View source for 2022 CSDMS meeting-054

{{CSDMS meeting personal information template-2022
|CSDMS meeting first name=Risa
|CSDMS meeting last name=Madoff
|CSDMS Pronouns=she/her/hers
|CSDMS meeting institute=University of North Dakota
|CSDMS meeting city=Grand Forks
|CSDMS meeting country=United States
|CSDMS meeting state=North Dakota
|CSDMS meeting email address=risa.madoff@und.edu
}}
{{CSDMS meeting select clinics1 2022
|CSDMS_meeting_select_clinics1_2022=4) Teaching with Jupyter NoteBooks
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{{CSDMS meeting select clinics2 2022
|CSDMS_meeting_select_clinics2_2022=4) Xarray for Scalable Scientific Data Analysis
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{{CSDMS meeting select clinics3 2022
|CSDMS_meeting_select_clinics3_2022=4) Publishing Reproducible Computational Research with the Whole Tale
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{{CSDMS meeting abstract yes no 2022
|CSDMS meeting abstract submit=Yes
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{{CSDMS meeting abstract title temp2022
|CSDMS meeting abstract title=Regional Erosion Rates Show Strong Climate-Driven Variability in the Arctic Since the LGM
|Working_group_member_WG_FRG=Terrestrial Working Group
}}
{{CSDMS meeting authors template
|CSDMS meeting coauthor first name abstract=Jaakko
|CSDMS meeting coauthor last name abstract=Putkonen
|CSDMS meeting coauthor institute / Organization=University of North Dakota
|CSDMS meeting coauthor town-city=Grand Forks
|CSDMS meeting coauthor country=United States
|State=North Dakota
|CSDMS meeting coauthor email address=jaakko.putkonen@und.edu
}}
{{CSDMS meeting abstract template 2022
|CSDMS meeting abstract=The last 22 ka, since the Last Glacial Maximum (LGM), is known for significant millennial scale changes in global climate (Barker and Knorr, 2021). Sedimentary deposits in lacustrine and marine basins bear archives of corresponding changes in sediment accumulation. Yet given the scale that the global climate exerts on geomorphological processes on Earth’s surface, generalizations of the relationship between the climate and the erosion remains inconclusive. Whether the possible generalizations could even be applied to all regions has also remained unclear.


Erosion rates are a first-order response to climate of a region. The variability of erosion rates through time are needed for dating of buried surfaces, quantifying soil carbon budgets, and assessing landscape stability. Until now, a truly global analysis of comparing interregional erosion rates has not been available. Recent work in Madoff and Putkonen (2022) addresses this by generating global maps of regional erosion rates since the LGM. These results are supported by corresponding published sediment accumulation rates in sink areas corresponding to given watershed. Results show the spatial extent of higher erosion rates and larger ranges of variability through time in the Arctic and subarctic in contrast to the tropics and mid-latitudes. These results also indicate that the regional variability decreases the further from the past ice sheets a given location is. Finally, a clear take home message from these results is that the regional erosion rates vary both through time and space for the past 22 ka.

Barker, S., Knorr, G., 2021. Millennial scale feedbacks determine the shape and rapidity of glacial termination. Nature. Communications. 12. 

Madoff, R.D., Putkonen, J., 2022. Global variations in regional degradation rates since the Last Glacial Maximum mapped through time and space. Quaternary Research. 1–13. https://doi.org/10.1017/qua.2022.4
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