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| Titel |
Sea wave modeling with X-band COSMO-SkyMed© SAR-derived wind field forcing and applications in coastal vulnerability assessment |
| VerfasserIn |
G. Benassai, A. Montuori, M. Migliaccio, F. Nunziata |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1812-0784
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| Digitales Dokument |
URL |
| Erschienen |
In: Ocean Science ; 9, no. 2 ; Nr. 9, no. 2 (2013-03-20), S.325-341 |
| Datensatznummer |
250018039
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| Publikation (Nr.) |
 copernicus.org/os-9-325-2013.pdf |
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| Zusammenfassung |
| In this paper, X-band COSMO-SkyMed©
synthetic aperture radar (SAR) wind field data are first used to force coastal wind wave modeling for both sea wave numerical simulation
and coastal vulnerability assessment purposes. The SAR-based wind field
retrieval is accomplished by resolving the SAR-based wind speed and wind
direction retrieval problems independently. The sea surface wind speed is
retrieved through the azimuth cut-off procedure, and the sea surface wind
direction is determined by the multi-resolution analysis of the discrete
wavelet transform. The wind wave modeling is based on the third-generation
Simulating WAves Nearshore (SWAN) model, which is used for sea wave state
estimation in coastal and inland regions. The coastal vulnerability
assessment is provided by means of a key parameter, known as impact index,
which evaluates the coastal risk due to the inundation of the
inshore land. Experiments consist of SWAN numerical simulations run with
respect to some relevant wave storms recorded in the southern Tyrrhenian Sea
on 2010, with applications in coastal vulnerability assessment along the
Sele coastal plain. Experimental results show the benefits of
blended wind field products, provided by European Centre for Medium Weather
Forecast (ECMWF) model winds and SAR-based wind field estimations, for both
wind wave modeling and coastal vulnerability assessment purposes. |
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