Articles | Volume 19, issue 7
Biogeosciences, 19, 2079–2094, 2022
https://doi.org/10.5194/bg-19-2079-2022
Biogeosciences, 19, 2079–2094, 2022
https://doi.org/10.5194/bg-19-2079-2022
Research article
14 Apr 2022
Research article | 14 Apr 2022

Organic matter characteristics of a rapidly eroding permafrost cliff in NE Siberia (Lena Delta, Laptev Sea region)

Charlotte Haugk et al.

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Cited articles

Andersson, R. A. and Meyers, P. A.: Effect of climate change on delivery and degradation of lipid biomarkers in a Holocene peat sequence in the Eastern European Russian Arctic, Org. Geochem., 53, 63–72, https://doi.org/10.1016/j.orggeochem.2012.05.002, 2012. 
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Chen, J., Günther, F., Grosse, G., Liu, L., and Lin, H.: Sentinel-1 InSAR Measurements of Elevation Changes over Yedoma Uplands on Sobo-Sise Island, Lena Delta, Remote Sens., 10, 1152, https://doi.org/10.3390/rs10071152, 2018. 
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Buried animal and plant remains (carbon) from the last ice age were freeze-locked in permafrost. At an extremely fast eroding permafrost cliff in the Lena Delta (Siberia), we found this formerly frozen carbon well preserved. Our results show that ongoing degradation releases substantial amounts of this carbon, making it available for future carbon emissions. This mobilisation at the studied cliff and also similarly eroding sites bear the potential to affect rivers and oceans negatively.
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