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There are few researches on offshore gusts at home and abroad, and most of them focus on gust prediction and application research. There is no systematic discussion on the acquisition technology of wind gust data. Based on the backscattering coefficient observed by HY-2B satellite radar altimeter and the brightness temperature information observed by correction microwave radiometer, a method for retrieving gust wind speed is proposed in this paper. The gust wind speed obtained from the joint inversion of the two remote sensing sensors is verified with the National Data Buoy Center (NDBC) buoy data from 2019 to 2021. The results show that the gust wind speed root mean square error (RMSE) is 0.98 m/s and the correlation coefficient is 0.82. The RMSE of the gust wind speed obtained based on the method using a similar satellite Jason-3 is 0.96 m/s and the correlation coefficient is 0.88. Based on the observation of sea surface wind speed with HY-2B satellite radar altimeter and the synchronous observation information of correction microwave radiometer by satellite platform, the observation of sea surface wind gust is realized jointly. The comparison results of data show that the method in this paper has high observation accuracy. At the same time, this method is also applicable to domestic and foreign satellites with the same observation system. This provides a simple and reliable means of ocean remote sensing technology for the current situation of insufficient observation capacity of offshore wind gust.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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