卫星遥感南海海表面日增温的时空变化特征*

doi:10.11978/j.issn.1009-5470.2014.02.003

Abstract

Abstract: Satellite-derived sea surface temperature (SST) data from the MODIS (moderate resolution imaging spectroradiometer)/ Aqua, AMSR-E (advanced microwave scanning radiometer for the earth observing system)/Aqua and MODIS/Terra over the past ~10 years are analyzed to investigate the sea surface diurnal warming in the South China Sea (SCS). The results reveal that sea surface diurnal warming derived by MODIS/Aqua is slightly higher than that by AMSR-E/Aqua and MODIS/Terra, due to the differences in satellite transit time, sampling manner and retrieval algorithm, among others. However, there are no significant biases in terms of spatial and temporal distributions, and of the variation of sea surface diurnal warming over the SCS. The magnitude of sea surface diurnal warming in the SCS is the weakest during winter, and the strongest during spring. The magnitude is generally larger in the southern regions than in the central and northern regions, and is larger in the eastern regions than in the western regions. Northwest of the Luzon Strait, the sea surface diurnal warming tends to appear easily from late spring to early summer. It is suggested that the seasonal variation of sea surface diurnal warming in the SCS be affected by solar radiation, wind speed and cloud amount; among them, the wind speed is the most important factor with a significant negative correlation with the diurnal warming.

Key words: sea surface temperature, sea surface diurnal warming, temporal and spatial distribution, South China Sea, satellite remote sensing

CLC Number:

LIN Rui, ZHANG Cai-yun, LI Yan. Satellite observation of the temporal and spatial variation of sea surface diurnal warming in the South China Sea[J].Journal of Tropical Oceanography, 2014, 33(2): 17-27.

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Satellite observation of the temporal and spatial variation of sea surface diurnal warming in the South China Sea

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