Improvement of methods for satellite monitoring of the world ocean state is one of the most important areas of the remote sensing because of the influence the oceans have on the Earth's climate. Currently, only one parameter is measured on a regular basis on a global scale: the significant wave height which is obtained from spaceborne radar altimeter data. It is known that at small incidence angles within the framework of Kirchhoff approximation, the backscattering radar cross section depends mainly on the mean square slope (mss) of the sea surface; therefore, this parameter can be measured. The performed studies lead to the improvement of the methods for processing the data from a precipitation radar. We demonstrate that the mss of the large‐scale (compared to the radar wavelength) sea waves can be restored within the swath, that is, about 115 km wide. The aim of this work is to communicate these new possibilities to the broad research community involved in the studies of the oceans. In this paper, a review of the results is performed and the prospects for global monitoring are first shown. On the basis of the precipitation radar data, it becomes possible to measure global fields of sea wave slopes, which in turn will help scientists to analyze the processes of air‐sea interaction. Availability of this new mss parameter essentially doubles the amount of available descriptors of sea waves, which will advance the understanding of the processes occurring in the oceans.

中文翻译：

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海洋表面的高级视图

由于海洋对地球气候的影响，改进对世界海洋状况的卫星监测方法是遥感最重要的领域之一。当前，仅在全球范围内定期测量一个参数：从星载雷达高度计数据获得的重要波高。众所周知，在基尔霍夫近似框架内的小入射角处，后向散射雷达的横截面主要取决于海面的均方斜率（mss）。因此，可以测量该参数。进行的研究导致处理降水雷达数据的方法的改进。我们证明了mss大范围（相对于雷达波长）的海浪可以在条带内恢复，即约115公里宽。这项工作的目的是将这些新的可能性传达给参与海洋研究的广大研究团体。在本文中，对结果进行了回顾，并首次显示了全球监测的前景。在降水雷达数据的基础上，有可能测量海浪坡度的整体场，这反过来将有助于科学家分析海海相互作用的过程。这个新的mss参数的可用性实质上使海浪的可用描述符数量增加了一倍，这将促进对海洋中发生的过程的理解。