Characterization of desert areas with Meteosat-4 data for the calibration of optical satellite sensors

Helene Cosnefroy; Xavier Briottet; Marc Leroy

doi:10.1117/12.161545

15 November 1993 Characterization of desert areas with Meteosat-4 data for the calibration of optical satellite sensors

Helene Cosnefroy, Xavier Briottet, Marc Leroy

Proceedings Volume 1938, Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data; (1993) https://doi.org/10.1117/12.161545
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Desert areas are good candidates for the assessment of multitemporal, multiband or multiangular calibration of optical satellite sensors. This paper describes a selection procedure of desert zones in North Africa and Saudi Arabia, of size 100 X 100 km, using a criterion of spatial uniformity in a series of METEOSAT-4 visible data. Twenty such zones are selected with a spatial uniformity better than 3% in a multitemporal series of cloud free images. The temporal stability of the spatially averaged reflectance of each selected zone is investigated at seasonal and hourly time scales with same series of images. It is found that the temporal variations, of typical peak-to-peak amplitude 8 - 15% in relative value, are mostly controlled by directional effects, with residual rms variations, not accounted for by directional effects, of the order of 1 to 2 % in relative value.

Citation Download Citation

Helene Cosnefroy, Xavier Briottet, and Marc Leroy "Characterization of desert areas with Meteosat-4 data for the calibration of optical satellite sensors", Proc. SPIE 1938, Recent Advances in Sensors, Radiometric Calibration, and Processing of Remotely Sensed Data, (15 November 1993); https://doi.org/10.1117/12.161545

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