HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 19-28, vol. 16, 2013 Andrzej Chybicki Gdansk University of Technology, Department of Geoinformatics, Gdansk, Poland Zbigniew Łubniewski Gdańsk University of Technology, Department of Geoinformatics, Gdansk, Poland Jan Niedzielko WASAT Sp. z o.o., Warsaw, Poland Dominik Ruciński WASAT Sp. z o.o., Warsaw, Poland Key words: remote sensing of satellite; land surface temperature; NDVI Abstract: Land surface temperature (LST) plays an important role in many land-surface
processes on regional as well on global scales. It is also a good indicator of energy flux
phenomena and is used as a parameter in various Earth observation related studies.
However, LST estimation based on processing and utilisation of satellite derived data
constitutes several problems in terms of time limitations, accessibility, atmospheric influence
etc. The aim of the study was to verify and compare the algorithms especially in the context of
minimalisation of errors in LST estimation by satellite observation using various means of
GIS data processing and integration. Also, the indirect verification of the LST estimation
methods, based on the utilisation of statistics and dependencies of LST, NDVI and air
temperature values has been presented and discussed. The presented work has the form of a
case study, and due to limited amount of verification data used in the current stage of the
investigation, the results should be treated as preliminary. The developed GIS solution for
integrating spatial data from many sources needed in the course of this study is also
presented.
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