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| Titel |
Snow accumulation/melting model (SAMM) for integrated use in regional scale landslide early warning systems |
| VerfasserIn |
G. Martelloni, S. Segoni, D. Lagomarsino, R. Fanti, F. Catani |
| 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 ; 17, no. 3 ; Nr. 17, no. 3 (2013-03-20), S.1229-1240 |
| Datensatznummer |
250018835
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| Publikation (Nr.) |
 copernicus.org/hess-17-1229-2013.pdf |
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| Zusammenfassung |
We propose a simple snow accumulation/melting model (SAMM) to be applied at
regional scale in conjunction with landslide warning systems based on
empirical rainfall thresholds.
SAMM is based on two modules modelling the snow accumulation and the
snowmelt processes. Each module is composed by two equations: a conservation
of mass equation is solved to model snowpack thickness and an empirical
equation for the snow density. The model depends on 13 empirical parameters,
whose optimal values were defined with an optimisation algorithm (simplex
flexible) using calibration measures of snowpack thickness.
From an operational point of view, SAMM uses as input data only temperature
and rainfall measurements, bringing about the additional benefit of a
relatively easy implementation.
After performing a cross validation and a comparison with two simpler
temperature index models, we simulated an operational employment in a
regional scale landslide early warning system (EWS) and we found that the
EWS forecasting effectiveness was substantially improved when used in
conjunction with SAMM. |
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