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Springer Geology

ISSN:21979545
eSSN:2197-9553

2022

Shumeyko, I.P.¹

Abramovich, A.Y.¹

10.1007/978-3-030-76328-2_37

Correct interpretation and application of remote sensing data from spacecraft requires detailed information about the sea surface. The structure and variability of the sea surface are analyzed under conditions that are most favorable for remote monitoring of processes occurring near the ocean–atmosphere boundary. Such conditions occur when the wind speed U does not exceed 5–7 m/s. Under these conditions, areas of ripples and slicks may simultaneously exist on the sea surface. Slick-ripple contrasts are clearly visible on radar and optical images of the sea surface. It is shown that linear regression equations describing the dependence of the variance of the sea surface slopes, constructed for a wide range of wind speeds, overestimate the variance of the slopes in the region of low speeds. At a wind speed of less than 5–7 m/s, the slope dispersion increases faster with increasing wind than at higher wind speeds. The simultaneous presence of slicks and ripples on the sea surface is a factor limiting the accuracy of altimetric determination of wind speed. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Light wind, Remote sensing, Ripple, Sea surface, Slick, Slope, Wind waves

2022-02-07 14:24:29