| Tittel: | Updating snow reservoir in hydrological models from satellite-observed snow covered areas | | Ansvar: | Eli Alfnes ... [et al.] | | Forfatter: | Alfnes, Eli  / Langsholt, Elin / Udnæs, Hans-Christian / Skaugen, Thomas | | Materialtype: | NVEs utgivelser | | Signatur: | 556(05) | | Utgitt: | Oslo : NVE, 2005 | | Omfang: | 47 s. - diagr. | | ISBN/ISSN: | 1503-1318 | | Serie: | NVE Oppdragsrapport A ; 2005:4 | | Emneord: | Avrenning / Hydrologiske modeller / Satelittdata / Simuleringer / Snø / Snøsmelting | | Note: | Oppdragsgivere: Eu 5th framework and NORUT IT
Abstract: Operational use of satellite-observed snow covered area (SCA) in the
HBV-model has been carried out using two different snow distribution functions.
SCA could be included in the model calibration with only small reduction in runoff
performance. Updating the runoff models based on the satellite derived SCA showed
ambiguous results. The success rate of the updates was only 28 % for the traditional
snow model. Studies using a dynamic snow distribution function for the snow
reservoir showed comparable results to the traditional lognormal snow distribution
for prediction of discharge and better for the prediction of SCA. Updating the new
model from satellite derived SCA consistently gave improvements on the prediction
of discharge. | | Eier: | NVE | | Eksemplar: | 2. (2 tilgjengelige) | | |
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| 1.ex | Tilgjengelig | | NVE | NVE-biblioteket | | 556(05) | | | 2.ex | Tilgjengelig | | NVE | NVE-biblioteket | | 556(05) | |
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