Probability density function of ocean surface slopes from radar observations

被引：0

作者：

Hauser, Daniele ^{[1
]}

Caudal, Gerard ^{[1
]}

Guimbard, Sebastien ^{[2
]}

Mouche, Alexis ^{[2
]}

机构：

[1] Univ Versailles, IPSL, CNRS, CETP, St Quentin en Yvelines, Velizy, France

[2] IFREMER, LOS, Brest, France

来源：

IGARSS: 2007 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-12: SENSING AND UNDERSTANDING OUR PLANET | 2007年

关键词：

ocean surface; radar observations; waves surface slope probability density function; mean square slope; kurtosis;

D O I：

10.1109/IGARSS.2007.4423055

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Airborne radar observations of the sea surface at C-Band and small incidence angles are used to investigate some properties of the surface slope probability density function (pdf). The method is based on the analysis of the variation of the radar cross-section with incidence angle, assuming that the backscatter can be described by the Geometrical Optics theory. First, we show that roughness properties with scales larger than 12 cm can be analyzed in our configuration (C-Band, incidence 7 to 16 degrees). The radar data are then analyzed in terms of filtered mean square slope under the assumption of a Gaussian slope pdf. Dependence with wind speed of the upwind and total mss are analyzed and compared to various published studies. Finally an analysis of the radar data under a non-Gaussian assumption for the slope pdf is proposed, by applying the compound model suggested by Ill.

引用

页码：1346 / 1349

页数：4

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