Mass variations in the Siberian permafrost region based on new GRACE results and auxiliary modeling

GRACE (Gravity Recovery and Climate Experiment) determines the integral mass variations in the Earth system with different spatial-temporal resolution. These mass variations should be adequately separated for better understanding of the single signal contributions. In Siberia, the temporal mass vari...

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Bibliographic Details
Main Authors: Shabanloui, Akbar, Müller, Jürgen
Format: Conference Object
Language:English
Published: 2014
Subjects:
Mass variations from GRACE Data
Mass distribution
hydrological model
Auxiliary modeling
Massenvariationen aus GRACE-Daten
Massenverteilung
Hydrologisches Modell
Siberian Permafrostgebiet
ddc:620
ddc:520
permafrost
Siberia
Online Access:https://www.repo.uni-hannover.de/handle/123456789/4597
https://doi.org/10.15488/4555
Description
Summary:GRACE (Gravity Recovery and Climate Experiment) determines the integral mass variations in the Earth system with different spatial-temporal resolution. These mass variations should be adequately separated for better understanding of the single signal contributions. In Siberia, the temporal mass variations are related to hydrological processes including thawing of huge permafrost layers. The permafrost layers with different thicknesses cover about 80% of Siberia. Therefore these frozen sheets play an important role for sea level rise and the hydrological water cycle. In this study, the integral mass variations in Siberia are precisely estimated based on the new release of GRACE from GFZ (RL05a). On the other hand, various hydrological contributions (lake level variation, river runoff, etc.) can be estimated from different models and specific data. Here, mass variations in the Siberian permafrost region based on GRACE results and different hydrological models/data will be jointly investigated.

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