(The Institute of RS, Department of Geophysics, Peking University,
Beijing, 100871)
Abstract:
The land surface temperature (LST) plays an important role in the course
of interaction between land and atmosphere. The distribution of land
surface temperature with two dimensions can only be offered by remote
sensing. The retrieval of sea surface temperature (SST) has been in
operational use for a long time with "split windows" method. Is it possible
to solve LST problem by "split-windows" data? People argue on it. Many
people hope to solve missing equations by adding middle infrared
information, but new problems will be brought in. For example, how to
eliminate the effect of sun direct radiation and how to solve scattering
problem by atmospheric aerosol. This paper proves the feasibility of
retrieval of LST with accuracy less than 1 oC by digital
simulation approach only using "split windows" data. Results had been
tested by real time NOAA-AVHRR data.
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