| 摘要: |
| 运用北海研究计划期间（1988年9月—1989年9月）所采集的海面温度数据与同一期间的NOAA卫星的AVHRR遥感温度数据，检验由卢瑟福实验室提出的RAL线性模式反演的海面温度与船测海面温度之间的误差。检验结果表明，误差在0.9℃左右。由此得出结论，RAL模式应用于北海这样的小尺度海域并不十分完善（因为这个模式是根据全球大气模式提出的）。因此，有必要利用小尺度海域当地的资料，建立相应的适合于具体海域的高精度温度反演模式。 |
| 关键词: 走航数据 卫星遥感 温度反演 精度检验 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，49106056号。测绘遥感信息工程国家重点实验室资助项目 |
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| OOMPARISON BETWEEN THE SEA SURFACE TEMPERATURE FROM SATELLITE AND THE SST FROM SHIP IN THE NORTH SEA |
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Du Yong1, I．S．Robinson2
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1.Ocean University of Qingdao,Qing dao 266071;2.Southampton University,U. K. S09 5NH
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| Abstract: |
| NOAA-11 satellite raw data supplied by Dundee University satellite receiving station .were used to obtain the brightness temperature of CH3, CH4, CHS. SST from satellite was derived in terms of the retrieval formulation for SST from NOAA spacecraft sensors suggested by the Rutherford Appleton Laboratory in 1984:
day-time: Ts = C0 (α) + C1 (α) T11 + C2 (α) T12;
night-time: Ts = C0' (α) + C1' (α) T11 + C2' (α) T12 + C3' (α) T3.7;
Comparison between SST from satellite and conventional in situ SST of underway data from the North Sea Project in 1989 was made using 216 data sets. The RMS error was about 0.9°C, much larger than the predicted value. It is shown that the RAL method can be used with high accuracy in large scale region, but that in shallow water and small-scale region, a larger error will be produced. So a special retrieval model is necessary for shallow water and small sca1e region. |
| Key words: Underway data, Satellite remote sensing, Retrieval temperature, Accuracy test |
