Data


Comparing a new paleomap of European loess landscapes to an atmospheric dust circulation model

Abstract

Loess is an important archive of environmental change covering approximately 10% of the Earth’s terrestrial surface. Numerous studies have analyzed loess deposits and in particular loess-paleosol sequences. To analyze these sequences, it is important to know the spatial distribution of aeolian sediments, their location relative to potential source areas, and the geomorphology of the sink area. We investigated these aspects by compiling a new map of aeolian sediments in Europe using highly resolved geodata from 27 countries (Lehmkuhl et al., 2021). To determine the most relevant factors for the European loess distribution, we further mapped potential source areas and divided the map into different facies domains. We analyzed the geomorphological and paleoenvironmental effects on the deposition and preservation of Late Pleistocene loess. Finally, the geodata-based results were compared with results obtained from high-resolved regional numerical climate-dust experiments for the Last Glacial Maximum (LGM) in Europe, which were performed with the LGM-adapted Weather Research and Forecasting model coupled with Chemistry (WRF-Chem-LGM; Schaffernicht et al., 2020). Complementing the mapping-based findings with the WRF-Chem-LGM experiments results in an improved understanding of the Late Pleistocene loess landscape in Europe.


References

Lehmkuhl, F., Nett, J.J., Pötter, S., Schulte, P., Sprafke, T., Jary, Z., Antoine, P., Wacha, L., Wolf, D., Zerboni, A., Hošek, J., Marković, S.B., Obreht, I., Sümegi, P., Veres, D., Zeeden, C., Boemke, B., Schaubert, V., Viehweger, J., Hambach, U. 2021). Loess landscapes of Europe – Mapping, geomorphology, and zonal differentiation. Earth-Science Reviews. Doi: https://doi.org/10.1016/j.earscirev.2020.103496

Schaffernicht, E.J., Ludwig, P., Shao, Y., 2020. Linkage between dust cycle and loess of the last Glacial Maximum in Europe. Atmospheric Chemistry and Physics 20, 4969–4986. https://acp.copernicus.org/articles/20/4969/2020/, https://doi.org/10.5194/acp-20-4969-2020

Resources

url EGU GA 2021 Abstract Accessed 7 times | Last updated 15.07.2021
file Nett.et.al.pico.pps Accessed 9 times | Last updated 15.07.2021

Bibliography

Nett, J., Lehmkuhl, F., Schaffernicht, E., Pötter, S., Schulte, P., Ludwig, P., Sprafke, T., Hambach, U. (2021): Comparing a new paleomap of European loess landscapes to an atmospheric dust circulation model. EGU General Assembly 2021, DOI: 10.5880/SFB806.70

Authors Nett, Janina J. (Bösken) and Lehmkuhl, Frank and Schaffernicht, Erik J. and Pötter, Stephan and Schulte, Philipp and Ludwig, Patrick and Sprafke, Tobias and Hambach, Ulrich
Type presentation
Title Comparing a new paleomap of European loess landscapes to an atmospheric dust circulation model
DOI 10.5880/SFB806.70
Year 2021
Publisher EGU General Assembly 2021
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