Articles | Volume 15, issue 5
Research article 03 Sep 2019
Research article | 03 Sep 2019
Two millennia of Main region (southern Germany) hydroclimate variability
Alexander Land et al.
No articles found.
Phillip Papastefanou, Christian S. Zang, Zlatan Angelov, Aline Anderson de Castro, Juan Carlos Jimenez, Luiz Felipe Campos De Rezende, Romina Ruscica, Boris Sakschewski, Anna Sörensson, Kirsten Thonicke, Carolina Vera, Nicolas Viovy, Celso Von Randow, and Anja Rammig
Preprint under review for BG
Allan Buras, Anja Rammig, and Christian S. Zang
Biogeosciences, 17, 1655–1672,Short summary
This study compares the climatic conditions and ecosystem response of the extreme European drought of 2018 with the previous extreme drought of 2003. Using gridded climate data and satellite-based remote sensing information, our analyses qualify 2018 as the new European record drought with wide-ranging negative impacts on European ecosystems. Given the observation of forest-legacy effects in 2019 we call for Europe-wide forest monitoring to assess forest vulnerability to climate change.
Anja Rammig, Jens Heinke, Florian Hofhansl, Hans Verbeeck, Timothy R. Baker, Bradley Christoffersen, Philippe Ciais, Hannes De Deurwaerder, Katrin Fleischer, David Galbraith, Matthieu Guimberteau, Andreas Huth, Michelle Johnson, Bart Krujit, Fanny Langerwisch, Patrick Meir, Phillip Papastefanou, Gilvan Sampaio, Kirsten Thonicke, Celso von Randow, Christian Zang, and Edna Rödig
Geosci. Model Dev., 11, 5203–5215,Short summary
We propose a generic approach for a pixel-to-point comparison applicable for evaluation of models and remote-sensing products. We provide statistical measures accounting for the uncertainty in ecosystem variables. We demonstrate our approach by comparing simulated values of aboveground biomass, woody productivity and residence time of woody biomass from four dynamic global vegetation models (DGVMs) with measured inventory data from permanent plots in the Amazon rainforest.
X. Wu, F. Babst, P. Ciais, D. Frank, M. Reichstein, M. Wattenbach, C. Zang, and M. D. Mahecha
Biogeosciences, 11, 3057–3068,
Related subject area
Subject: Proxy Use-Development-Validation | Archive: Terrestrial Archives | Timescale: HoloceneWinter–spring warming in the North Atlantic during the last 2000 years: evidence from southwest IcelandClimate reconstructions based on GDGT and pollen surface datasets from Mongolia and Baikal area: calibrations and applicability to extremely cold–dry environments over the Late HoloceneSampling density and date along with species selection influence spatial representation of tree-ring reconstructionsClimatic variations during the Holocene inferred from radiocarbon and stable carbon isotopes in a high-alpine caveChanges in high-intensity precipitation on the northern Apennines (Italy) as revealed by multidisciplinary data over the last 9000 yearsNeoglacial trends in diatom dynamics from a small alpine lake in the Qinling mountains of central ChinaCentennial- to millennial-scale monsoon changes since the last deglaciation linked to solar activities and North Atlantic coolingAlgal lipids reveal unprecedented warming rates in alpine areas of SW Europe during the industrial periodReconstructing seasonality through stable-isotope and trace-element analyses of the Proserpine stalagmite, Han-sur-Lesse cave, Belgium: indications for climate-driven changes during the last 400 yearsCombining a pollen and macrofossil synthesis with climate simulations for spatial reconstructions of European climate using Bayesian filteringLignin oxidation products as a potential proxy for vegetation and environmental changes in speleothems and cave drip water – a first record from the Herbstlabyrinth, central GermanyHow dry was the Younger Dryas? Evidence from a coupled δ2H–δ18O biomarker paleohygrometer applied to the Gemündener Maar sediments, Western Eifel, GermanySiberian tree-ring and stable isotope proxies as indicators of temperature and moisture changes after major stratospheric volcanic eruptionsThe 4.2 ka BP Event in the Mediterranean region: an overviewTechnical note: Optimizing the utility of combined GPR, OSL, and Lidar (GOaL) to extract paleoenvironmental records and decipher shoreline evolutionThe onset of neoglaciation in Iceland and the 4.2 ka eventHydroclimatic variations in southeastern China during the 4.2 ka event reflected by stalagmite recordsFire, vegetation, and Holocene climate in a southeastern Tibetan lake: a multi-biomarker reconstruction from Paru CoClimate impact on the development of Pre-Classic Maya civilisationSynchronizing 10Be in two varved lake sediment records to IntCal13 14C during three grand solar minimaTechnical note: Open-paleo-data implementation pilot – the PAGES 2k special issueA chironomid-based record of temperature variability during the past 4000 years in northern China and its possible societal implicationsInsights into Atlantic multidecadal variability using the Last Millennium Reanalysis frameworkThree distinct Holocene intervals of stalagmite deposition and nondeposition revealed in NW Madagascar, and their paleoclimate implicationsExamining bias in pollen-based quantitative climate reconstructions induced by human impact on vegetation in ChinaA dual-biomarker approach for quantification of changes in relative humidity from sedimentary lipid D∕H ratiosPseudo-proxy tests of the analogue method to reconstruct spatially resolved global temperature during the Common EraDevelopment and evaluation of a system of proxy data assimilation for paleoclimate reconstructionA chironomid-based mean July temperature inference model from the south-east margin of the Tibetan Plateau, ChinaAssessing performance and seasonal bias of pollen-based climate reconstructions in a perfect model worldQuantitative reconstruction of summer precipitation using a mid-Holocene δ13C common millet record from Guanzhong Basin, northern ChinaNorth Atlantic Oscillation controls on oxygen and hydrogen isotope gradients in winter precipitation across Europe; implications for palaeoclimate studiesA 368-year maximum temperature reconstruction based on tree-ring data in the northwestern Sichuan Plateau (NWSP), ChinaInferring late-Holocene climate in the Ecuadorian Andes using a chironomid-based temperature inference modelA high-altitude peatland record of environmental changes in the NW Argentine Andes (24 ° S) over the last 2100 yearsTechnical note: The Linked Paleo Data framework – a common tongue for paleoclimatologyA Bayesian hierarchical model for reconstructing relative sea level: from raw data to rates of changeInferring climate variability from nonlinear proxies: application to palaeo-ENSO studiesTechnical Note: How accurate can stalagmite formation temperatures be determined using vapour bubble radius measurements in fluid inclusions?High-resolution leaf wax carbon and hydrogen isotopic record of the late Holocene paleoclimate in arid Central AsiaArctic Holocene proxy climate database – new approaches to assessing geochronological accuracy and encoding climate variablesTesting long-term summer temperature reconstruction based on maximum density chronologies obtained by reanalysis of tree-ring data sets from northernmost Sweden and FinlandConstraining Holocene hydrological changes in the Carpathian–Balkan region using speleothem δ18O and pollen-based temperature reconstructionsSediment transport processes across the Tibetan Plateau inferred from robust grain-size end members in lake sedimentsSimilarity estimators for irregular and age-uncertain time seriesMid- and late Holocene dust deposition in western Europe: the Misten peat bog (Hautes Fagnes – Belgium)A mid-Holocene climate reconstruction for eastern South AmericaNorth–south palaeohydrological contrasts in the central Mediterranean during the Holocene: tentative synthesis and working hypothesesLate Neolithic Mondsee Culture in Austria: living on lakes and living with flood risk?Tree-ring–based summer mean temperature variations in the Adamello–Presanella Group (Italian Central Alps), 1610–2008 AD
Nora Richter, James M. Russell, Johanna Garfinkel, and Yongsong Huang
Clim. Past, 17, 1363–1383,Short summary
We present a reconstruction of winter–spring temperatures developed using organic proxies preserved in well-dated lake sediments from southwest Iceland to assess seasonal temperature changes in the North Atlantic region over the last 2000 years. The gradual warming trend observed in our record is likely influenced by sea surface temperatures, which are sensitive to changes in ocean circulation and seasonal insolation, during the winter and spring season.
Lucas Dugerdil, Sébastien Joannin, Odile Peyron, Isabelle Jouffroy-Bapicot, Boris Vannière, Bazartseren Boldgiv, Julia Unkelbach, Hermann Behling, and Guillemette Ménot
Clim. Past, 17, 1199–1226,Short summary
Since the understanding of Holocene climate change appears to be a relevant issue for future climate change, the paleoclimate calibrations have to be improved. Here, surface samples from Mongolia and Siberia were analyzed to provide new calibrations for pollen and biomarker climate models. These calibrations appear to be more powerful than global calibrations, especially in an arid central Asian context. These calibrations will improve the understanding of monsoon Holocene oscillations.
Justin T. Maxwell, Grant L. Harley, Trevis J. Matheus, Brandon M. Strange, Kayla Van Aken, Tsun Fung Au, and Joshua C. Bregy
Clim. Past, 16, 1901–1916,Short summary
We found that increasing the density of chronologies in the tree-ring network resulted in estimated soil moisture conditions that better matched the spatial variability of the values that were instrumentally recorded for droughts and, to a lesser extent, pluvials. By sampling trees in 2010 compared to 1980, the sensitivity of tree rings to soil moisture decreased in the southern portion of our region, where severe drought conditions have been absent over recent decades.
Caroline Welte, Jens Fohlmeister, Melina Wertnik, Lukas Wacker, Bodo Hattendorf, Timothy I. Eglinton, and Christoph Spötl
Clim. Past Discuss.,
Revised manuscript accepted for CPShort summary
Stalagmites are valuable climate archives, but unlike other proxies the use of stable carbon (C) isotopes is still difficult. A stalagmite from the Austrian Alps was analyzed using a new laser ablation method for fast radiocarbon (14C) analysis. This allowed to combine 14C and stable C isotopes showing that gas exchange processes influence the stable C variations in that speleothem and besides soil and bedrock a third source is contributing during periods of warm, wet climate: old organic matter.
Stefano Segadelli, Federico Grazzini, Veronica Rossi, Margherita Aguzzi, Silvia Marvelli, Marco Marchesini, Alessandro Chelli, Roberto Francese, Maria Teresa De Nardo, and Sandro Nanni
Clim. Past, 16, 1547–1564,Short summary
In an attempt to consolidate trends in the hydrological cycle induced by recent warming, we conducted a multidisciplinary study combining meteorological data, climate proxies from the literature, and original coring and pollen data acquired in an area that has been hit by record-breaking precipitation events. A detailed study of recent flash-flood deposits compared with fossil peat bog and lake sediments supports the expected increase in precipitation intensity during warm climatic phases.
Bo Cheng, Jennifer Adams, Jianhui Chen, Aifeng Zhou, Qing Zhang, and Anson W. Mackay
Clim. Past, 16, 543–554,Short summary
The Qinling mountains in China are biodiversity rich. We studied one of the high-latitude lakes on Mount Taibai with a view to looking at how aquatic diversity responded to long-term changes in climate over the past 3500 years. We specifically looked at a group of single-celled algae called diatoms, as they are very sensitive to the environment. We found that these algae changed gradually over time, but they showed abrupt change during the period known as the Little Ice Age, about 400 years ago.
Xingxing Liu, Youbin Sun, Jef Vandenberghe, Peng Cheng, Xu Zhang, Evan J. Gowan, Gerrit Lohmann, and Zhisheng An
Clim. Past, 16, 315–324,Short summary
The East Asian summer monsoon and winter monsoon are anticorrelated on a centennial timescale during 16–1 ka. The centennial monsoon variability is connected to changes of both solar activity and North Atlantic cooling events during the Early Holocene. Then, North Atlantic cooling became the major forcing of events during the Late Holocene. This work presents the great challenge and potential to understand the response of the monsoon system to global climate changes in the past and the future.
Antonio García-Alix, Jaime L. Toney, Gonzalo Jiménez-Moreno, Carmen Pérez-Martínez, Laura Jiménez, Marta Rodrigo-Gámiz, R. Scott Anderson, Jon Camuera, Francisco J. Jiménez-Espejo, Dhais Peña-Angulo, and María J. Ramos-Román
Clim. Past, 16, 245–263,Short summary
In this paper we identify warming thresholds, rates, and forcing mechanisms from a novel alpine temperature record of the southern Iberian Peninsula during the Common Era in order to contextualize the modern warming and its potential impact on these vulnerable alpine ecosystems. To do so, we have developed and applied the first lacustrine temperature calibration in alpine lakes for algal compounds, called long-chain alkyl diols, which is a significant advance in biomarker paleothermometry.
Stef Vansteenberge, Niels J. de Winter, Matthias Sinnesael, Sophie Verheyden, Steven Goderis, Stijn J. M. Van Malderen, Frank Vanhaecke, and Philippe Claeys
Clim. Past, 16, 141–160,Short summary
We measured the chemical composition (trace-element concentrations and stable-isotope ratios) of a Belgian speleothem that deposited annual layers. Our sub-annual resolution dataset allows us to investigate how the chemistry of this speleothem recorded changes in the environment and climate in northwestern Europe. We then use this information to reconstruct climate change during the 16th and 17th century on the seasonal scale and demonstrate that environmental change drives speleothem chemistry.
Nils Weitzel, Andreas Hense, and Christian Ohlwein
Clim. Past, 15, 1275–1301,Short summary
A new method for probabilistic spatial reconstructions of past climate states is presented, which combines pollen data with a multi-model ensemble of climate simulations in a Bayesian framework. The approach is applied to reconstruct summer and winter temperature in Europe during the mid-Holocene. Our reconstructions account for multiple sources of uncertainty and are well suited for quantitative statistical analyses of the climate under different forcing conditions.
Inken Heidke, Denis Scholz, and Thorsten Hoffmann
Clim. Past, 15, 1025–1037,Short summary
This is the first quantitative study of lignin biomarkers in stalagmites and cave drip water. Lignin is only produced by higher plants; therefore, its analysis can be used to reconstruct the vegetation of the past. We compared our lignin results with stable isotope and trace element records from the same samples and found correlations or similarities with P, Ba, U and Mg concentrations as well as δ13C values. These results can help to better interpret other vegetation proxies.
Johannes Hepp, Lorenz Wüthrich, Tobias Bromm, Marcel Bliedtner, Imke Kathrin Schäfer, Bruno Glaser, Kazimierz Rozanski, Frank Sirocko, Roland Zech, and Michael Zech
Clim. Past, 15, 713–733,
Olga V. Churakova (Sidorova), Marina V. Fonti, Matthias Saurer, Sébastien Guillet, Christophe Corona, Patrick Fonti, Vladimir S. Myglan, Alexander V. Kirdyanov, Oksana V. Naumova, Dmitriy V. Ovchinnikov, Alexander V. Shashkin, Irina P. Panyushkina, Ulf Büntgen, Malcolm K. Hughes, Eugene A. Vaganov, Rolf T. W. Siegwolf, and Markus Stoffel
Clim. Past, 15, 685–700,Short summary
We present a unique dataset of multiple tree-ring and stable isotope parameters, representing temperature-sensitive Siberian ecotones, to assess climatic impacts after six large stratospheric volcanic eruptions at 535, 540, 1257, 1640, 1815, and 1991 CE. Besides the well-documented effects of temperature derived from tree-ring width and latewood density, stable carbon and oxygen isotopes in tree-ring cellulose provide information about moisture and sunshine duration changes after the events.
Monica Bini, Giovanni Zanchetta, Aurel Perşoiu, Rosine Cartier, Albert Català, Isabel Cacho, Jonathan R. Dean, Federico Di Rita, Russell N. Drysdale, Martin Finnè, Ilaria Isola, Bassem Jalali, Fabrizio Lirer, Donatella Magri, Alessia Masi, Leszek Marks, Anna Maria Mercuri, Odile Peyron, Laura Sadori, Marie-Alexandrine Sicre, Fabian Welc, Christoph Zielhofer, and Elodie Brisset
Clim. Past, 15, 555–577,Short summary
The Mediterranean region has returned some of the clearest evidence of a climatically dry period occurring approximately 4200 years ago. We reviewed selected proxies to infer regional climate patterns between 4.3 and 3.8 ka. Temperature data suggest a cooling anomaly, even if this is not uniform, whereas winter was drier, along with dry summers. However, some exceptions to this prevail, where wetter condition seems to have persisted, suggesting regional heterogeneity.
Amy J. Dougherty, Jeong-Heon Choi, Chris S. M. Turney, and Anthony Dosseto
Clim. Past, 15, 389–404,
Áslaug Geirsdóttir, Gifford H. Miller, John T. Andrews, David J. Harning, Leif S. Anderson, Christopher Florian, Darren J. Larsen, and Thor Thordarson
Clim. Past, 15, 25–40,Short summary
Compositing climate proxies in sediment from seven Iceland lakes documents abrupt summer cooling between 4.5 and 4.0 ka, statistically indistinguishable from 4.2 ka. Although the decline in summer insolation was an important factor, a combination of superposed changes in ocean circulation and explosive Icelandic volcanism were likely responsible for the abrupt perturbation recorded by our proxies. Lake and catchment proxies recovered to a colder equilibrium state following the perturbation.
Haiwei Zhang, Hai Cheng, Yanjun Cai, Christoph Spötl, Gayatri Kathayat, Ashish Sinha, R. Lawrence Edwards, and Liangcheng Tan
Clim. Past, 14, 1805–1817,Short summary
The collapses of several Neolithic cultures in China are considered to have been associated with abrupt climate change during the 4.2 ka BP event; however, the hydroclimate of this event in China is still poorly known. Based on stalagmite records from monsoonal China, we found that north China was dry but south China was wet during this event. We propose that the rain belt remained longer at its southern position, giving rise to a pronounced humidity gradient between north and south China.
Alice Callegaro, Dario Battistel, Natalie M. Kehrwald, Felipe Matsubara Pereira, Torben Kirchgeorg, Maria del Carmen Villoslada Hidalgo, Broxton W. Bird, and Carlo Barbante
Clim. Past, 14, 1543–1563,Short summary
Holocene fires and vegetation are reconstructed using different molecular markers with a single analytical method, applied for the first time to lake sediments from Tibet. The early Holocene shows oscillations between grasses and conifers, with smouldering fires represented by levoglucosan peaks, and high-temperature fires represented by PAHs. The lack of human FeSts excludes local human influence on fire and vegetation changes. Late Holocene displays an increase in local to regional combustion.
Kees Nooren, Wim Z. Hoek, Brian J. Dermody, Didier Galop, Sarah Metcalfe, Gerald Islebe, and Hans Middelkoop
Clim. Past, 14, 1253–1273,Short summary
We present two new palaeoclimatic records for the central Maya lowlands, adding valuable new insights to the impact of climate change on the development of Maya civilisation. Lake Tuspan's diatom record is indicative of precipitation changes at a local scale, while a beach ridge elevation record from the world's largest late Holocene beach ridge plain provides a regional picture.
Markus Czymzik, Raimund Muscheler, Florian Adolphi, Florian Mekhaldi, Nadine Dräger, Florian Ott, Michał Słowinski, Mirosław Błaszkiewicz, Ala Aldahan, Göran Possnert, and Achim Brauer
Clim. Past, 14, 687–696,Short summary
Our results provide a proof of concept for facilitating 10Be in varved lake sediments as a novel synchronization tool required for investigating leads and lags of proxy responses to climate variability. They also point to some limitations of 10Be in these archives mainly connected to in-lake sediment resuspension processes.
Darrell S. Kaufman and PAGES 2k special-issue editorial team
Clim. Past, 14, 593–600,Short summary
We explain the procedure used to attain a high and consistent level of data stewardship across a special issue of the journal Climate of the Past. We discuss the challenges related to (1) determining which data are essential for public archival, (2) using data generated by others, and (3) understanding data citations. We anticipate that open-data sharing in paleo sciences will accelerate as the advantages become more evident and as practices that reduce data loss become the accepted convention.
Haipeng Wang, Jianhui Chen, Shengda Zhang, David D. Zhang, Zongli Wang, Qinghai Xu, Shengqian Chen, Shijin Wang, Shichang Kang, and Fahu Chen
Clim. Past, 14, 383–396,Short summary
The chironomid-inferred temperature record from Gonghai Lake exhibits a stepwise decreasing trend since 4 ka. A cold event in the Era of Disunity, the Sui-Tang Warm Period, the Medieval Warm Period and the Little Ice Age can all be recognized in our record, as well as in many other temperature reconstructions in China. Local wars in Shanxi Province, documented in the historical literature during the past 2700 years, are statistically significantly correlated with changes in temperature.
Hansi K. A. Singh, Gregory J. Hakim, Robert Tardif, Julien Emile-Geay, and David C. Noone
Clim. Past, 14, 157–174,Short summary
The Atlantic Multidecadal Oscillation (AMO) is prominent in the climate system. We study the AMO over the last 2000 years using a novel proxy framework, the Last Millennium Reanalysis. We find that the AMO is linked to continental warming, Arctic sea ice retreat, and an Atlantic precipitation shift. Low clouds decrease globally. We find no distinct multidecadal spectral peak in the AMO over the last 2 millennia, suggesting that human activities may have enhanced the AMO in the modern era.
Ny Riavo Gilbertinie Voarintsoa, Loren Bruce Railsback, George Albert Brook, Lixin Wang, Gayatri Kathayat, Hai Cheng, Xianglei Li, Richard Lawrence Edwards, Amos Fety Michel Rakotondrazafy, and Marie Olga Madison Razanatseheno
Clim. Past, 13, 1771–1790,Short summary
This research has been an investigation of two stalagmites from two caves in NW Madagascar to reconstruct the region's paleoenvironmental changes, and to understand the linkage of such changes to the dynamics of the ITCZ. Stable isotopes, mineralogy, and petrography suggest wetter climate conditions than today during the early and late Holocene, when the mean ITCZ was south, and drier during the mid-Holocene when the ITCZ was north.
Wei Ding, Qinghai Xu, and Pavel E. Tarasov
Clim. Past, 13, 1285–1300,Short summary
Pollen-based past climate reconstruction for regions with long-term human occupation is always controversial. We examined the bias induced by the human impact on vegetation in a climate reconstruction for temperate eastern China by comparing the deviations in the reconstructed results for a fossil record based on two pollen–climate calibration sets. Climatic signals in pollen assemblages are indeed obscured by human impact; however, the extent of the bias could be assessed.
Oliver Rach, Ansgar Kahmen, Achim Brauer, and Dirk Sachse
Clim. Past, 13, 741–757,Short summary
Currently, reconstructions of past changes in the hydrological cycle are usually qualitative, which is a major drawback for testing the accuracy of models in predicting future responses. Here we present a proof of concept of a novel approach to deriving quantitative paleohydrological data, i.e. changes in relative humidity, from lacustrine sediment archives, employing a combination of organic geochemical methods and plant physiological modeling.
Juan José Gómez-Navarro, Eduardo Zorita, Christoph C. Raible, and Raphael Neukom
Clim. Past, 13, 629–648,Short summary
This contribution aims at assessing to what extent the analogue method, a classic technique used in other branches of meteorology and climatology, can be used to perform gridded reconstructions of annual temperature based on the limited information from available but un-calibrated proxies spread across different locations of the world. We conclude that it is indeed possible, albeit with certain limitations that render the method comparable to more classic techniques.
Atsushi Okazaki and Kei Yoshimura
Clim. Past, 13, 379–393,Short summary
Data assimilation has been successfully applied in the field of paleoclimatology to reconstruct past climate. However, data reconstructed from proxies have been assimilated, as opposed to the actual proxy values, which prevented full utilization of the information recorded in the proxies. This study propose a new data assimilation system in which actual proxy data are directly assimilated.
Enlou Zhang, Jie Chang, Yanmin Cao, Hongqu Tang, Pete Langdon, James Shulmeister, Rong Wang, Xiangdong Yang, and Ji Shen
Clim. Past, 13, 185–199,Short summary
This paper reports the first development of sub-fossil chironomid-based mean July temperature transfer functions from China. The transfer functions yield reliable reconstructions that are comparable to the instrumental record. The application of this new tool will provide long-term quantitative palaeoclimate estimates from south-western China which is a critical region for understanding the dynamic and evolution of the Indian Ocean south-west Monsoon system.
Kira Rehfeld, Mathias Trachsel, Richard J. Telford, and Thomas Laepple
Clim. Past, 12, 2255–2270,Short summary
Indirect evidence on past climate comes from the former composition of ecological communities such as plants, preserved as pollen grains in sediments of lakes. Transfer functions convert relative counts of species to a climatologically meaningful scale (e.g. annual mean temperature in degrees C). We show that the fundamental assumptions in the algorithms impact the reconstruction results in he idealized model world, in particular if the reconstructed variables were not ecologically relevant.
Qing Yang, Xiaoqiang Li, Xinying Zhou, Keliang Zhao, and Nan Sun
Clim. Past, 12, 2229–2240,Short summary
The fossilized seeds of common millet are suited to the production of quantitative Holocene precipitation reconstructions. Our reconstructed results showed that summer precipitation from 7.7–3.4 ka BP was ~ 50 mm, or 17 % higher than present levels. Maximal mean summer precipitation peaked at 414 mm during 6.1–5.5 ka BP, ~ 109 mm, or 36 % higher than today, indicating the EASM peaked at this time. This work can provide a new proxy for further research into continuous paleoprecipitation sequences.
Michael Deininger, Martin Werner, and Frank McDermott
Clim. Past, 12, 2127–2143,Short summary
This study investigates the NAO (Northern Atlantic Oscillation)-related mechanisms that control winter precipitation stable oxygen and hydrogen isotope gradients across Europe. The results show that past longitudinal stable oxygen and hydrogen isotope gradients in European rainfall stored in palaeoclimate archives (e.g. speleothems) can be used to infer the past winter NAO modes from its variations.
Liangjun Zhu, Yuandong Zhang, Zongshan Li, Binde Guo, and Xiaochun Wang
Clim. Past, 12, 1485–1498,Short summary
We present a 368-year late summer maximum temperature reconstruction based on spruce tree rings. It touches on the critical topic of climate reconstruction in the eastern edge of Tibetan Plateau and represents an extension and enhancement of climate records for this area. The Little Ice Age was well represented and 20th century warming was not obvious in this reconstruction. This temperature variation may be affected by global land–sea atmospheric circulation as well as solar and volcanic forcing.
Frazer Matthews-Bird, Stephen J. Brooks, Philip B. Holden, Encarni Montoya, and William D. Gosling
Clim. Past, 12, 1263–1280,Short summary
Chironomidae are a family of two-winged aquatic fly of the order Diptera. The family is species rich (> 5000 described species) and extremely sensitive to environmental change, particualy temperature. Across the Northern Hemisphere, chironomids have been widely used as paleotemperature proxies as the chitinous remains of the insect are readily preserved in lake sediments. This is the first study using chironomids as paleotemperature proxies in tropical South America.
Karsten Schittek, Sebastian T. Kock, Andreas Lücke, Jonathan Hense, Christian Ohlendorf, Julio J. Kulemeyer, Liliana C. Lupo, and Frank Schäbitz
Clim. Past, 12, 1165–1180,Short summary
Cushion peatlands are versatile climate archives for the study of past environmental changes. We present the environmental history for the last 2100 years of Cerro Tuzgle peatland, which is located in the NW Argentine Puna. The results reflect prominent late Holocene climate anomalies and provide evidence that Northern Hemisphere climate oscillations were extensive. Volcanic forcing at the beginning of the 19th century seems to have had an impact on climatic settings in the Central Andes
Nicholas P. McKay and Julien Emile-Geay
Clim. Past, 12, 1093–1100,Short summary
The lack of accepted data formats and data standards in paleoclimatology is a growing problem that slows progress in the field. Here, we propose a preliminary data standard for paleoclimate data, general enough to accommodate all the proxy and measurement types encountered in a large international collaboration (PAGES 2k). We also introduce a data format for such structured data (Linked Paleo Data, or LiPD), leveraging recent advances in knowledge representation (Linked Open Data).
Niamh Cahill, Andrew C. Kemp, Benjamin P. Horton, and Andrew C. Parnell
Clim. Past, 12, 525–542,Short summary
We propose a Bayesian model for the reconstruction and analysis of former sea levels. The model provides a single, unifying framework for reconstructing and analyzing sea level through time with fully quantified uncertainty. We illustrate our approach using a case study of Common Era (last 2000 years) sea levels from New Jersey.
J. Emile-Geay and M. Tingley
Clim. Past, 12, 31–50,Short summary
Ignoring nonlinearity in palaeoclimate records (e.g. continental run-off proxies) runs the risk of severely overstating changes in climate variability. Even with the correct model and parameters, some information is irretrievably lost by such proxies. However, we find that a simple empirical transform can do much to improve the situation, and makes them amenable to classical analyses. Doing so on two palaeo-ENSO records markedly changes some of the quantitative inferences made from such records.
F. Spadin, D. Marti, R. Hidalgo-Staub, J. Rička, D. Fleitmann, and M. Frenz
Clim. Past, 11, 905–913,Short summary
Fluid inclusions inside stalagmites retain information on the cave temperature at the time they formed and thus can be used to reconstruct the continental climate of the past. A method for extracting this information based on a thermodynamic model and size measurements of femtosecond-laser-induced vapour bubbles is presented. Applying our method to stalagmites taken from the Milandre cave in the Swiss Jura Mountains demonstrate that palaeotemperatures can be determined with an accuracy of ±1°C.
B. Aichner, S. J. Feakins, J. E. Lee, U. Herzschuh, and X. Liu
Clim. Past, 11, 619–633,
H. S. Sundqvist, D. S. Kaufman, N. P. McKay, N. L. Balascio, J. P. Briner, L. C. Cwynar, H. P. Sejrup, H. Seppä, D. A. Subetto, J. T. Andrews, Y. Axford, J. Bakke, H. J. B. Birks, S. J. Brooks, A. de Vernal, A. E. Jennings, F. C. Ljungqvist, K. M. Rühland, C. Saenger, J. P. Smol, and A. E. Viau
Clim. Past, 10, 1605–1631,
V. V. Matskovsky and S. Helama
Clim. Past, 10, 1473–1487,
V. Drăguşin, M. Staubwasser, D. L. Hoffmann, V. Ersek, B. P. Onac, and D. Veres
Clim. Past, 10, 1363–1380,
E. Dietze, F. Maussion, M. Ahlborn, B. Diekmann, K. Hartmann, K. Henkel, T. Kasper, G. Lockot, S. Opitz, and T. Haberzettl
Clim. Past, 10, 91–106,
K. Rehfeld and J. Kurths
Clim. Past, 10, 107–122,
M. Allan, G. Le Roux, N. Piotrowska, J. Beghin, E. Javaux, M. Court-Picon, N. Mattielli, S. Verheyden, and N. Fagel
Clim. Past, 9, 2285–2298,
L. F. Prado, I. Wainer, C. M. Chiessi, M.-P. Ledru, and B. Turcq
Clim. Past, 9, 2117–2133,
M. Magny, N. Combourieu-Nebout, J. L. de Beaulieu, V. Bout-Roumazeilles, D. Colombaroli, S. Desprat, A. Francke, S. Joannin, E. Ortu, O. Peyron, M. Revel, L. Sadori, G. Siani, M. A. Sicre, S. Samartin, A. Simonneau, W. Tinner, B. Vannière, B. Wagner, G. Zanchetta, F. Anselmetti, E. Brugiapaglia, E. Chapron, M. Debret, M. Desmet, J. Didier, L. Essallami, D. Galop, A. Gilli, J. N. Haas, N. Kallel, L. Millet, A. Stock, J. L. Turon, and S. Wirth
Clim. Past, 9, 2043–2071,
T. Swierczynski, S. Lauterbach, P. Dulski, and A. Brauer
Clim. Past, 9, 1601–1612,
A. Coppola, G. Leonelli, M. C. Salvatore, M. Pelfini, and C. Baroni
Clim. Past, 9, 211–221,
Anchukaitis, K. J., Wilson, R., Briffa, K. R., Büntgen, U., Cook, E. R., D'Arrigo, R., Davi, N., Esper, J., Frank, D., Gunnarson, B. E., Hegerl, G., Helama, S., Klesse, S., Krusic, P. J., Linderholm, H. W., Myglan, V., Osborn, T. J., Zhang, P., Rydval, M., Schneider, L., Schurer, A., Wiles, G., and Zorita, E.: Last millennium Northern Hemisphere summer temperatures from tree rings: Part II, spatially resolved reconstructions, Quaternary Sci. Rev., 163, 1–22, https://doi.org/10.1016/j.quascirev.2017.02.020, 2017.
Bickle, P. and Whittle, A. W. R.: The first farmers of central Europe: Diversity in LBK lifeways, Cardiff Studies in Archaeology, Oxbow Books and the David Brown Book Company, Oakville, CT, 528 pp., 2013.
Briffa, K. R. and Jones, P. D.: Basic chronology statistics and assessment, in: Methods of dendrochronology: applications in the environmental sciences, edited by: Cook, E. R. and Kairiukstis, L. A., Kluwer Academic Publishers, Dordrecht, 137–152, 1990.
Büntgen, U., Trouet, V., Frank, D., Leuschner, H. H., Friedrichs, D., Luterbacher, J., and Esper, J.: Tree-ring indicators of German summer drought over the last millennium, Quaternary Sci. Rev., 29, 1005–1016, https://doi.org/10.1016/j.quascirev.2010.01.003, 2010.
Büntgen, U., Tegel, W., Nicolussi, K., McCormick, M., Frank, D., Trouet, V., Kaplan, J. O., Herzig, F., Heussner, K.-U., Wanner, H., Luterbacher, J., and Esper, J.: 2500 years of European climate variability and human susceptibility, Science, 331, 578–582, https://doi.org/10.1126/science.1197175, 2011.
Buras, A.: A comment on the expressed population signal, Dendrochronologia, 44, 130–132, https://doi.org/10.1016/j.dendro.2017.03.005, 2017.
Buras, A., Zang, C., and Menzel, A.: Testing the stability of transfer functions, Dendrochronologia, 42, 56–62, https://doi.org/10.1016/j.dendro.2017.01.005, 2017.
Bürger, G., Fast, I., and Cubasch, U.: Climate reconstruction by regression – 32 variations on a theme, Tellus A, 58, 227–235, 2006.
Christiansen, B. and Ljungqvist, F. C.: Challenges and perspectives for large-scale temperature reconstructions of the past two millennia, Rev. Geophys., 55, 40–96, https://doi.org/10.1002/2016RG000521, 2017.
Cook, E. R. and Krusic, P. J.: Program ARSTAN: A Tree-Ring Standardization Program Based on Detrending and Autoregressive Time Series Modeling, with Interactive Graphics, Tree-Ring Laboratory, Lamont Doherty Earth Observatory of Columbia University Palisades, Palisades, NY, 2005.
Cook, E. R. and Peters, K.: The smoothing spline: A new approach to standardizing forest interior tree-ring width series for dendroclimatic studies, Tree-Ring Bull., 41, 45–53, 1981.
Cook, E. R., Briffa, K. R., and Jones, P. D.: Spatial regression methods in dendroclimatology: A review and comparison of two techniques, Int. J. Climatol., 14, 379–402, 1994.
Cook, E. R., Seager, R., Cane, M. A., and Stahle, D. W.: North American drought: Reconstructions, causes, and consequences, Earth-Sci. Rev., 81, 93–134, https://doi.org/10.1016/j.earscirev.2006.12.002, 2007.
Cook, E. R., Seager, R., Kushnir, Y., Briffa, K. R., Büntgen, U., Frank, D., Krusic, P. J., Tegel, W., van der Schrier, G., Andreu-Hayles, L., Baillie, M., Baittinger, C., Bleicher, N., Bonde, N., Brown, D., Carrer, M., Cooper, R., Čufar, K., Dittmar, C., Esper, J., Griggs, C., Gunnarson, B., Gunther, B., Gutierrez, E., Haneca, K., Helama, S., Herzig, F., Heussner, K.-U., Hofmann, J., Janda, P., Kontic, R., Kose, N., Kyncl, T., Levanič, T., Linderholm, H., Manning, S., Melvin, T. M., Miles, D., Neuwirth, B., Nicolussi, K., Nola, P., Panayotov, M., Popa, I., Rothe, A., Seftigen, K., Seim, A., Svarva, H., Svoboda, M., Thun, T., Timonen, M., Touchan, R., Trotsiuk, V., Trouet, V., Walder, F., Wazny, T., Wilson, R., and Zang, C.: Old World megadroughts and pluvials during the Common Era, Sci. Adv., 1, 1–9, https://doi.org/10.1126/sciadv.1500561, 2015.
Cooper, R. J., Melvin, T. M., Tyers, I., Wilson, Rob J. S., and Briffa, K. R.: A tree-ring reconstruction of East Anglian (UK) hydroclimate variability over the last millennium, Clim. Dynam., 40, 1019–1039, https://doi.org/10.1007/s00382-012-1328-x, 2013.
Esper, J., Wilson, R. J. S., Frank, D. C., Moberg, A., Wanner, H., and Luterbacher, J.: Climate: past ranges and future changes, Quaternary Sci. Rev., 24, 2164–2166, https://doi.org/10.1016/j.quascirev.2005.07.001, 2005.
Esper, J., Frank, D., Büntgen, U., Verstege, A., Luterbacher, J., and Xoplaki, E.: Long-term drought severity variations in Morocco, Geophys. Res. Lett., 34, 1–5, 2007.
Frank, D., Esper, J., and Cook, E. R.: Adjustment for proxy number and coherence in a large-scale temperature reconstruction, Geophys. Res. Lett., 34, 1–5, https://doi.org/10.1029/2007GL030571, 2007.
Friedrich, M., Remmele, S., Kromer, B., Spurk, M., Hofmann, J., Hurni, J. P., Kaiser, K. F., and Küppers, M.: The 12.460-year Hohenheim oak and pine tree-ring chronology from Central Europe – a unique annual record for radiocarbon calibration and palaeoenvironment reconstructions, Radiocarbon, 46, 1111–1122, 2004.
Friedrichs, D. A., Büntgen, U., Frank, D. C., Esper, J., Neuwirth, B., and Löffler, J.: Complex climate controls on 20th century oak growth in Central-West Germany, Tree Physiol., 29, 39–51, https://doi.org/10.1093/treephys/tpn003, 2008.
Grinsted, A., Moore, J. C., and Jevrejeva, S.: Application of the cross wavelet transform and wavelet coherence to geophysical time series, Nonlin. Processes Geophys., 11, 561–566, https://doi.org/10.5194/npg-11-561-2004, 2004.
Helama, S., Meriläinen, J., and Tuomenvirta, H.: Multicentennial megadrought in northern Europe coincided with a global El Nino-Southern Oscillation drought pattern during the Medieval Climate Anomaly, Geology, 37, 175–178, https://doi.org/10.1130/G25329A.1, 2009.
Hughes, M. and Brown, P.: Drought frequency in central California since 101 B.C. recorded in giant sequoia tree rings, Clim. Dynam., 6, 161–167, https://doi.org/10.1007/BF00193528, 1992.
Klein Tank, A. M. G., Wijngaard, J. B., Können, G. P., Böhm, R., Demarée, G., Gocheva, A., Mileta, M., Pashiardis, S., Hejkrlik, L., Kern-Hansen, C., Heino, R., Bessemoulin, P., Müller-Westermeier, G., Tzanakou, M., Szalai, S., Pálsdóttir, T., Fitzgerald, D., Rubin, S., Capaldo, M., Maugeri, M., Leitass, A., Bukantis, A., Aberfeld, R., van Engelen, A. F. V., Forland, E., Mietus, M., Coelho, F., Mares, C., Razuvaev, V., Nieplova, E., Cegnar, T., Antonio López, J., Dahlström, B., Moberg, A., Kirchhofer, W., Ceylan, A., Pachaliuk, O., Alexander, L. V., and Petrovic, P.: Daily dataset of 20th-century surface air temperature and precipitation series for the European Climate Assessment, Int. J. Climatol., 22, 1441–1453, https://doi.org/10.1002/joc.773, 2002.
Kress, A., Hangartner, S., Bugmann, H., Büntgen, U., Frank, D. C., Leuenberger, M., Siegwolf, R. T. W., and Saurer, M.: Swiss tree rings reveal warm and wet summers during medieval times, Geophys. Res. Lett., 41, 1732–1737, https://doi.org/10.1002/2013GL059081, 2014.
Kreuzwieser, J., Papadopoulou, E., and Rennenberg, H.: Interaction of flooding with carbon metabolism of forest trees, Plant Biol., 6, 299–306, 2004.
Küppers, M., Remmele, S., Hofmann, J., and Land, A.: Two millennia of Main region (southern Germany) hydroclimate variability [data file], available at: https://doi.org/10.5281/zenodo.1453330, last access: 9 October 2018.
Land, A.: Holzanatomische Veränderungen als Reaktion auf extreme Umweltereignisse in rezenten und subfossilen Eichen und deren Verifizierung im Experiment, PhD-Thesis, Institut für Botanik, University of Hohenheim, Stuttgart-Hohenheim, 187 pp., 2014.
Land, A., Schönbein, J., and Friedrich, M.: Extreme climate events identified by wood-anatomical features for the Main region (Southern Germany) – A case study for 3000–2000 BC, in: 2200 BC – A climatic breakdown as a cause for the collapse of the old world?, edited by: Meller, H., Arz, H. W., Jung, R., and Risch, R., 595–602, 2015.
Land, A., Remmele, S., Schönbein, J., Küppers, M., and Zimmermann, R.: Climate-growth analysis using long-term daily-resolved station records with focus on the effect of heavy precipitation events, Dendrochronologia, 45, 156–164, 2017.
Leuschner, H. H., Sass-Klaassen, U., Jansma, E., Baillie, M. G. L., and Spurk, M.: Subfossil European bog oaks: population dynamics and long-term growth depressions as indicators of changes in the Holocene hydro-regime and climate, Holocene, 12, 695–706, 2002.
Levanič, T., Popa, I., Poljanšek, S., and Nechita, C.: A 323-year long reconstruction of drought for SW Romania based on black pine (Pinus nigra) tree-ring widths, Int. J. Biometeorol., 57, 703–714, https://doi.org/10.1007/s00484-012-0596-9, 2013.
Ljungqvist, F. C., Krusic, P. J., Sundqvist, H. S., Zorita, E., Brattström, G., and Frank, D.: Northern Hemisphere hydroclimate variability over the past twelve centuries, Nature, 532, 94–111, https://doi.org/10.1038/nature17418, 2016.
Mann, M. E., Zhang, Z., Rutherford, S., Bradley, R. S., Hughes, M. K., Shindell, D., Ammann, C., Faluvegi, G., and Ni, F.: Global signatures and dynamical origins of the Little Ice Age and Medieval Climate Anomaly, Science, 326, 1256–1260, 2009.
MathWorks: MATLAB – The language of technical computing, 6.5th Edn., 1994–2008.
McCarroll, D., Young, Giles H. F., and Loader, N. J.: Measuring the skill of variance-scaled climate reconstructions and a test for the capture of extremes, Holocene, 25, 618–626, https://doi.org/10.1177/0959683614565956, 2015.
Pauling, A., Luterbacher, J., Casty, C., and Wanner, H.: Five hundred years of gridded high-resolution precipitation reconstructions over Europe and the connection to large-scale circulation, Clim. Dynam., 26, 387–405, https://doi.org/10.1007/s00382-005-0090-8, 2006.
Pechtl, J. and Land, A.: Tree rings as a proxy for seasonal precipitation variability and Early Neolithic settlement dynamics in Bavaria, Germany, PLoS ONE, 14, e0210438, https://doi.org/10.1371/journal.pone.0210438, 2019.
Prokop, O., Kolář, T., Büntgen, U., Kyncl, J., Kyncl, T., Bošeł, M., Choma, M., Barta, P., and Rybníček, M.: On the palaeoclimatic potential of a millennium-long oak ring width chronology from Slovakia, Dendrochronologia, 40, 93–101, https://doi.org/10.1016/j.dendro.2016.08.001, 2016.
Ruiz-Labourdette, D., Génova, M., Schmitz, M. F., Urrutia, R., and Pineda, F. D.: Summer rainfall variability in European Mediterranean mountains from the sixteenth to the twentieth century reconstructed from tree rings, Int. J. Biometeorol., 58, 1627–1639, https://doi.org/10.1007/s00484-013-0766-4, 2014.
Schönbein, J.: Zur Rekonstruktion von Hochwasserereignissen in Europa aus holzanatomischen Parametern und historischen Quellen, Dissertation, Institut für Physische Georgrafie, Universität Freiburg, Freiburg, 94 pp., 2011.
Schönbein, J., Land, A., Friedrich, M., Glaser, R., and Küppers, M.: Seasonal reconstruction of summer precipitation variability and dating of flood events for the millennium between 3250 and 2250 years BC for the Main Region, southern Germany, in: Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC), edited by: Schulz, M. and Paul, A., SpringerBriefs in Earth System Sciences, Springer International Publishing, Cham, 127–131, 2015.
Seftigen, K., Goosse, H., Klein, F., and Chen, D.: Hydroclimate variability in Scandinavia over the last millennium – insights from a climate model-proxy data comparison, Clim. Past, 13, 1831–1850, https://doi.org/10.5194/cp-13-1831-2017, 2017.
Spurk, M., Leuschner, H. H., Baillie, M. G. L., Briffa, K. R., and Friedrich, M.: Depositional frequency of German subfossil oaks: Climatically and non-climatically induced fluctuations in the Holocene, Holocene, 12, 707–715, https://doi.org/10.1191/0959683602hl583rp, 2002.
Steger, O.: Zur Eichenwicklerbekämpfung 1958 im Hochspessart, Forstwissenschafltiches Centralblatt, 78, 108–120, 1959.
Steger, O.: Spätfröste und Massenwechsel von Tortrix viridiana L. (Lep. Tortr.), Z. Angew. Entomol., 46, 213–216, 1960.
Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V., and Midgley P. M. (Eds.): IPCC 2013: Climate Change 2013: The Physical Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, United Kingdom and New York, NY, USA, 1535 pp., 2013.
Stockton, C. W. and Meko, D. M.: A long-term history of drought occurrence in western United States as inferred from tree rings, Weatherwise, 28, 244–249, 1975.
von Storch, H., Zorita, E., Jones, J. M., Dimitriev, Y., González-Rouco, F., and Tett, S. F. B.: Reconstructing past climate from noisy data, Science, 306, 679–682, 2004.
Wigley, T. M. L., Briffa, K. R., and Jones, P. D.: On the average value of correlated time series, with applications in dendroclimatology and hydrometeorology, J. Clim. Appl. Meteorol., 23, 201–213, 1984.
Wilson, R. and Elling, W.: Temporal instability in tree-growth/climate response in the Lower Bavarian Forest region: implications for dendroclimatic reconstruction, Trees-Struct. Funct., 18, 19–28, https://doi.org/10.1007/s00468-003-0273-z, 2004.
Wilson, R., Miles, D., Loader, N. J., Melvin, T., Cunningham, L., Cooper, R., and Briffa, K.: A millennial long March–July precipitation recontruction for southern-central England, Clim. Dynam., 40, 997–1017, https://doi.org/10.1007/s00382-012-1318-z, 2013.
Wilson, R., Anchukaitis, K., Briffa, K. R., Büntgen, U., Cook, E., D'Arrigo, R., Davi, N., Esper, J., Frank, D., Gunnarson, B., Hegerl, G., Helama, S., Klesse, S., Krusic, P. J., Linderholm, H. W., Myglan, V., Osborn, T. J., Rydval, M., Schneider, L., Schurer, A., Wiles, G., Zhang, P., and Zorita, E.: Last millennium northern hemisphere summer temperatures from tree rings: Part I: The long term context, Quaternary Sci. Rev., 134, 1–18, https://doi.org/10.1016/j.quascirev.2015.12.005, 2016.
Wilson, R. J. S., Luckman, B. H., and Esper, J.: A 500 year dendroclimatic reconstruction of spring-summer precipitation from the lower Bavarian Forest region, Germany, Int. J. Climatol., 25, 611–630, https://doi.org/10.1002/joc.1150, 2005.
With the use of precipitation sensitive oak ring-width series from the Main River region (southern Germany) a 2000-year long hydroclimate reconstruction has been developed. The ring series are sensitive to the sum of rainfall from 26 February to 6 July. This region suffered from severe, long-lasting droughts in the past two millennia (e.g., AD 500/510s, 940s, 1170s, 1390s and 1160s). In the AD 550s, 1050s, 1310s and 1480s, multi-year periods with high rainfall hit the region.
With the use of precipitation sensitive oak ring-width series from the Main River region...