A Study of Sea Surface Wind Vector Estimation From Near-Nadiral Cross-Track-Scanned Backscatter Data

作者：Nekrasov Alexey^*; Ouellette Jeff; Majurec Ninoslav; Johnson Joel T

来源：IEEE Geoscience and Remote Sensing Letters, 2013, 10(6): 1503-1506.

DOI：10.1109/LGRS.2013.2261047

• Near-nadir backscatter
• sea wind retrieval

The possibility of recovering sea surface wind vectors from near-nadiral cross-track Ku-or Ka-band backscatter measurements using a measuring geometry similar to that of the Airborne Precipitation Radar 2 is discussed. The cross-track scanning geometry includes diversity in both elevation and azimuth angles, allowing the possibility of both wind speed and direction retrieval to within a 180 degrees direction ambiguity. A simulation study of wind vector retrieval accuracy is performed based on the use of the %26quot;cutoff-invariant two-scale model%26quot; of sea surface backscatter returns. The results show that a maximum likelihood retrieval approach utilizing data from the cross-track scan can provide reasonable wind vector retrieval accuracy.

• 出版日期2013-11