ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 3, pp. 127-136

Land air temperature retrieval from microwave Meteor-M N. 1 data

E. Kramchaninova , A. Uspensky 
SRC Planeta, 123242, Moscow, B. Predtechensky, 7
A method has been developed and tested for the land air temperature Ta retrieval from microwave imager/sounder MTVZA/Meteor-M N. 1 data. A linear regression was used to derive Ta over the European region. Brightness temperatures in channels 18.7H, 23.8V, 36.7V, 91.65V were used as predictors, where V and H - vertical and horizontal polarization. The MTVZA measurements for the periods of April 2010 and April-September 2011 were taken for the case studies. The land surface emissivity values and surface types were extracted from public databases. Systematic bias of Ta retrieval and RMS error were 0.4 and 2.9 K when compared with numerical analysis. A comparison with synoptic observation gives values of 0.2 and 3.8 K respectively.
Keywords: microwave imager/sounder, surface type classification, land air temperature, brightness temperature, multiple linear regression
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