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| Titel |
Interannual variations of the terrestrial water storage in the Lower Ob' Basin from a multisatellite approach |
| VerfasserIn |
F. Frappart, F. Papa, A. Güntner, S. Werth, G. Ramillien, C. Prigent, W. B. Rossow, M.-P. Bonnet |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 14, no. 12 ; Nr. 14, no. 12 (2010-12-06), S.2443-2453 |
| Datensatznummer |
250012523
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| Publikation (Nr.) |
 copernicus.org/hess-14-2443-2010.pdf |
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| Zusammenfassung |
| Temporal variations of surface water volume over inundated areas of the
Lower Ob' Basin in Siberia, one of the largest contributor of freshwater to
the Arctic Ocean, are estimated using combined observations from a
multisatellite inundation dataset and water levels over rivers and
floodplains derived from the TOPEX/POSEIDON (T/P) radar altimetry. We
computed time-series of monthly maps of surface water volume over the common
period of available T/P and multisatellite data (1993–2004). The results
exhibit interannual variabilities similar to precipitation estimates and
river discharge observations. This study also presents monthly estimates of
groundwater and permafrost mass anomalies during 2003–2004 based on a
synergistic analysis of multisatellite observations and hydrological models.
Water stored in the soil is isolated from the total water storage measured
by GRACE when removing the contributions of both the surface reservoir,
derived from satellite imagery and radar altimetry, and the snow estimated
by inversion of GRACE measurements. The time variations of groundwater and
permafrost are then obtained when removing the water content of the root
zone reservoir simulated by hydrological models. |
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