Ocean Sci. Discuss., 9, 3251-3279, 2012
www.ocean-sci-discuss.net/9/3251/2012/
doi:10.5194/osd-9-3251-2012
© Author(s) 2012. This work is distributed
under the Creative Commons Attribution 3.0 License.
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This discussion paper has been under review for the journal Ocean Science (OS). Please refer to the corresponding final paper in OS.
X-band COSMO-SkyMed wind field retrieval, with application to coastal circulation modeling
A. Montuori1, P. de Ruggiero2, M. Migliaccio1, S. Pierini2, and G. Spezie2
1Dipartimento per le Tecnologie, Università di Napoli Parthenope, Napoli, Italy
2Dipartimento di Scienze per l'Ambiente, Università di Napoli Parthenope, Napoli, Italy

Abstract. In this paper, X-band COSMO-SkyMed© SAR wind field retrieval is investigated to force coastal circulation modeling. 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 clearly show that X-band COSMO-SkyMed© SAR data can be valuable in providing effective wind fields for coastal circulation modeling.

Citation: Montuori, A., de Ruggiero, P., Migliaccio, M., Pierini, S., and Spezie, G.: X-band COSMO-SkyMed wind field retrieval, with application to coastal circulation modeling, Ocean Sci. Discuss., 9, 3251-3279, doi:10.5194/osd-9-3251-2012, 2012.
 
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