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Proceedings Paper

General split window algorithm for land surface temperature estimation
Author(s): C. O. Mito; Giovanni Laneve; Marco M. Castronuovo
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Paper Abstract

A general multichannel algorithm for land surface temperature estimation is described. It has been set up by simulations of NOAA / AVHRR-2 measurements in order to parameterize the temperature correction due to atmospheric water vapor absorption and deviation of surface emissivity from unity at 11 and 12 micrometers wavelengths. The parameterization is based on model calculations performed with FASCODE, a line - by - line radiative transfer program. A comparison with one particular algorithm1 selected by ESA to produce global thermal maps of the Earth2 shows no significant difference in the retrieved surface temperature for water vapor around 2.5 g/cm2. For greater deviations from this value of water vapor content the difference in the results can be remarkably large. Model calculations have been performed for deviations of each parameter (water vapor and surface emissivity) individually and for both parameters simultaneously. The approach used allows the application of the algorithm to other sensors. In fact, the next step of our activity on this subject envisages its application to the appropriate bands of the MODIS sensor.

Paper Details

Date Published: 28 January 2002
PDF: 8 pages
Proc. SPIE 4542, Remote Sensing for Agriculture, Ecosystems, and Hydrology III, (28 January 2002); doi: 10.1117/12.454192
Show Author Affiliations
C. O. Mito, University degli Studi di Roma La Sapienza (Italy)
Giovanni Laneve, Univ. degli Studi di Roma La Sapienza (Italy)
Marco M. Castronuovo, Univ. degli Studi di Roma La Sapienza (Italy)


Published in SPIE Proceedings Vol. 4542:
Remote Sensing for Agriculture, Ecosystems, and Hydrology III
Manfred Owe; Guido D'Urso, Editor(s)

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