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| Titel |
Matching ERS scatterometer based soil moisture patterns with simulations of a conceptual dual layer hydrologic model over Austria |
| VerfasserIn |
J. Parajka, V. Naeimi, G. Blöschl, J. Komma |
| 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 ; 13, no. 2 ; Nr. 13, no. 2 (2009-02-23), S.259-271 |
| Datensatznummer |
250011766
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| Publikation (Nr.) |
 copernicus.org/hess-13-259-2009.pdf |
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| Zusammenfassung |
| This study compares ERS scatterometer top soil moisture observations with
simulations of a dual layer conceptual hydrologic model. The comparison is
performed for 148 Austrian catchments in the period 1991–2000. On average,
about 5 to 7 scatterometer images per month with a mean spatial coverage of
about 37% are available. The results indicate that the agreement between
the two top soil moisture estimates changes with the season and the weight
given to the scatterometer in hydrologic model calibration. The hydrologic
model generally simulates larger top soil moisture values than are observed
by the scatterometer. The differences tend to be smaller for lower altitudes
and the winter season. The average correlation between the two estimates is
more than 0.5 in the period from July to October, and about 0.2 in the
winter months, depending on the period and calibration setting. Using both
ERS scatterometer based soil moisture and runoff for model calibration
provides more robust model parameters than using either of these two sources
of information. |
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