Algorithm for the Sea Surface Wind Imaging Products of Fengyun-3C Meteorological Satellite MWRI

• 作者: Dawei An Fangli Dou Peng Zhang
• 来源期刊: 地球科学和环境保护期刊(英文)
• 学科: 地球科学
• 关键词: MICROWAVE RADIOMETER Sea Surface WIND SPEED MWRI Fengyun-3C METEOROLOGICAL Satellite
• 年，卷（期）: 2017,（7）
• 页码范围: 49-58
• 页数: 10页
• 分类号: P4

摘要

This paper analyzes the sea surface backward thermal radiation data in the China Sea observed by the mmwave channel of FY3 MWRI, explains the reason for which the analysis method combined with multiple mmwave channels is conducive to wind inversion, uses the complex model of the two-scale randomly rough surface with foam scattering layer to calculate the backward heat emission, analyzes the different response characteristics of the thermal radiation characteristics of each channel with the change of the sea surface wind speed, and establishes the wind speed inversion model applying to the microwave radiometer, achieving better results than in previous studies. The sea surface medium-low wind speed precision standard deviation of new model reaches 1.2 m/s (0 - 15 m/s);the inversion strong wind data are consistent with the island fixed buoys data, and the global sea surface wind speed image schematic diagram is given.