来自中国东南亚海洋卫星HY-1C的海面温度数据的质量分析和校正
Weifu Sun1, Chalermrat Sangmanee2, Yuanchi Jiang3
1Lab of Marine Physics and Remote Sensing, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China.
Sensors (Basel, Switzerland)
|September 28, 2023
概括
中国中国中国中国.
科学领域:
- 海洋学 海洋学 海洋学
- 遥感 遥感 遥感 遥感
- 卫星海洋学 卫星海洋学
背景情况:
- 中国海上卫星的海面温度 (SST) 遥感观测工作已于晚些时候开始.
- 在HY-1C卫星上的中国海洋颜色和温度扫描仪 (COCTS) 的SST数据的评估和纠正对东南亚海洋至关重要.
研究的目的:
- 对东南亚海域的COCTS/HY-1C SST数据进行质量评估和纠正.
- 提高海洋卫星SST观测的准确性.
主要方法:
- 利用多源卫星SST数据和Argo浮标温度测量进行验证.
- 对COCTS SST数据进行了准确性评估和区域校正.
主要成果:
- COCTS/HY-1C白天的SST显示偏差,Std和RMSE为-0.73°C,1.38°C和1.56°C. 这两种测试均为0.73°C,1.38°C和1.56°C.
- COCTS/HY-1C夜间的SST显示偏差,Std和RMSE分别为-0.95°C,1.57°C和1.83°C.
- 区域校正显著提高了准确性,将Std和RMSE降低到大约1°C,RMSE下降了32.52% (白天) 和42.04% (夜晚).
结论:
- COCTS SST 的精度低于其他红外辐射计.
- 区域校正方法有效地提高了COCTS SST数据的准确性.
- 改善SST数据对于该地区的海洋研究和监测至关重要.
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