Estimation of broadband planetary albedo from operational narrowband satellite measurements

Mathematics

Scientific paper

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Albedo, Broadband, Classifications, Coefficients, Earth Atmosphere, High Resolution, Narrowband, Radiative Transfer, Scene Analysis, Advanced Very High Resolution Radiometer, Mathematical Models, Nimbus 7 Satellite

Scientific paper

A scene independent algorithm for estimating broadband planetary (top-of-atmosphere) albedo using NOAA/AVHRR narrowband satellite data is presented. Initial results from a radiative transfer model investigation are given, followed by empirical coefficients that are deduced through multivariant regression analysis of Nimbus-7/ERB broadband data and NOAA-7/AVHRR narrowband data. Planetary schemes are grouped into five major catagories. Strong variations in the two channel AVHRR narrowband albedo observations are noted for different scene classifications which emphasize the potential error in using a single AVHRR channel 1 (0.58 to 0.68 micrometer) albedo determination as has historically been done. The results presented should allow improved albedo calculations when one is limited to AVHRR narrowband data.

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