Comparison of NOAA/AVHRR-2 sea surface temperatures with surface measurements in coastal waters

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Abstract
Sea surface temperatures (SSTs) derived from the Advanced Very High Resolution Radiometer (AVHRR-2) on the NOAA-7 and NOAA-9 satellites arc compared with measurements taken from a boat in coastal waters off Fremantle, Western Australia. The satellite temperatures have been corrected for atmospheric water vapour, using seven published algorithms. The two most appropriate algorithms for our data set result in 'boat-minus-satellite' biases of about 0-2 deg C and —0-1 degC, with R.M.S. errors of about 0-6 deg C. The satellite temperature transects are shown to reproduce satisfactorily the seasonally reversing cross-shelf gradients as well as the finer thermal structure, demonstrating the value of high-resolution satellite SST measurements in continental shelf regions.

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