Title :
Removing the thermal component of the NOAA-AVHRR Channel 3 in cloudy conditions
Author :
Pérez, Juan C. ; Herrera, Félix ; Rosa, Fernando ; González, Albano
Author_Institution :
Dept. de Fisica Fundamental y Exp., Univ. de La Laguna, Spain
Abstract :
In this paper, an operational method for the extraction of the solar component from the AVHRR-Channel 3 radiance, is addressed. This is based on the implementation of a simple radiative transfer model that explains the radiative behavior of each pixel in the image. The outputs of the model are expressed in terms of brightness temperature differences between Channels 3 and 4 (BTD34). As a first step, the model behavior is proved for night images and then it is inverted for daylight ones, supplying the two contributions from the total radiance detected by the sensor
Keywords :
atmospheric radiation; atmospheric techniques; clouds; radiative transfer; remote sensing; Channel 3 radiance; NOAA-AVHRR Channel 3; brightness temperature differences; cloudy conditions; daylight images; extraction; night images; radiative behavior; radiative transfer model; solar component; thermal component; Atmosphere; Atmospheric modeling; Brightness temperature; Clouds; Image sensors; Laboratories; Meteorology; Pixel; Satellites; Temperature sensors;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.699570
