南海北部近岸海域Jason-1卫星高度计与浮标观测结果的对比分析*

doi:10.11978/j.issn.1009-5470.2013.05.003

Abstract

Abstract: Based on the data measured by three buoys and Jason-1 satellite altimeter in the coastal water of the northern South China Sea (SCS) from October 2010 to July 2011, the sea surface wind speed and significant wave height (H_s) from the buoys and Jason-1 are compared. The results indicate that Jason-1 data is in good agreement with the buoy data in the coastal water of the northern SCS. However, the altimeter data has a tendency to overestimate H_s, overestimate the wind speed in low sea states, and underestimate it in high sea states. The discrepancy in the H_s measured by altimeter and buoys is greatly affected by the distance between them; as the distance increases, the dispersion of H_s becomes larger; the correlation coefficient gradually decreases, and the bias and the RMS gradually increase. These results also hold for the wind speed.

Key words: coastal water, wave, wind speed, buoy, satellite altimeter

CLC Number:

P731

LIU Hua, WANG Jing, QI Yi-quan, LIU Chun-xia, HUANG Jian, LÜ Wei-hua. Comparison of Jason-1 satellite altimeter and buoy measurements in the coastal water of the northern South China Sea[J].Journal of Tropical Oceanography, 2013, 32(5): 15-22.

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Comparison of Jason-1 satellite altimeter and buoy measurements in the coastal water of the northern South China Sea

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