Title :
Geometric integration of NOAA AVHRR and SPOT data: low resolution effective parameters from high resolution data
Author :
Moreno, Jose F. ; Gandia, Soledad ; Meliá, Joaquin
Author_Institution :
Dept. of Thermodynamics, Valencia Univ., Spain
fDate :
9/1/1992 12:00:00 AM
Abstract :
Information available from ephemeris data, combined with a few ground control points, is used to carry out the geometric combination of NOAA, AVHRR, and SPOT images by means of orbital models for each satellite. The observation conditions are reconstructed and the areas observed in common determined in the SPOT image pixels and each low-resolution AVHRR pixel. The determination of effective parameters, at low spatial resolution, from high-spatial-resolution data takes into account overlapping effects between adjacent pixels, and pixel size and shape variations with viewing angle for AVHRR data. The method is applied to surface temperature mapping of a selected heterogeneous area by incorporating NOAA AVHRR thermal data in a high-spatial-resolution emissivity map derived from SPOT data
Keywords :
geophysical techniques; remote sensing; NOAA AVHRR; SPOT; effective parameters; geometric integration; high resolution data; land surface; low resolution; measurement; remote sensing; spatial resolution; technique; temperature mapping; Biological system modeling; Image reconstruction; Image resolution; Pixel; Satellites; Shape; Solid modeling; Spatial resolution; Temperature; Vegetation mapping;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
