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Conference Papers Year : 2021

Fusion of glacier displacement observations with different temporal baselines

Abstract

This article proposes a method based on the temporal closure of the displacement measurement's network. The aim is to extract short-term glacier velocities and to use data redundancy to reject outliers and reduce uncertainty. By using all the available displacement measurements, we retrieve a displacement time series between consecutive observation dates by means of an inversion. The proposed inversion method is an Iterative Weighted Least Square (IWLS) with a regularization on the discrete derivative of displacements. We apply our method to a glaciers velocity data-set covering Fox Glacier in the Southern Alps of New Zealand.
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Dates and versions

hal-03340445 , version 1 (10-09-2021)

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Laurane Charrier, Y Yan, Elise Colin-Koeniguer, E. Trouvé. Fusion of glacier displacement observations with different temporal baselines. IGARSS 2021, Jul 2021, Bruxelles, Belgium. ⟨10.1109/IGARSS47720.2021.9553831⟩. ⟨hal-03340445⟩
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