Title :
Some ideas for iterative estimation of atmospheric condition, surface temperature and emissivity
Author :
Matsumoto-Moriyama, Masao ; Arai, Kohei
Author_Institution :
Fac. of Eng., Nagasaki Univ., Japan
Abstract :
A method for emissivity-temperature separation for a multispectral thermal IR sensor, such as ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) onboard the EOS-a1 satellite is proposed. Based on the well-known radiative transfer equation, assuming that water vapor is the most dominant factor for transmittance and a representative atmospheric radiation, the number of unknown variables in the equation is reduced. Then, utilizing the constrained nonlinear optimization technique, the equation is solved to estimate both emissivity and surface temperature in a certain area
Keywords :
geophysical techniques; oceanographic techniques; radiometry; remote sensing; terrestrial heat; ASTER; EOS; IR radiometry; atmosphere; atmospheric condition; emissivity; geophysical measurement technique; iterative estimation; land surface temperature; method; multispectral thermal IR sensor; ocean; radiative transfer equation; remote sensing; sea surface temperature; Atmospheric waves; Constraint optimization; Infrared sensors; Land surface temperature; Nonlinear equations; Radiometry; Reflection; Satellites; Temperature sensors; Thermal sensors;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322669
