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| Pivaev, P. D.; Kudryavtsev, V. N.; Balashova, E. A.; Chapron, Bertrand. |
| Purpose. The aim of the article is to study manifestations of the underwater topography features in the northern part of the White Sea in the images made by the spaceborn synthetic aperture radars (SAR) Sentinel-1A, Sentinel-1B. Methods and Results. In the SAR images, the bottom features are revealed as bright and dark brightness anomalies. The anomalies were observed at the wind speed ranging from 2.6 to 10.8 m/s, and became reverse (bright anomalies turned dark and vice versa), when a tidal current changed its direction. It is shown that the observed SAR imagery contrasts correlate to divergence of a current formed by interaction of a tidal flow with the bottom topography inhomogeneities. The simulated SAR contrasts agree with the observations, and... |
| Tipo: Text |
Palavras-chave: Bottom topography; Sentinel-1; SAR; Wave breaking; Current divergence. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/75989/76890.pdf |
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