Northern Eurasian large lakes history: sediment records obtained in the frame of Russian-German research project  PLOT

Fedorov, Grigory; Petersburg, St; Andreev, Andrey A.; Baumer, Marlene; Bolshiyanov, Dimitry Yu; Cherezova, Anna; Gromig, Raphael; Kostromina, Natalia; Kostrova, Svetlana; Krastel, Sebastian; Lebas, Élodie; Ludikova, Anna; Melles, Martin; Meyer, Hanno; Pestryakova, Luidmila; Savelieva, Larissa A; Shumilovskikh, Lyudmila; Subetto, Dmitry; Wagner, Bernd; Wennrich, Volker; Werner, Martin

doi:10.31951/2658-3518-2020-a-4-517

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Diatom oxygen isotope records of Northern Eurasia as indicators of environmental, hydrological and climate changes in the regions (67°53' N, 66°19' E; water depth: 136 m); Emanda (65°18' N, 135°46' E; water depth: 14.6 m) during the drilling campaign within the German-Russian Paleolimnological Transect (PLOT) project (Fedorov et al, 2020), using gravity and percussion pistoncorers operated from a floating platform (UWITEC Ltd., Austria).…”

Section: Introductionmentioning

confidence: 99%

Diatom oxygen isotope records of Northern Eurasia as indicators of environmental, hydrological and climate changes in the regions

Kostrova¹,

Bailey²,

Biskaborn³

et al. 2022

LFWB

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Abstract. The environmental, hydrological and climate dynamics were assessed in Northern Eurasia during the Holocene. The reconstructions are based on oxygen isotope composition of lacustrine diatom silica ( 18Odiatom) preserved in sediment cores from Ladoga, Bolshoye Shchuchye and Emanda lakes. Interpretation of the 18Odiatom data is supported by a comprehensive study of modern isotope hydrology and analysis of local and regional proxies. The Northern Eurasia 18Odiatom records are characterized by pronounced short term variations (1.5 5 ), pointing to the unstable climatic and hydrological conditions in the study regions. All records have clearly demonstrated a gradual depletion over the Holocene in their 18Odiatom values by ~3 4 , which follows the trend of decreasing summer insolation, as well as the temperature history of the Northern Hemisphere (NH), indicating a positive response of diatom oxygen isotope signal to large-scale climate changes.

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Section: Introductionmentioning

confidence: 99%

Diatom oxygen isotope records of Northern Eurasia as indicators of environmental, hydrological and climate changes in the regions

Kostrova¹,

Bailey²,

Biskaborn³

et al. 2022

LFWB

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“…To investigate the climate processes at play, a ~6000 km long geophysical transect across northern Eurasia was conducted at ~50–70°N. Within the PLOT (Paleolimnological Transect) project, sediment records from six Eurasian lakes covering the Holocene were gathered and geochemically analyzed (Fedorov et al ., 2020). Among other properties, the oxygen isotope composition of biogenic silica (diatoms) was studied.…”

Section: Introductionmentioning

confidence: 99%

Eurasian Holocene climate trends in transient coupled climate simulations and stable oxygen isotope records

Danek

Gierz

Kostrova

et al. 2021

J Quaternary Science

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Transient simulations of the global fully coupled climate model COSMOS under realistic varying orbital and greenhouse gas forcings are systematically compared to diatom oxygen isotope ( δ 18 O 0.1em diatom0.1em) records from Russian lakes with focus on Eurasian Holocene climate trends. The measured δ 18 O 0.1em diatom0.1em decrease and other temperature proxies are interpreted as large‐scale cooling throughout the Holocene while the model simulations are biased too warm, likely through missing radiative forcings. This large‐scale warm bias also dictates the modeled δ 18 O 0.1em precipitation. Hence, at locations where the signs of model and proxy temperature/precipitation trends agree, measured δ 18 O 0.1em diatom0.1em and modeled δ 18 O 0.1em precipitation0.1em trends show notable accordance. An increased temporal variability of modeled δ 18 O 0.1em precipitation0.1em is linked to persistent atmospheric circulation patterns. Applying the transient forcings in an accelerated way (every 10th year only) yields a similar, yet weaker or delayed model response, especially in the ocean.

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Northern Eurasian large lakes history: sediment records obtained in the frame of Russian-German research project PLOT

Cited by 2 publications

References 7 publications

Diatom oxygen isotope records of Northern Eurasia as indicators of environmental, hydrological and climate changes in the regions

Diatom oxygen isotope records of Northern Eurasia as indicators of environmental, hydrological and climate changes in the regions

Eurasian Holocene climate trends in transient coupled climate simulations and stable oxygen isotope records

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