Thermokarst lake monitoring on the Bykovsky Peninsula using high-resolution remote sensing data


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theresa.henning [ at ] awi.de

Abstract

Thermokarst lakes are a characteristic element of arctic permafrost regions and an indicator for their rapid landscape changes. Assessing their dynamics contributes to the understanding of driving processes of change, to the evaluation of impacts on landscape characteristics as well as to the estimation of the impact on the permafrost-related carbon budget. Monitoring thermokarst lake dynamics on the Bykovsky Peninsula, consisting of ice-rich Yedoma deposits, using high resolution remote sensing imagery from 1951 to 2016, revealed a long-term tendency towards lake drainage. Approximately 17% of the 1951 lake area was lost due to coastal erosion or the development of drainage networks. In parallel, coastal erosion driven land loss amounts to 2.3% of the peninsula. We find process interconnections between coastal erosion and lake change, as well as lake change dependency on land elevation in a developed alas-yedoma thermokarst relief.



Item Type
Conference (Poster)
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Peer revision
Not peer-reviewed
Publication Status
Published
Event Details
5th European Conference on Permafrost, Book of Abstracts, 23 Jun 2018 - 01 Jul 2018, Chamonix Mont-Blanc, France.
Eprint ID
47577
Cite as
Henning, T. , Günther, F. , Kizyakov, A. I. and Grosse, G. (2018): Thermokarst lake monitoring on the Bykovsky Peninsula using high-resolution remote sensing data / P. Deline , X. Bodin and L. Ravanel (editors) , 5th European Conference on Permafrost, Book of Abstracts, Chamonix Mont-Blanc, France, 23 June 2018 - 1 July 2018 .


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info:eu-repo/grantAgreement/EC/FP7/338335


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