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Removing the impact of wind direction on remote sensing of sea surface salinity

机译:消除风向对海面盐度遥感的影响

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摘要

Using the smail-siope approximation model of microwave emission of rough sea surface, the impacts of sea surface wind on brightness temperature variations generated by the surface roughness, i.e. DELAT T_(h,v), are investigated. Here AT denotes the brightness temperature variation, and "h" and "V" denote the horizontal and vertical polarizations respectively. Alphas a linear relation with wind speed, sea surface temperature (SST) and sea surface salinity (SSS) respectively. Further more, the impact of wind direction on SSS retrieval, under small incidence angles, can be removed by calculating (DELAT T_h+ DELTA T_v). These characteristics provide simple new ways to develop an SSS retrieval algorithm without wind direction factor.
机译:使用粗糙海面微波发射的smail-siope近似模型,研究了海面风对由表面粗糙度产生的亮度温度变化的影响,即DELAT T_(h,v)。在此,AT表示亮度温度变化,“ h”和“ V”分别表示水平偏振和垂直偏振。分别与风速,海面温度(SST)和海面盐度(SSS)呈线性关系。此外,在小入射角下,风向对SSS取回的影响可以通过计算(DELAT T_h + DELTA T_v)消除。这些特征为开发无风向因素的SSS检索算法提供了简单的新方法。

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