THEMATIC PROCESSING OF AVHRR DATA TO STUDY COASTAL UPWELLING

The paper describes a technique for processing multispectral NOAA AVHR R data to support local oceanographic monitoring. Current fields are c onstructed using an algorithm based on a method of maximum cross-corre lation, taking into account the reliability of the correlation and the incidence of non-oceanic elements in the image. The MCSST method for multichannel atmospheric correction is compared with a method using te st areas. The accuracy of estimates of the sea surface temperature was 0.25-degrees-C according to the results of comparison with in situ me asurements in the coastal upwelling zone.