| Title | Wind Retrieval from RADARSAT SAR Images: Selection of a Suitable C-band HH Polarization Wind Retrieval Model |
| Download | Downloads (Preprint) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Vachon, P W; Dobson, F W |
| Source | Canadian Journal of Remote Sensing, ADRO Final Symposium special issue; 26, 4, 2000 p. 306-313, https://doi.org/10.4095/219536  Open Access |
| Year | 2000 |
| Alt Series | Earth Sciences Sector, Contribution Series 20042734 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Released | 2000 01 01 |
| Abstract | A standardized analysis of wind retrieval collocations from a set of ERS (C-band VV polarization) and RADARSAT (C-band HH polarization) synthetic aperture radar (SAR) open ocean images is presented. The
field validation opportunities, carried out over the past eight years, provided collocated (in time and space) in situ validation data consisting of wind vector and ocean wave spectrum measurements. In this paper, we present validation results for
the SAR-estimated wind direction and speed. The direction estimate is based on the orientation of coherent atmospheric structures in the SAR image. The speed estimate is based on the orientation of coherent atmospheric structures in the SAR image.
The speed estimate is based on a scatterometer wind retrieval model for C-band VV polarization (specifically, CMOD IFR2) modified for HH polarization using available polarization ratios. We consider several C-band polarization ratios including
empirical and theoretical forma. Use of CMOD IFR2 and a polarization ratio according to Kirchhoff is recommended for RADARSAT SAR ocean wind retrieval. |
| GEOSCAN ID | 219536 |
|
|