英国北海区域卫星遥感与船测海面温度场的比较

COMPARISON BETWEEN THE SEA SURFACE TEMPERATURE FROM SATELLITE AND THE SST FROM SHIP IN THE NORTH SEA

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。

NOAA-11 satellite raw data supplied by Dundee University satellte receivingstation .Were used to obtain the brightness temperature of CH3, CH4, CH5. SSTfrom satellite was derived in terms of the retrieval formulation for SST from NOAAspacecraft sensors suggested by the Rutherford Appleton Laboratory in 1984:day-time: night-time: Comparison between SST from satellite and conventional in situ SST of underwaydata from the North Sea Project in 1989 was made using 216 data sets. The RMSerror was about 0.9℃, much larger than the predicted value. It is shown that theRAL method can be used with high accuracy in large-scale region, but that in shal-low water and small-scale region, a larger error will be produced. So a special retri-eval model is necessary for shallow water and small-scale region.