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TRPP (Tovs Radiance Pathfinder Project) was established in 1996 as part of the NASA/NOAA Pathfinder program to analyze and produce a quality radiance data set by accounting relative biases among the different HIRS/2 instruments flown in the different NOAA platforms, and incorporating better cloud clearing technique and angular corrections. Radiance is a measured quantity rather than a derived quantity that requires many physical and mathematical assumptions for its derivation. Any errors or biases in the radiance data sets will limit its usability in the climate research, as it will do in the derivation of geophysical quantities.

Project Overview