Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry
Hydrological processes in permafrost regions are very sensitive to climate change. Siberia is affected in particular, as it experiences a stronger warming trend than the global average. We use data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission to study inter-annual water...
Main Authors: | , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
2011
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/26003/ https://hdl.handle.net/10013/epic.38968 |
id |
ftawi:oai:epic.awi.de:26003 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:26003 2024-09-15T18:29:52+00:00 Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry Vey, Sibylle Crétaux, J.-F. Müller, Jürgen Boike, Julia 2011-12-07 https://epic.awi.de/id/eprint/26003/ https://hdl.handle.net/10013/epic.38968 unknown Vey, S. , Crétaux, J. F. , Müller, J. and Boike, J. orcid:0000-0002-5875-2112 (2011) Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry , American Geophysical Union Fall Meeting, San Francisco, USA, 6 December 2011 - 10 December 2011 . hdl:10013/epic.38968 EPIC3American Geophysical Union Fall Meeting, San Francisco, USA, 2011-12-06-2011-12-10 Conference notRev 2011 ftawi 2024-06-24T04:03:41Z Hydrological processes in permafrost regions are very sensitive to climate change. Siberia is affected in particular, as it experiences a stronger warming trend than the global average. We use data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission to study inter-annual water mass variations in the Siberian permafrost between 2003 and 2010. The observed mass changes indicate long-term changes in the hydrological budget of the large Siberian watersheds. For selected lakes in the Lena basin, we employ satellite radar altimetry observations to estimate water storage changes related to lake level variations. Large parts of Siberia are covered by thousands of lakes. As consequence of a strong wetting trend in this region lake levels are rising. The lake level rise can explain about half of the mass increase observed by GRACE. Other potential reasons for water storage variations such as changes in lake surface extension, soil moisture and the talik formation are discussed. Conference Object permafrost Siberia Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Hydrological processes in permafrost regions are very sensitive to climate change. Siberia is affected in particular, as it experiences a stronger warming trend than the global average. We use data from the Gravity Recovery and Climate Experiment (GRACE) satellite mission to study inter-annual water mass variations in the Siberian permafrost between 2003 and 2010. The observed mass changes indicate long-term changes in the hydrological budget of the large Siberian watersheds. For selected lakes in the Lena basin, we employ satellite radar altimetry observations to estimate water storage changes related to lake level variations. Large parts of Siberia are covered by thousands of lakes. As consequence of a strong wetting trend in this region lake levels are rising. The lake level rise can explain about half of the mass increase observed by GRACE. Other potential reasons for water storage variations such as changes in lake surface extension, soil moisture and the talik formation are discussed. |
format |
Conference Object |
author |
Vey, Sibylle Crétaux, J.-F. Müller, Jürgen Boike, Julia |
spellingShingle |
Vey, Sibylle Crétaux, J.-F. Müller, Jürgen Boike, Julia Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
author_facet |
Vey, Sibylle Crétaux, J.-F. Müller, Jürgen Boike, Julia |
author_sort |
Vey, Sibylle |
title |
Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
title_short |
Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
title_full |
Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
title_fullStr |
Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
title_full_unstemmed |
Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry |
title_sort |
water storage changes in the lena watershed, siberia observed by grace and satellite altimetry |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/26003/ https://hdl.handle.net/10013/epic.38968 |
genre |
permafrost Siberia |
genre_facet |
permafrost Siberia |
op_source |
EPIC3American Geophysical Union Fall Meeting, San Francisco, USA, 2011-12-06-2011-12-10 |
op_relation |
Vey, S. , Crétaux, J. F. , Müller, J. and Boike, J. orcid:0000-0002-5875-2112 (2011) Water storage changes in the Lena watershed, Siberia observed by GRACE and satellite altimetry , American Geophysical Union Fall Meeting, San Francisco, USA, 6 December 2011 - 10 December 2011 . hdl:10013/epic.38968 |
_version_ |
1810471349975515136 |