光子学报, 2018, 47 (11): 1101001, 网络出版: 2018-12-17  

南海北部区域海洋水体皮温-体温模型研究

Study on Model of the Sea Surface Skin Temperature and Bulk Sea Surface Temperature in Northern Region of South China Sea
作者单位
1 西安电子科技大学 机电工程学院, 西安 710071
2 中国科学院西安光学精密机械研究所, 西安 710119
3 中国科学院大学, 北京 100049
4 国家卫星海洋应用中心, 北京 100081
摘要
针对我国海洋遥感定标检验技术, 提出海洋水体皮温-体温模型, 将海洋皮温测量精度提高至0.3℃.模型皮温数据来源于自主研制架设在南海北部PY-301石油平台上的无人值守自动多波段红外辐射系统, 通过标准黑体标定、光阑校正、天空光校正, 使海水皮温测量精度优于±0.5℃.基于模型分析了风速对海洋皮温和体温差值的影响, 并用所提模型与Donlon模型对海洋皮温测量值进行风速修正, 修正后两者偏差分别为-0.007 6±0.297 1℃和0.044 6±0.324 8℃.结果证明该模型有效且能够提高海洋皮温的测量精度.
Abstract
For the research of marine remote sensing calibration of China, a mathematical model of bulk-skin sea surface temperature is proposed to improve the measurement precision of skin sea surface temperature to 0.3℃. Skin sea surface temperature is measured by the self-designed automatic multi-spectral infrared radiometer system installed on the PY-301 oil platform in the northern part of the South China Sea, the measurement accuracy of the radiometer is better than±0.5 ℃ through standard blackbody calibration, pupil correction and skylight correction. The effect of wind speed on the bulk-skin sea surface temperature is analyzed based on the model, the skin sea surface temperature is corrected by the proposed model and Donlon model, the biases of corrected results are -0.007 6±0.297 1℃ and 0.044 6±0.324 8℃, respectively. Results prove that the proposed model is effective and can improve the measurement accuracy of skin sea surface temperature.

张建, 郝三峰, 宋庆君, 赵俍骁, 安飞. 南海北部区域海洋水体皮温-体温模型研究[J]. 光子学报, 2018, 47(11): 1101001. ZHANG Jian, HAO San-feng, SONG Qing-jun, ZHAO Liang-xiao, AN Fei. Study on Model of the Sea Surface Skin Temperature and Bulk Sea Surface Temperature in Northern Region of South China Sea[J]. ACTA PHOTONICA SINICA, 2018, 47(11): 1101001.

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