Validation of microwave emission models by simulating AMSR-E brightness temperature data from ground-based observations

For several applications, spaceborne microwave measurements are used to get large scale information of snow- covered terrain. Emission models for soil, vegetation and snow are needed in extraction of snow parameters from satellite measurements. In this paper space-observed brightness temperature of...

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Published in2007 IEEE International Geoscience and Remote Sensing Symposium pp. 1440 - 1443
Main Authors Kontu, A., Pulliainen, J., Heikkinen, P., Suokanerva, H., Takala, M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2007
Subjects
Brightness temperature
Data mining
Frequency
Large-scale systems
Microwave measurements
Reflectivity
Satellites
Snow
Soil measurements
Vegetation mapping
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Summary:For several applications, spaceborne microwave measurements are used to get large scale information of snow- covered terrain. Emission models for soil, vegetation and snow are needed in extraction of snow parameters from satellite measurements. In this paper space-observed brightness temperature of snow-covered terrain is simulated from in situ measurements using HUT snow model, rough bare soil reflectivity model and boreal forest emission model. The results are compared with AMSR-E data. Correlations of time series between simulated and measured brightness temperatures were best on the highest frequencies being better than 0.7 on frequencies above 18 GHz.
ISBN:9781424412112
1424412110
ISSN:2153-6996
2153-7003
DOI:10.1109/IGARSS.2007.4423078