Contrastive study on day and night sea surface wind speed detection using CALIPSO lidar measurements

Abstract

Abstract:

For retrieving sea surface wind speed, good results have been achived with CALIPSO lidar night data. During the daytime, spaceborne lidar has a poor signal to noise ratio due to the irradiation of direct sunlight and the sky. Based on the existing retrieval model, sea surface wind speeds of day and night are retrieved using CALIPSO lidar 532 nm day and night single-shot data of January, April, July and October in 2007, with AOD for two-way atmospheric transmittance. The collocated version 7 AMSR-E sea surface wind speeds are used as the true values for comparison. The results show that, it is feasible to use CALIPSO daytime lidar data for sea surface wind speed retrieval, and the precision can be increased with the use of appropriate retrieval model.

Key words: laser techniques, sea surface wind speed, contrast of day and night, precision

SUN Yuchen, WU Dong. Contrastive study on day and night sea surface wind speed detection using CALIPSO lidar measurements[J]. J4, 2013, 30(1): 29-35.

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