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Communication Dans Un Congrès Année : 1993

A method for an accurate in-flight calibration of AVHRR data for vegetation index calculation

(1) , (2)
1
2
Lucien Wald

Résumé

A significant degradation in the Advanced Very High Resolution Radiometer (AVHRR) responsitivity, on the NOAA satellite series, has occurred since the prelaunch calibration and with time since launch. This affects the index vegetation (NDVI), which is an important source of information for monitoring vegetation conditions on regional and global scales. Many studies have been carried out which use the Viewing Earth calibration approach in order to provide accurate calibration correction coefficients for the computation of the vegetation index using the visible and near-infrared spectral channels 1 and 2 of AVHRR. In the work reported here, we present an accurate, simple and promising method using high reflective clouds as a target to calibrate the vegetation index derived from AVHRR data.
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Dates et versions

hal-00466449 , version 1 (20-04-2010)

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  • HAL Id : hal-00466449 , version 1

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Mbarek Asmami, Lucien Wald. A method for an accurate in-flight calibration of AVHRR data for vegetation index calculation. 12th EARSeL Symposium “Remote sensing for monitoring the changing environment of Europe”, 1992, Budapest, Hungary. pp.53-57. ⟨hal-00466449⟩
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