust emission, transport and regional sea ice coverage using the
deep EPICA ice cores from the Atlantic and Indian Ocean sector of
Antarctica, Earth Planet. Sc. Lett., 260, 340–354,
https://doi.org/10.1016/j.epsl.2007.06.014, 2007.
Fretwell, P., Pritchard, H. D., Vaughan, D. G., Bamber, J. L., Barrand, N. E., Bell, R., Bianchi, C., Bingham, R. G., Blankenship, D. D., Casassa, G., Catania, G., Callens, D., Conway, H., Cook, A. J., Corr, H. F. J., Damaske, D., Damm, V., Ferraccioli, F., Forsberg, R., Fujita, S., Gim, Y., Gogineni, P., Griggs, J. A., Hindmarsh, R. C. A., Holmlund, P., Holt, J. W., Jacobel, R. W., Jenkins, A., Jokat, W., Jordan, T., King, E. C., Kohler, J., Krabill, W., Riger-Kusk, M., Langley, K. A., Leitchenkov, G., Leuschen, C., Luyendyk, B. P., Matsuoka, K., Mouginot, J., Nitsche, F. O., Nogi, Y., Nost, O. A., Popov, S. V., Rignot, E., Rippin, D. M., Rivera, A., Roberts, J., Ross, N., Siegert, M. J., Smith, A. M., Steinhage, D., Studinger, M., Sun, B., Tinto, B. K., Welch, B. C., Wilson, D., Young, D. A., Xiangbin, C., and Zirizzotti, A.: Bedmap2: improved ice bed, surface and thickness datasets for Antarctica, The Cryosphere, 7, 375–393, https://doi.org/10.5194/tc-7-375-2013, 2013.
Frezzotti, M., Urbini, S., Proposito, M., Scarchilli, C., and Gandolfi, S.:
Spatial and temporal variability of surface mass balance near Talos Dome,
East Antarctica, J. Geophys. Res.-Earth, 112, F02032,
https://doi.org/10.1029/2006JF000638, 2007.
Frezzotti, M., Scarchilli, C., Becagli, S., Proposito, M., and Urbini, S.: A synthesis of the Antarctic surface mass balance during the last 800 yr, The Cryosphere, 7, 303–319, https://doi.org/10.5194/tc-7-303-2013, 2013.
Gondwe, M., Krol, M., Gieskes, W., Klaassen, W., and de Baar, H.: The
contribution of ocean-leaving DMS to the global atmospheric burdens of DMS,
MSA, SO2, and NSS SO
Grannas, A. M., Jones, A. E., Dibb, J., Ammann, M., Anastasio, C., Beine, H. J., Bergin, M., Bottenheim, J., Boxe, C. S., Carver, G., Chen, G., Crawford, J. H., Dominé, F., Frey, M. M., Guzmán, M. I., Heard, D. E., Helmig, D., Hoffmann, M. R., Honrath, R. E., Huey, L. G., Hutterli, M., Jacobi, H. W., Klán, P., Lefer, B., McConnell, J., Plane, J., Sander, R., Savarino, J., Shepson, P. B., Simpson, W. R., Sodeau, J. R., von Glasow, R., Weller, R., Wolff, E. W., and Zhu, T.: An overview of snow photochemistry: evidence, mechanisms and impacts, Atmos. Chem. Phys., 7, 4329–4373, https://doi.org/10.5194/acp-7-4329-2007, 2007.
Greene, C. A., Gwyther, D. E., and Blankenship, D. D.: Antarctic Mapping Tools
for Matlab, Comput. Geosci., 104, 151–157, 2017.
Hammer, C. U.: Acidity of Polar Ice Cores in Relation to Absolute Dating,
Past Volcanism, and Radio–Echoes, J. Glaciol., 25, 359–372,
1980.
Hastings, M. G., Sigman, D. M., and Steig, E. J.: Glacial/interglacial
changes in the isotopes of nitrate from the Greenland Ice Sheet Project 2
(GISP2) ice core, Global Biogeochem. Cy., 19, GB4024,
https://doi.org/10.1029/2005GB002502, 2005.
Herron, M. M. and Langway, C. C.: Dating of Ross Ice Shelf Core by chemical
analysis, J. Glaciol., 24, 345–357, https://doi.org/10.3189/s0022143000014866, 1979.
Hwang, H., Hur, S. D., Lee, J., Han, Y., Hong, S., and Motoyama, H.:
Plutonium fallout reconstructed from an Antarctic Plateau snowpack using
inductively coupled plasma sector field mass spectrometry, Sci.
Tot. Environ., 669, 505–511,
https://doi.org/10.1016/j.scitotenv.2019.03.105, 2019.
Igarashi, M., Nakai, Y., Motizuki, Y., Takahashi, K., Motoyama, H., and
Makishima, K.: Dating of the Dome Fuji shallow ice core based on a record of
volcanic eruptions from AD 1260 to AD 2001, Polar Sci., 5, 411–420,
https://doi.org/10.1016/j.polar.2011.08.001, 2011.
Jones, J. M., Gille, S. T., Goosse, H., Abram, N. J., Canziani, P. O.,
Charman, D. J., Clem, K. R., Crosta, X., de Lavergne, C., Eisenman, I.,
England, M. H., Fogt, R. L., Frankcombe, L. M., Marshall, G. J.,
Masson-Delmotte, V., Morrison, A. K., Orsi, A. J., Raphael, M. N., Renwick,
J. A., Schneider, D. P., Simpkins, G. R., Steig, E. J., Stenni, B.,
Swingedouw, D., and Vance, T. R.: Assessing recent trends in high-latitude
Southern Hemisphere surface climate, Nat. Clim. Change, 6, 917–926,
https://doi.org/10.1038/nclimate3103, 2016.
Kellerhals, T., Tobler, L., Brütsch, S., Sigl, M.,
Wacker, L., Gaäggeler, H. W., and Schwikowski, M.: Thallium
as a Tracer for Preindustrial Volcanic Eruptions in an Ice Core Record from
Illimani, Bolivia, Environ. Sci. Technol., 44, 888–893,
https://doi.org/10.1021/es902492n, 2010.
Krinner, G., Magand, O., Simmonds, I., Genthon, C., and Dufresne, J. L.:
Simulated Antarctic precipitation and surface mass balance at the end of the
twentieth and twenty-first centuries, Clim. Dynam., 28, 215–230,
https://doi.org/10.1007/s00382-006-0177-x, 2007.
Legrand, M. R. and Delmas, R. J.: The ionic balance of Antarctic snow: A
10-year detailed record, Atmos. Environ., 18, 1867–1874, 1984.
Legrand, M., Wolff, E., and Wagenbach, D.: Antarctic aerosol and snowfall
chemistry: implications for deep Antarctic ice-core chemistry, Ann. Glac., 29, 66–72, 1999.
Magand, O., Frezzotti, M., Pourchet, M., Stenni, B., Genoni, L., and Fily,
M.: Climate variability along latitudinal and longitudinal transects in East
Antarctica, Ann. Glaciol., 39, 351–358, 2004.
Maupetit, F. and Delmas, R. J.: Chemical composition of Falling Snow at
Dumont D'Urville, Antarctica, J. Atmos. Chem., 14, 31–42,
1992.
Morganti, A., Becagli, S., Castellano, E., Severi, M., Traversi, R., and
Udisti, R.: An improved flow analysis-ion chromatography method for
determination of cationic and anionic species at trace levels in Antarctic
ice cores, Anal. Chim. Acta, 603, 190–198,
https://doi.org/10.1016/j.aca.2007.09.050, 2007.
Mulvaney, R. and Wolff, E. W.: Spatial variability of the major chemistry of
the Antarctic ice sheet, Ann. Glaciol., 20, 440–447,
https://doi.org/10.3189/1994aog20-1-440-447, 1994.
Mulvaney, R., Wagenbach, D., and Wolff, E. W.: Postdepositional change in
snowpack nitrate from observation of year-round near-surface snow in coastal
Antarctica, J. Geophys. Res.-Atmos., 103,
11021–11031, 1998.
Narcisi, B. and Petit, J. R.: Englacial tephras of East Antarctica, edited
by: Smellie, J., Panter, K., and Geyer, A., Geological Society, London, Memoirs, 55, 649-664, https://doi.org/10.1144/M55-2018-86, 2021.
Narcisi, B., Proposito, M., and Frezzotti, M.: Ice record of a 13th century
explosive volcanic eruption in northern Victoria Land, East Antarctica,
Antarct. Sci., 13, 174–181,
https://doi.org/10.1017/S0954102001000268, 2001.
Narcisi, B., Petit, J. R., Delmonte, B., Scarchilli, C., and Stenni, B.: A
16,000-yr tephra framework for the Antarctic ice sheet: A contribution from
the new Talos Dome core, Quaternary Sci. Rev., 49, 52–63,
https://doi.org/10.1016/j.quascirev.2012.06.011, 2012.
Nardin, R., Amore, A., Becagli, S., Caiazzo, L., Frezzotti, M., Severi, M.,
Stenni, B., and Traversi, R.: Volcanic Fluxes Over the Last Millennium as
Recorded in the GV7 Ice Core (Northern Victoria Land, Antarctica),
Geosciences, 10, 38, https://doi.org/10.3390/geosciences10010038, 2020.
Neukom, R., Schurer, A. P., Steiger, Nathan. J., and Hegerl, G. C.: Possible
causes of data model discrepancy in the temperature history of the last
Millennium, Sci. Rep.-Uk, 8, 7572,
https://doi.org/10.1038/s41598-018-25862-2, 2018.
Nozaki, Y.: A fresh look at element distribution in the North Pacific Ocean,
Eos, 78, 221, https://doi.org/10.1029/97eo00148, 1997.
Nyamgerel, Y., Han, Y., Kim, S., Hong, S.-B., Lee, J., and Hur, S.:
Chronological characteristics for snow accumulation on Styx Glacier in
northern Victoria Land, Antarctica, J. Glaciol., 66, 916–926,
https://doi.org/10.1017/jog.2020.53, 2020.
Pasteris, D. R., McConnell, J. R., Das, S. B., Criscitiello, A. S., Evans,
M. J., Maselli, O. J., Sigl, M., and Layman, L.: Seasonally resolved ice core
records from West Antarctica indicate a sea ice source of sea-salt aerosol
and a biomass burning source of ammonium, J. Geophys. Res.,
119, 9168–9182, https://doi.org/10.1002/2013JD020720, 2014.
Piccardi, G., Udisti, R., and Casella, F.: Seasonal trends and chemical
composition of snow at terra nova bay (antarctica), Int. J. Environ. An. Ch., 55, 219–234,
https://doi.org/10.1080/03067319408026220, 1994.
Rasmussen, S. O., Andersen, K. K., Svensson, A. M., Steffensen, J. P.,
Vinther, B. M., Clausen, H. B., Siggaard-Andersen, M. L., Johnsen, S. J.,
Larsen, L. B., Dahl-Jensen, D., Bigler, M., Röthlisberger, R., Fischer,
H., Goto-Azuma, K., Hansson, M. E., and Ruth, U.: A new Greenland ice core
chronology for the last glacial termination, J. Geophys. Res.-Atmos., 111, D06102, https://doi.org/10.1029/2005JD006079, 2006.
Roberts, J., Plummer, C., Vance, T., van Ommen, T., Moy, A., Poynter, S., Treverrow, A., Curran, M., and George, S.: A 2000-year annual record of snow accumulation rates for Law Dome, East Antarctica, Clim. Past, 11, 697–707, https://doi.org/10.5194/cp-11-697-2015, 2015.
Röthlisberger, R., Hutterli, M. A., Sommer, S., Wolff, E. W., and
Mulvaney, R.: Factors controlling nitrate in ice cores: Evidence from the
Dome C deep ice core, J. Geophys. Res.-Atmos., 105,
20565–20572, https://doi.org/10.1029/2000JD900264, 2000.
Röthlisberger, R., Hutterli, M. A., Wolff, E. W., Mulvaney, R., Fischer,
H., Bigler, M., Goto-Azuma, K., Hansson, M. E., Ruth, U., Siggaard-Andersen,
M.-L., and Steffensen, J. P.: Nitrate in Greenland and Antarctic ice cores: a
detailed description of post-depositional processes, Ann. Glaciol.,
35, 209–216, 2002.
Scarchilli, C., Frezzotti, M., and Ruti, P. M.: Snow precipitation at four
ice core sites in East Antarctica: provenance, seasonality and blocking
factors, Clim. Dynam., 37, 2107–2125,
https://doi.org/10.1007/s00382-010-0946-4, 2011.
Severi, M., Becagli, S., Castellano, E., Morganti, A., Traversi, R., Udisti, R., Ruth, U., Fischer, H., Huybrechts, P., Wolff, E., Parrenin, F., Kaufmann, P., Lambert, F., and Steffensen, J. P.: Synchronisation of the EDML and EDC ice cores for the last 52 kyr by volcanic signature matching, Clim. Past, 3, 367–374, https://doi.org/10.5194/cp-3-367-2007, 2007.
Severi, M., Udisti, R., Becagli, S., Stenni, B., and Traversi, R.: Volcanic synchronisation of the EPICA-DC and TALDICE ice cores for the last 42 kyr BP, Clim. Past, 8, 509–517, https://doi.org/10.5194/cp-8-509-2012, 2012.
Shi, G., Chai, J., Zhu, Z., Hu, Z., Chen, Z., Yu, J., Ma, T., Ma, H., An,
C., Jiang, S., Tang, X., and Hastings, M. G.: Isotope Fractionation of Nitrate
During Volatilization in Snow: A Field Investigation in Antarctica,
Geophys. Res. Lett., 46, 3287–3297, https://doi.org/10.1029/2019GL081968, 2015.
Sigl, M., McConnell, J. R., Layman, L., Maselli, O., McGwire, K., Pasteris,
D., Dahl-Jensen, D., Steffensen, J. P., Vinther, B., Edwards, R., Mulvaney,
R., and Kipfstuhl, S.: A new bipolar ice core record of volcanism from WAIS
Divide and NEEM and implications for climate forcing of the last 2000 years,
J. Geophys. Res.-Atmos., 118, 1151–1169,
https://doi.org/10.1029/2012JD018603, 2013.
Sigl, M., Winstrup, M., McConnell, J. R., Welten, K. C., Plunkett, G.,
Ludlow, F., Büntgen, U., Caffee, M., Chellman, N., Dahl-Jensen, D.,
Fischer, H., Kipfstuhl, S., Kostick, C., Maselli, O. J., Mekhaldi, F.,
Mulvaney, R., Muscheler, R., Pasteris, D. R., Pilcher, J. R., Salzer, M.,
Schüpbach, S., Steffensen, J. P., Vinther, B. M., and Woodruff, T. E.:
Timing and climate forcing of volcanic eruptions for the past 2,500 years,
Nature, 523, 543–549, https://doi.org/10.1038/nature14565, 2015.
Sigl, M., Fudge, T. J., Winstrup, M., Cole-Dai, J., Ferris, D., McConnell, J. R., Taylor, K. C., Welten, K. C., Woodruff, T. E., Adolphi, F., Bisiaux, M., Brook, E. J., Buizert, C., Caffee, M. W., Dunbar, N. W., Edwards, R., Geng, L., Iverson, N., Koffman, B., Layman, L., Maselli, O. J., McGwire, K., Muscheler, R., Nishiizumi, K., Pasteris, D. R., Rhodes, R. H., and Sowers, T. A.: The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP), Clim. Past, 12, 769–786, https://doi.org/10.5194/cp-12-769-2016, 2016.
Sodemann, H. and Stohl, A.: Asymmetries in the moisture origin of Antarctic
precipitation, Geophys. Res. Lett., 36, L22803,
https://doi.org/10.1029/2009GL040242, 2009.
Stefels, J., Steinke, M., Turner, S., Malin, G., and Belviso, S.:
Environmental constraints on the production and removal of the climatically
active gas dimethylsulphide (DMS) and implications for ecosystem modelling,
Biogeochemistry, 83, 245–275, https://doi.org/10.1007/s10533-007-9091-5,
2007.
Stenni, B., Masson-Delmotte, V., Johnsen, S. J., Jouzel, J., Longinelli, A.,
Monnin, E., Rothlisberger, R., and Selmo, E.: An Oceanic Cold Reversal During
the Last Deglaciation, Science, 293, 2074–2077, 2001.
Stenni, B., Proposito, M., Gragnani, R., Flora, O., Jouzel, J., Falourd, S.,
and Frezzotti, M.: Eight centuries of volcanic signal and climate change at
Talos Dome (East Antarctica), J. Geophys. Res.-Atmos., 107, 4076, https://doi.org/10.1029/2000jd000317, 2002.
Tao, G., Yamada, R., Fujikawa, Y., Kudo, A., Zheng, J., Fisher, D. A., and
Koerner, R. M.: Determination of trace amounts of heavy metals in arctic ice
core samples using inductively coupled plasma mass spectrometry, Talanta,
55, 765–772, https://doi.org/10.1016/s0039-9140(01)00509-4, 2001.
Thomas, E. R., Wolff, E. W., Mulvaney, R., Steffensen, J. P., Johnsen, S.
J., Arrowsmith, C., White, J. W. C., Vaughn, B., and Popp, T.: The 8.2 ka
event from Greenland ice cores, Quaternary Sci. Rev., 26,
70–81, https://doi.org/10.1016/j.quascirev.2006.07.017, 2007.
Thomas, E. R., van Wessem, J. M., Roberts, J., Isaksson, E., Schlosser, E., Fudge, T. J., Vallelonga, P., Medley, B., Lenaerts, J., Bertler, N., van den Broeke, M. R., Dixon, D. A., Frezzotti, M., Stenni, B., Curran, M., and Ekaykin, A. A.: Regional Antarctic snow accumulation over the past 1000 years, Clim. Past, 13, 1491–1513, https://doi.org/10.5194/cp-13-1491-2017, 2017.
Tomé, A. and Miranda, P. M. A.: Piecewise linear fitting and trend
changing points of climate parameters, Geophys. Res. Lett., 31,
L02207, https://doi.org/10.1029/2003GL019100, 2004.
Traufetter, F., Oerter, H., Fischer, H., Weller, R., and Miller, H.:
Spatio-temporal variability in volcanic sulphate deposition over the past 2
kyr in snow pits and firn cores from Amundsenisen, Antarctica, J.
Glaciol., 50, 137–146, 2004.
Traversi, R., Usoskin, I. G., Solanki, S. K., Becagli, S., Frezzotti, M.,
Severi, M., Stenni, B., and Udisti, R.: Nitrate in Polar Ice: A New Tracer of
Solar Variability, Sol. Phys., 280, 237–254,
https://doi.org/10.1007/s11207-012-0060-3, 2012.
Udisti, R.: Multiparametric approach for chemical dating of snow layers from
Antarctica, Int. J. Environ. Anal. Chem.,
63, 225–244, https://doi.org/10.1080/03067319608026268, 1996.
Udisti, R., Dayan, U., Becagli, S., Busetto, M., Frosini, D., Legrand, M.,
Lucarelli, F., Preunkert, S., Severi, M., Traversi, R., and Vitale, V.: Sea
spray aerosol in central Antarctica. Present atmospheric behaviour and
implications for paleoclimatic reconstructions, Atmos. Environ., 52,
109–120, https://doi.org/10.1016/j.atmosenv.2011.10.018, 2012.
Vance, T. R., Roberts, J. L., Plummer, C. T., Kiem, A. S., and van Ommen, T. D.:
Inderdecadal Pacific variability and eastern Australian megadroughts over
the last millennium, Geophys. Res. Lett., 42, 129–137, 2015.
Van Ommen, T. and Morgan, V.: Snowfall increase in coastal East Antarctica
linked with southwest Western Australian drought, Nat. Geosci., 3,
267–272, 2010.
Van Ommen, T., Morgan, V., and Curran, M.: Declacial and Holocene changes in
accumulation at Law Dome, East Antarctica, Ann. Glaciol., 39,
359–365, 2004.
Watanabe, O., Kamiyama, K., Motoyama, H., Fujii, Y., Shoji, H., and Satow, K.: The paleoclimate record in
the ice core at Dome Fuji station, East Antarctica, Ann. Glaciol., 29, 176–178, https://doi.org/10.3189/172756499781821553, 1999.
Weller, R., Wagenbach, D., Legrand, M., Elsässer, C., Tian-Kunze, X., and
König-Langlo, G.: Continuous 25-yr aerosol records at coastal Antarctica
– I: Inter-annual variability of ionic compounds links to climate indices,
Tellus B, 63, 901–919,
https://doi.org/10.1111/j.1600-0889.2011.00542.x, 2011.
Winski, D. A., Fudge, T. J., Ferris, D. G., Osterberg, E. C., Fegyveresi, J. M., Cole-Dai, J., Thundercloud, Z., Cox, T. S., Kreutz, K. J., Ortman, N., Buizert, C., Epifanio, J., Brook, E. J., Beaudette, R., Severinghaus, J., Sowers, T., Steig, E. J., Kahle, E. C., Jones, T. R., Morris, V., Aydin, M., Nicewonger, M. R., Casey, K. A., Alley, R. B., Waddington, E. D., Iverson, N. A., Dunbar, N. W., Bay, R. C., Souney, J. M., Sigl, M., and McConnell, J. R.: The SP19 chronology for the South Pole Ice Core – Part 1: volcanic matching and annual layer counting, Clim. Past, 15, 1793–1808, https://doi.org/10.5194/cp-15-1793-2019, 2019.
Winstrup, M., Svensson, A. M., Rasmussen, S. O., Winther, O., Steig, E. J., and Axelrod, A. E.: An automated approach for annual layer counting in ice cores, Clim. Past, 8, 1881–1895, https://doi.org/10.5194/cp-8-1881-2012, 2012.
Winstrup, M., Vallelonga, P., Kjær, H. A., Fudge, T. J., Lee, J. E., Riis, M. H., Edwards, R., Bertler, N. A. N., Blunier, T., Brook, E. J., Buizert, C., Ciobanu, G., Conway, H., Dahl-Jensen, D., Ellis, A., Emanuelsson, B. D., Hindmarsh, R. C. A., Keller, E. D., Kurbatov, A. V., Mayewski, P. A., Neff, P. D., Pyne, R. L., Simonsen, M. F., Svensson, A., Tuohy, A., Waddington, E. D., and Wheatley, S.: A 2700-year annual timescale and accumulation history for an ice core from Roosevelt Island, West Antarctica, Clim. Past, 15, 751–779, https://doi.org/10.5194/cp-15-751-2019, 2019.
Wolff, E. W.: Nitrate in Polar Ice, in: Ice Core Studies of Global
Biogeochemical Cycles, Springer Berlin Heidelberg, Berlin, Heidelberg,
https://doi.org/10.1007/978-3-642-51172-1_10, 1995.
Wolff, E. W.: Ice sheets and nitrogen, Philos. T.
Roy. Soc. London B, 368, 20130127,
https://doi.org/10.1098/rstb.2013.0127, 2013.
Wolff, E. W., Barbante, C., Becagli, S., Bigler, M., Boutron, C. F.,
Castellano, E., de Angelis, M., Federer, U., Fischer, H., Fundel, F.,
Hansson, M., Hutterli, M., Jonsell, U., Karlin, T., Kaufmann, P., Lambert,
F., Littot, G. C., Mulvaney, R., Röthlisberger, R., Ruth, U., Severi,
M., Siggaard-Andersen, M. L., Sime, L. C., Steffensen, J. P., Stocker, T.
F., Traversi, R., Twarloh, B., Udisti, R., Wagenbach, D., and Wegner, A.:
Changes in environment over the last 800,000 years from chemical analysis of
the EPICA Dome C ice core, Quaternary Sci. Rev., 29, 285–295,
https://doi.org/10.1016/j.quascirev.2009.06.013, 2010.
Zatko, M., Geng, L., Alexander, B., Sofen, E., and Klein, K.: The impact of snow nitrate photolysis on boundary layer chemistry and the recycling and redistribution of reactive nitrogen across Antarctica and Greenland in a global chemical transport model, Atmos. Chem. Phys., 16, 2819–2842, https://doi.org/10.5194/acp-16-2819-2016, 2016.
Zielinski, G. A., Mayewski, P. A., David Meeker, L., Whitlow, S., and
Twickler, M. S.: A 110,000-Yr Record of Explosive Volcanism from the GISP2
(Greenland) Ice Core, Quaternary Res., 45, 109–118, 1996.
Short summary
The first step to exploit all the potential information buried in ice cores is to produce a reliable age scale. Based on chemical and isotopic records from the 197 m Antarctic GV7(B) ice core, accurate dating was achieved and showed that the archive spans roughly the last 830 years. The relatively high accumulation rate allowed us to use the non-sea-salt sulfate seasonal pattern to count annual layers. The accumulation rate reconstruction exhibited a slight increase since the 18th century.
The first step to exploit all the potential information buried in ice cores is to produce a...
