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利用卫星遥感SST、SSH联合反演南海北部三维温度场
汤博, 侯一筠, 殷玉齐, 胡珀
中国科学院海洋研究所
摘要:
本文利用历史观测得到的温度剖面数据,通过严格筛选和插值,建立了南海北部的气候态垂向温度剖面。随后,利用回归统计分析的方法构建了海面温度异常(SST)、海面高度异常(SSH)联合扩展温度剖面的经验回归模型,并采用卫星遥感得到的SST和SSH数据扩展了南海北部的三维海洋温度场,其时间分辨率为天,空间分辨率为0.25°×0.25°。通过与观测数据的对比研究,扩展得到的温度场可以较为准确地反映南海北部温度剖面的结构特征,并且能有效地体现出一些中尺度变化过程。结果表明本文反演得到的三维温度扩展场是较为可靠的,它可以作为海洋数值模型的初始场,实现现场观测数据和卫星遥感数据的互补,有助于更好的分析南海北部温度的三维结构及变化特征。
关键词:  南海北部  卫星遥感SST和SSH  反演三维温度场
DOI:10.11759/hykx20190312002
分类号:
基金项目:国家自然科学基金
Inversion of three-dimensional temperature field in the northern of the South China Sea by remote satellite sea surface temperature and height
tangbo, Hou,Yijun, Yin,Yuqi, Hu,po
Institute of Oceanology, Chinese Academy of Sciences
Abstract:
Based on the historical observed temperature profiles data, a static climate temperature field were established by the strict screening and interpolation. Then the regression analysis was used to build an empirical regression model in order to invert temperature profiles by SST (sea surface temperature) anomaly and SSH (sea surface height) anomaly, and a three-dimensional temperature field was expanded in the northern of the South China Sea by remote satellite SST and SSH, whose temporal resolution is daily and spatial resolution is 0.25°×0.25°. Compared with the observational data, the expanded temperature field can accurately reflect the structure of the temperature profiles and well describe some mesoscale variability in the northern of South China Sea. The results showed that the expanded temperature field is reliable and it can be used as the initial field of the numerical model to realize the complementarity between observed data and satellite data, which is helpful to better analyze the three-dimensional structure and variation characteristics of the temperature in the northern of the South China Sea.
Key words:  northern of the South China Sea  satellite sea surface temperature and height  inversion of three-dimensional temperature field
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