Simultaneous Tuning of Water Vapour and Atmospheric Temperature for Determination of Sea Surface Temperature from AVHRR
نویسندگان
چکیده
A novel physics-based method for determination of sea surface temperature (SST) from AVHRR is explained in detail. Starting from the equation of radiative transfer in the mean value approximation, we use variational calculus to derive an expression relating the difference between the radiance calculated using a first guess atmospheric profile and the observed satellite radiance (∆I), to the corresponding changes in atmospheric temperature (∆T ) and water vapour (∆u). By requiring the same SST to be predicted in channels 4 and 5, while keeping ∆I = 0, we estimate the SST.
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تاریخ انتشار 1998