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Record #97058:

An algorithm for snow and ice detection using AVHRR data. An extension to the APOLLO software package / G. Gesell.

Title: An algorithm for snow and ice detection using AVHRR data. An extension to the APOLLO software package / G. Gesell.
Author(s): Gesell, G.
Date: 1989.
In: International Journal of Remote Sensing. (1989.), Vol. 10(4-5) (1989)
Abstract: AVHRR (Advanced Very High Resolution Radiometer) Processing scheme Over Land, cLoud and Ocean (APOLLO) is used to extract surface and cloud parameters from satellite data. Before these parameters can be computed, it is necessary to distinguish between land and ocean surfaces, and to apply algorithms for detection of partially cloudy and cloud-filled pixels. In regions with seasonal or permanent snow and ice coverage, separation of clouds becomes more difficult. For this reason, and to find cloud-free and partly cloudy snow and ice pixels, day-time algorithm has been developed which uses all five AVHRR channels. Tests of this algorithm applied to AVHRR data from 1987 Baltic Sea ice season have shown reasonable classification results with exception of areas with ice clouds or ice-topped water clouds.
Notes:

International Journal of Remote Sensing. Vol. 10(4-5) :897-905 (1989).

Special issue: applications of AVHRR data.

Keywords: 53.087.23 -- Remote sensing.
551.32 -- Glaciology.
629.783 -- Satellites.
551.578.461 -- Snow cover, methods of reporting and coding.
551.326.025 -- Floating ice, surface detection.
E3 -- Glaciology: instruments and methods.
SPRI record no.: 97058

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520 3# ‡aAVHRR (Advanced Very High Resolution Radiometer) Processing scheme Over Land, cLoud and Ocean (APOLLO) is used to extract surface and cloud parameters from satellite data. Before these parameters can be computed, it is necessary to distinguish between land and ocean surfaces, and to apply algorithms for detection of partially cloudy and cloud-filled pixels. In regions with seasonal or permanent snow and ice coverage, separation of clouds becomes more difficult. For this reason, and to find cloud-free and partly cloudy snow and ice pixels, day-time algorithm has been developed which uses all five AVHRR channels. Tests of this algorithm applied to AVHRR data from 1987 Baltic Sea ice season have shown reasonable classification results with exception of areas with ice clouds or ice-topped water clouds.
650 07 ‡a53.087.23 -- Remote sensing.‡2udc
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a629.783 -- Satellites.‡2udc
650 07 ‡a551.578.461 -- Snow cover, methods of reporting and coding.‡2udc
650 07 ‡a551.326.025 -- Floating ice, surface detection.‡2udc
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