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海表面亮温是反演海表面盐度的关键。从不同海表面亮温参数与海表面盐度的关系入手,利用2014年7月8日西北太平洋区域SMOS(Soil Moisture and Ocean Salinity)卫星L1C数据和Argo实测盐度数据,使用数据拟合、显著性检验、偏相关分析和广义相加模型等方法,分析了海表面盐度SSS(Sea Surface Salinity)与SMOS卫星不同极化方式和不同入射角亮温参数的相互关系,并得到以下结论:水平极化亮温、垂直极化亮温、第一斯托克斯参数和第二斯托克斯参数4种亮温参数与入射角具有较强的相关性,水平极化亮温、第一斯托克斯参数与海表面盐度相关性较好,其中12.5°第一斯托克斯参数为反演海表面盐度的最佳亮温参数。
Sea surface brightness is the key to invert salinity of sea surface. Based on the relationship between different sea surface brightness temperature parameters and the sea surface salinity, the data were fitted by using L1C data and Argo salinity data of SMOS (Soil Moisture and Ocean Salinity) on July 8, 2014 in the Northwest Pacific Ocean. Correlation analysis of sea surface salinity and different polarization modes of SMOS satellites and different angles of incidence with different angles of incidence, the following conclusions are drawn: the level Polarized light temperature, vertical polarized light temperature, the first Stokes parameters and the second Stokes parameters of four kinds of bright temperature parameters and angle of incidence has a strong correlation, the level of polarized light temperature, the first Sri Lankan The correlation between the TOX parameters and sea surface salinity is good, and the first Stokes parameter of 12.5 ° is the best parameter of brightness temperature for inverting sea surface salinity.