Corsini, G. and Grasso, R. and Manara, G. and Monorchio, A. (2001) Estimation of directional sea wave spectra from radar images: a Mediterranean sea case study. Il nuovo cimento C, 24 C (1). pp. 67-80. ISSN 1826-9885
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Abstract
An inversion technique for estimating sea wave directional spectra from Synthetic Aperture Radar (SAR) images is applied to a set of ERS-1 data relevant to selected Mediterranean areas. The approach followed is based on the analytical definition of the transform which maps the sea wave spectrum onto the corresponding SAR image spectrum. The solution of the inverse problem is determined through a numerical procedure which minimises a proper functional. A suitable iterative scheme is adopted, involving the use of the above transform. Although widely applied to the ocean case, the method has not been yet extensively tested in smaller scale basins, as for instance the Mediterranean sea. The results obtained demonstrate the effectiveness of the numerical procedure discussed for retrieving the sea wave spectrum from SAR images. This work provides new experimental data relevant to the Mediterranean Sea, discusses the results obtained by the above inversion technique and compares them with buoy derived sea truth measurements.
| Item Type: | Article |
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| Additional Information: | Paper presented at the Workshop on Synthetic Aperture Radar (SAR), Florence, 25-26 February, 1998. |
| Uncontrolled Keywords: | Surface waves, tides, and sea level ; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing ; Telemetry: remote control, remote sensing, radar ; Image processing algorithms |
| Subjects: | 500 Scienze naturali e Matematica > 550 Scienze della Terra |
| Depositing User: | Marina Spanti |
| Date Deposited: | 10 Mar 2020 17:50 |
| Last Modified: | 10 Mar 2020 17:50 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/14039 |
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