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Summary of Proposal GEO1241

TitlePermafrost survey using Dual-Pol InSAR data
Investigator Garestier, Franck - University of Caen, Lab M2C, UMR CNRS/INSU 6143
Team MemberNo team members defined
SummaryThis project is dedicated to the survey of high latitude environments using advanced SAR techniques, such thematic being of a great interest for understanding and predicting the climate evolution. The main objective of this project is to develop surface parameter inversion procedures to characterize permafrost. SAR techniques bring the advantage of a regular/continuous survey, due to the low atmospheric sensitivity of this frequency, with a wide and homogeneous coverage, comparing to in situ measurements. It is planned to 1/ evaluate the possibility of estimating ground vertical displacements, with a sub-centimetric accuracy using D-InSAR, during the thaw-refreeze cycle 2/ to detect variations of soil moisture distribution in time using polarimetric information. These two main informations can give insights on the active layer depth, based on physical modeling and experiments in cold chambers, which is a key parameter governing carbon exchange with the atmosphere.

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DLR 2004-2016