Articles | Volume 9, issue 1
https://doi.org/10.5194/cp-9-119-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/cp-9-119-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Past climate changes and permafrost depth at the Lake El'gygytgyn site: implications from data and thermal modeling
D. Mottaghy
Geophysica Beratungsgesellschaft mbH, Aachen, Germany
G. Schwamborn
Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany
Department of Earth Sciences, Astronomy and Astrophysics, Faculty of Physical Sciences, Universidad Complutense de Madrid, Madrid, Spain
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Georg Schwamborn, Kai Hartmann, Bernd Wünnemann, Wolfgang Rösler, Annette Wefer-Roehl, Jörg Pross, Marlen Schlöffel, Franziska Kobe, Pavel E. Tarasov, Melissa A. Berke, and Bernhard Diekmann
Solid Earth, 11, 1375–1398, https://doi.org/10.5194/se-11-1375-2020, https://doi.org/10.5194/se-11-1375-2020, 2020
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We use a sediment core from the Gobi Desert (Ejina Basin, NW China) to illustrate the landscape history of the area. During 2.5 million years a sediment package of 223 m thickness has been accumulated. Various sediment types document that the area turned from a playa environment (shallow water environment with multiple flooding events) to an alluvial–fluvial environment after the arrival of the Heihe in the area. The river has been diverted due to tectonics.
Boris K. Biskaborn, Larisa Nazarova, Lyudmila A. Pestryakova, Liudmila Syrykh, Kim Funck, Hanno Meyer, Bernhard Chapligin, Stuart Vyse, Ruslan Gorodnichev, Evgenii Zakharov, Rong Wang, Georg Schwamborn, Hannah L. Bailey, and Bernhard Diekmann
Biogeosciences, 16, 4023–4049, https://doi.org/10.5194/bg-16-4023-2019, https://doi.org/10.5194/bg-16-4023-2019, 2019
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To better understand time-series data in lake sediment cores in times of rapidly changing climate, we study within-lake spatial variabilities of environmental indicator data in 38 sediment surface samples along spatial habitat gradients in the boreal deep Lake Bolshoe Toko (Russia). Our methods comprise physicochemical as well as diatom and chironomid analyses. Species diversities vary according to benthic niches, while abiotic proxies depend on river input, water depth, and catchment lithology.
Janina G. Stapel, Georg Schwamborn, Lutz Schirrmeister, Brian Horsfield, and Kai Mangelsdorf
Biogeosciences, 15, 1969–1985, https://doi.org/10.5194/bg-15-1969-2018, https://doi.org/10.5194/bg-15-1969-2018, 2018
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Climate warming in the Arctic results in thawing of permafrost deposits. This promotes the accessibility of freeze-locked old organic matter (OM) accumulated during the past. Characterizing OM of different depositional ages, we were able to show that OM from last glacial Yedoma deposits possess the highest potential to provide organic substrates such as acetate for microbial greenhouse gas production and therefore to accelerate the carbon–climate feedback cycle during ongoing global warming.
Sebastian Westermann, Maria Peter, Moritz Langer, Georg Schwamborn, Lutz Schirrmeister, Bernd Etzelmüller, and Julia Boike
The Cryosphere, 11, 1441–1463, https://doi.org/10.5194/tc-11-1441-2017, https://doi.org/10.5194/tc-11-1441-2017, 2017
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We demonstrate a remote-sensing-based scheme estimating the evolution of ground temperature and active layer thickness by means of a ground thermal model. A comparison to in situ observations from the Lena River delta in Siberia indicates that the model is generally capable of reproducing the annual temperature regime and seasonal thawing of the ground. The approach could hence be a first step towards remote detection of ground thermal conditions in permafrost areas.
Robert Delhaye, Volker Rath, Alan G. Jones, Mark R. Muller, and Derek Reay
Solid Earth, 8, 637–660, https://doi.org/10.5194/se-8-637-2017, https://doi.org/10.5194/se-8-637-2017, 2017
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We have modelled airborne electromagnetic data in order to correct bias in magnetotelluric data caused by very near-surface resistivity variations. Doing so recovers structures that match boreholes in the area more closely. This research is part of an exploration project looking at geothermal resources, and improved accuracy in modelling translates directly to more confidence in resources assessments.
Lutz Schirrmeister, Georg Schwamborn, Pier Paul Overduin, Jens Strauss, Margret C. Fuchs, Mikhail Grigoriev, Irina Yakshina, Janet Rethemeyer, Elisabeth Dietze, and Sebastian Wetterich
Biogeosciences, 14, 1261–1283, https://doi.org/10.5194/bg-14-1261-2017, https://doi.org/10.5194/bg-14-1261-2017, 2017
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We investigate late Pleistocene permafrost at the Buor Khaya Peninsula (Laptev Sea, Siberia) for cryolithological, geochemical, and geochronological parameters. The sequences were composed of ice-oversaturated silts and fine-grained sands with 0.2 to 24 wt% of organic matter. The deposition was between 54.1 and 9.7 kyr BP. Due to coastal erosion, the biogeochemical signature of the deposits represents the terrestrial end-member, and is related to organic matter deposited in the marine realm.
Heike Hildegard Zimmermann, Elena Raschke, Laura Saskia Epp, Kathleen Rosmarie Stoof-Leichsenring, Georg Schwamborn, Lutz Schirrmeister, Pier Paul Overduin, and Ulrike Herzschuh
Biogeosciences, 14, 575–596, https://doi.org/10.5194/bg-14-575-2017, https://doi.org/10.5194/bg-14-575-2017, 2017
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Organic matter stored in permafrost will start decomposing due to climate warming. To better understand its composition in ice-rich Yedoma, we analyzed ancient sedimentary DNA, pollen and non-pollen palynomorphs throughout an 18.9 m long permafrost core. The combination of both proxies allow an interpretation both of regional floristic changes and of the local environmental conditions at the time of deposition.
G. Schwamborn, H. Meyer, L. Schirrmeister, and G. Fedorov
Clim. Past, 10, 1109–1123, https://doi.org/10.5194/cp-10-1109-2014, https://doi.org/10.5194/cp-10-1109-2014, 2014
G. Schwamborn, L. Schirrmeister, and B. Diekmann
Clim. Past Discuss., https://doi.org/10.5194/cpd-9-6255-2013, https://doi.org/10.5194/cpd-9-6255-2013, 2013
Preprint withdrawn
Related subject area
Subject: Continental Surface Processes | Archive: Terrestrial Archives | Timescale: Pleistocene
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy
The climate and vegetation of Europe, North Africa and the Middle East during the Last Glacial Maximum (21,000 years BP) based on pollen data
Late Pleistocene glacial chronologies and paleoclimate in the northern Rocky Mountains
Cryogenic cave carbonates in the Dolomites (northern Italy): insights into Younger Dryas cooling and seasonal precipitation
Younger Dryas ice margin retreat in Greenland: new evidence from southwestern Greenland
Pleistocene glacial history of the New Zealand subantarctic islands
Palaeoclimate characteristics in interior Siberia of MIS 6–2: first insights from the Batagay permafrost mega-thaw slump in the Yana Highlands
Hydroclimate of the Last Glacial Maximum and deglaciation in southern Australia's arid margin interpreted from speleothem records (23–15 ka)
High-amplitude lake-level changes in tectonically active Lake Issyk-Kul (Kyrgyzstan) revealed by high-resolution seismic reflection data
Constant wind regimes during the Last Glacial Maximum and early Holocene: evidence from Little Llangothlin Lagoon, New England Tablelands, eastern Australia
Late Pleistocene–Holocene ground surface heat flux changes reconstructed from borehole temperature data (the Urals, Russia)
Sediment sequence and site formation processes at the Arbreda Cave, NE Iberian Peninsula, and implications on human occupation and climate change during the Last Glacial
Past freeze and thaw cycling in the margin of the El'gygytgyn crater deduced from a 141 m long permafrost record
Geochronological reconsideration of the eastern European key loess section at Stayky in Ukraine
Pre-LGM Northern Hemisphere ice sheet topography
Heinrich event 4 characterized by terrestrial proxies in southwestern Europe
Tephrostratigraphic studies on a sediment core from Lake Prespa in the Balkans
Depositional dynamics in the El'gygytgyn Crater margin: implications for the 3.6 Ma old sediment archive
Coarsely crystalline cryogenic cave carbonate – a new archive to estimate the Last Glacial minimum permafrost depth in Central Europe
Hydrological variability in the Northern Levant: a 250 ka multi-proxy record from the Yammoûneh (Lebanon) sedimentary sequence
Mary Robles, Odile Peyron, Guillemette Ménot, Elisabetta Brugiapaglia, Sabine Wulf, Oona Appelt, Marion Blache, Boris Vannière, Lucas Dugerdil, Bruno Paura, Salomé Ansanay-Alex, Amy Cromartie, Laurent Charlet, Stephane Guédron, Jacques-Louis de Beaulieu, and Sébastien Joannin
Clim. Past, 19, 493–515, https://doi.org/10.5194/cp-19-493-2023, https://doi.org/10.5194/cp-19-493-2023, 2023
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Quantitative climate reconstructions based on pollen and brGDGTs reveal, for the Late Glacial, a warm Bølling–Allerød and a marked cold Younger Dryas in Italy, showing no latitudinal differences in terms of temperatures across Italy. In terms of precipitation, no latitudinal differences are recorded during the Bølling–Allerød, whereas 40–42° N appears as a key junction point between wetter conditions in southern Italy and drier conditions in northern Italy during the Younger Dryas.
Basil Andrew Stansfield Davis, Marc Fasel, Jed O. Kaplan, Emmanuele Russo, and Ariane Burke
Clim. Past Discuss., https://doi.org/10.5194/cp-2022-59, https://doi.org/10.5194/cp-2022-59, 2022
Revised manuscript accepted for CP
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During the last Ice Age 21 k BP, Northern Europe was covered in ice and steppe, and forests were restricted to sheltered regions to the south. However, the composition and extent of forest and its associated climate remains unclear, with models indicating more forest north of the Alps than suggested by the data. A new compilation of pollen records with improved dating suggests greater agreement with model climate, but still suggests models over estimate forest cover especially in the west.
Brendon J. Quirk, Elizabeth Huss, Benjamin J. C. Laabs, Eric Leonard, Joseph Licciardi, Mitchell A. Plummer, and Marc W. Caffee
Clim. Past, 18, 293–312, https://doi.org/10.5194/cp-18-293-2022, https://doi.org/10.5194/cp-18-293-2022, 2022
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Glaciers in the northern Rocky Mountains began retreating 17 000 to 18 000 years ago, after the end of the most recent global ice volume maxima. Climate in the region during this time was likely 10 to 8.5° colder than modern with less than or equal to present amounts of precipitation. Glaciers across the Rockies began retreating at different times but eventually exhibited similar patterns of retreat, suggesting a common mechanism influencing deglaciation.
Gabriella Koltai, Christoph Spötl, Alexander H. Jarosch, and Hai Cheng
Clim. Past, 17, 775–789, https://doi.org/10.5194/cp-17-775-2021, https://doi.org/10.5194/cp-17-775-2021, 2021
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This paper utilises a novel palaeoclimate archive from caves, cryogenic cave carbonates, which allow for precisely constraining permafrost thawing events in the past. Our study provides new insights into the climate of the Younger Dryas (12 800 to 11 700 years BP) in mid-Europe from the perspective of a high-elevation cave sensitive to permafrost development. We quantify seasonal temperature and precipitation changes by using a heat conduction model.
Svend Funder, Anita H. L. Sørensen, Nicolaj K. Larsen, Anders A. Bjørk, Jason P. Briner, Jesper Olsen, Anders Schomacker, Laura B. Levy, and Kurt H. Kjær
Clim. Past, 17, 587–601, https://doi.org/10.5194/cp-17-587-2021, https://doi.org/10.5194/cp-17-587-2021, 2021
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Cosmogenic 10Be exposure dates from outlying islets along 300 km of the SW Greenland coast indicate that, although affected by inherited 10Be, the ice margin here was retreating during the Younger Dryas. These results seem to be corroborated by recent studies elsewhere in Greenland. The apparent mismatch between temperatures and ice margin behaviour may be explained by the advection of warm water to the ice margin on the shelf and by increased seasonality, both caused by a weakened AMOC.
Eleanor Rainsley, Chris S. M. Turney, Nicholas R. Golledge, Janet M. Wilmshurst, Matt S. McGlone, Alan G. Hogg, Bo Li, Zoë A. Thomas, Richard Roberts, Richard T. Jones, Jonathan G. Palmer, Verity Flett, Gregory de Wet, David K. Hutchinson, Mathew J. Lipson, Pavla Fenwick, Ben R. Hines, Umberto Binetti, and Christopher J. Fogwill
Clim. Past, 15, 423–448, https://doi.org/10.5194/cp-15-423-2019, https://doi.org/10.5194/cp-15-423-2019, 2019
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The New Zealand subantarctic islands, in the Pacific sector of the Southern Ocean, provide valuable records of past environmental change. We find that the Auckland Islands hosted a small ice cap around 384 000 years ago, but that there was little glaciation during the Last Glacial Maximum, around 21 000 years ago, in contrast to mainland New Zealand. This shows that the climate here is susceptible to changes in regional factors such as sea-ice expanse and the position of ocean fronts.
Kseniia Ashastina, Lutz Schirrmeister, Margret Fuchs, and Frank Kienast
Clim. Past, 13, 795–818, https://doi.org/10.5194/cp-13-795-2017, https://doi.org/10.5194/cp-13-795-2017, 2017
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We present the first detailed description and sedimentological analyses of an 80 m permafrost sequence exposed in a mega-thaw slump near Batagay in the Yana Highlands, Russia, and attempt to deduce its genesis. First dating results (14C, OSL) show that the sequence represents a continental climate record spanning from the Middle Pleistocene to the Holocene. We suggest that the characteristics of the studied deposits are a result of various seasonally controlled climatically induced processes.
Pauline C. Treble, Andy Baker, Linda K. Ayliffe, Timothy J. Cohen, John C. Hellstrom, Michael K. Gagan, Silvia Frisia, Russell N. Drysdale, Alan D. Griffiths, and Andrea Borsato
Clim. Past, 13, 667–687, https://doi.org/10.5194/cp-13-667-2017, https://doi.org/10.5194/cp-13-667-2017, 2017
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Little is known about the climate of southern Australia during the Last Glacial Maximum and deglaciation owing to sparse records for this region. We present the first high-resolution data, derived from speleothems that grew 23–5 ka. It appears that recharge to the Flinders Ranges was higher than today, particularly during 18.9–15.8 ka, argued to be due to the enhanced availability of tropical moisture. An abrupt shift to aridity is recorded at 15.8 ka, associated with restored westerly airflow.
Andrea Catalina Gebhardt, Lieven Naudts, Lies De Mol, Jan Klerkx, Kanatbek Abdrakhmatov, Edward R. Sobel, and Marc De Batist
Clim. Past, 13, 73–92, https://doi.org/10.5194/cp-13-73-2017, https://doi.org/10.5194/cp-13-73-2017, 2017
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Seismic profiles from the western and eastern deltas of Lake Issyk-Kul were used to identify lake-level changes of up to 400 m. Seven stratigraphic sequences were identified, each containing a series of delta lobes that were formed during former lake-level stillstands. Lake-level fluctuations point to significant changes in the strength and position of the Siberian High and the mid-latitude Westerlies. Their interplay is responsible for the amount of moisture that reaches this area.
James Shulmeister, Justine Kemp, Kathryn E. Fitzsimmons, and Allen Gontz
Clim. Past, 12, 1435–1444, https://doi.org/10.5194/cp-12-1435-2016, https://doi.org/10.5194/cp-12-1435-2016, 2016
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This paper highlights that small dunes (lunettes) formed on the eastern side of a lake in the Australian sub-tropics at the height of the last ice age (about 21,000 years ago) and in the early part of the current interglacial (9–6,000 years ago). This means that it was fairly wet at these times and also that there were strong westerly winds to form the dunes. Today strong westerly winds occur in winter, and we infer that the same was also true at those times, suggesting no change in circulation.
D. Y. Demezhko and A. A. Gornostaeva
Clim. Past, 11, 647–652, https://doi.org/10.5194/cp-11-647-2015, https://doi.org/10.5194/cp-11-647-2015, 2015
M. Kehl, E. Eckmeier, S. O. Franz, F. Lehmkuhl, J. Soler, N. Soler, K. Reicherter, and G.-C. Weniger
Clim. Past, 10, 1673–1692, https://doi.org/10.5194/cp-10-1673-2014, https://doi.org/10.5194/cp-10-1673-2014, 2014
G. Schwamborn, H. Meyer, L. Schirrmeister, and G. Fedorov
Clim. Past, 10, 1109–1123, https://doi.org/10.5194/cp-10-1109-2014, https://doi.org/10.5194/cp-10-1109-2014, 2014
A. Kadereit and G. A. Wagner
Clim. Past, 10, 783–796, https://doi.org/10.5194/cp-10-783-2014, https://doi.org/10.5194/cp-10-783-2014, 2014
J. Kleman, J. Fastook, K. Ebert, J. Nilsson, and R. Caballero
Clim. Past, 9, 2365–2378, https://doi.org/10.5194/cp-9-2365-2013, https://doi.org/10.5194/cp-9-2365-2013, 2013
J. M. López-García, H.-A. Blain, M. Bennàsar, M. Sanz, and J. Daura
Clim. Past, 9, 1053–1064, https://doi.org/10.5194/cp-9-1053-2013, https://doi.org/10.5194/cp-9-1053-2013, 2013
M. Damaschke, R. Sulpizio, G. Zanchetta, B. Wagner, A. Böhm, N. Nowaczyk, J. Rethemeyer, and A. Hilgers
Clim. Past, 9, 267–287, https://doi.org/10.5194/cp-9-267-2013, https://doi.org/10.5194/cp-9-267-2013, 2013
G. Schwamborn, G. Fedorov, N. Ostanin, L. Schirrmeister, A. Andreev, and the El'gygytgyn Scientific Party
Clim. Past, 8, 1897–1911, https://doi.org/10.5194/cp-8-1897-2012, https://doi.org/10.5194/cp-8-1897-2012, 2012
K. Žák, D. K. Richter, M. Filippi, R. Živor, M. Deininger, A. Mangini, and D. Scholz
Clim. Past, 8, 1821–1837, https://doi.org/10.5194/cp-8-1821-2012, https://doi.org/10.5194/cp-8-1821-2012, 2012
F. Gasse, L. Vidal, A.-L. Develle, and E. Van Campo
Clim. Past, 7, 1261–1284, https://doi.org/10.5194/cp-7-1261-2011, https://doi.org/10.5194/cp-7-1261-2011, 2011
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