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RESEARCH PRODUCT

A methodology for obtaining the crop temperature from NOAA-9 AVHRR data

Vicente CasellesJosé A. Sobrino

subject

PixelRough surfaceEmissivityGeneral Earth and Planetary SciencesPlant coverEnvironmental scienceTemperature differenceVegetationTemperature measurementRemote sensingCitrus fruit

description

Abstract In this paper a methodology for obtaining the crop temperature from NOAA-9 AVHRR data has been developed, which is based on a theoretical model that permits interpreting the remote sensing temperature measurement in heterogeneous and rough surfaces. This procedure determines the crop temperature by evaluating prsviously: (1) the temperature difference between crop and ground, (2) the atmospheric and emissivity corrections, (3) the ground and vegetation emissi-vities in the AVHRR bands 4 (10-3-11-3 μm) and 5 (11 -5-12-5 μm), and (4) the proportion of ground in each pixel. We have applied this method to obtain a map of orange-tree temperatures for the Valencian region and satisfactory results have been obtained.

https://doi.org/10.1080/01431169108955280