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| Titel |
X-band COSMO-SkyMed wind field retrieval, with application to coastal circulation modeling |
| VerfasserIn |
A. Montuori, P. Ruggiero, M. Migliaccio, S. Pierini, G. Spezie |
| 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. 1 ; Nr. 9, no. 1 (2013-02-14), S.121-132 |
| Datensatznummer |
250017455
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| Publikation (Nr.) |
 copernicus.org/os-9-121-2013.pdf |
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| Zusammenfassung |
| In this paper, X-band COSMO-SkyMed© synthetic aperture radar
(SAR) wind field retrieval is investigated, and the obtained data are used to force
a coastal ocean circulation model. The SAR data set consists of 60
X-band Level 1B Multi-Look Ground Detected ScanSAR Huge Region
COSMO-SkyMed© SAR data, gathered in the southern
Tyrrhenian Sea during the summer and winter seasons of 2010. The SAR-based
wind vector field estimation is accomplished by resolving both the SAR-based
wind speed and wind direction retrieval problems independently. The sea
surface wind speed is retrieved by means of a SAR wind speed algorithm based
on the azimuth cut-off procedure, while the sea surface wind direction is
provided by means of a SAR wind direction algorithm based on the discrete
wavelet transform multi-resolution analysis. The obtained wind fields are
compared with ground truth data provided by both ASCAT scatterometer and
ECMWF model wind fields. SAR-derived wind vector fields and ECMWF model wind
data are used to construct a blended wind product regularly sampled in both
space and time, which is then used to force a coastal circulation model of a
southern Tyrrhenian coastal area to simulate wind-driven circulation
processes. The modeling results show that X-band
COSMO-SkyMed© SAR data can be valuable in
providing effective wind fields for coastal circulation modeling. |
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