Development of geophysical retrieval algorithms for the MIMR

Jouni Pulliainen; Juha-Petri Kärnä; Martti Hallikainen

doi:10.1109/36.210466

Development of geophysical retrieval algorithms for the MIMR

Jouni Pulliainen, Juha-Petri Kärnä, Martti Hallikainen

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

46 Citations (Scopus)

Abstract

The feasibility of using spaceborne microwave radiometry to retrieve geophysical parameters is described. The study concentrates on the development of inversion techniques for multichannel spaceborne radiometers, especially the statistical inversion approach. The applications of the planned MIMR (Multi-Frequency Imaging Microwave Radiometer) instrument are discussed. The inversion algorithms used are conventional algorithms for different applications and the statistical inversion approach. Comparisons between results from different inversion algorithms are presented. The statistical inversion approach has been found to give promising parameter retrieval accuracies and has the potential to improve the operational use of passive spaceborne remote sensing. An analysis of the sensitivity of the radiometer apparent temperature to different geophysical parameters and the statistical behavior of the atmospheric transmissivity are presented.

Original language	English
Pages (from-to)	268 - 277
Number of pages	10
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	31
Issue number	1
DOIs	https://doi.org/10.1109/36.210466
Publication status	Published - 1993
MoE publication type	A1 Journal article-refereed

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Pulliainen, J., Kärnä, J-P., & Hallikainen, M. (1993). Development of geophysical retrieval algorithms for the MIMR. IEEE Transactions on Geoscience and Remote Sensing, 31(1), 268 - 277. https://doi.org/10.1109/36.210466

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AB - The feasibility of using spaceborne microwave radiometry to retrieve geophysical parameters is described. The study concentrates on the development of inversion techniques for multichannel spaceborne radiometers, especially the statistical inversion approach. The applications of the planned MIMR (Multi-Frequency Imaging Microwave Radiometer) instrument are discussed. The inversion algorithms used are conventional algorithms for different applications and the statistical inversion approach. Comparisons between results from different inversion algorithms are presented. The statistical inversion approach has been found to give promising parameter retrieval accuracies and has the potential to improve the operational use of passive spaceborne remote sensing. An analysis of the sensitivity of the radiometer apparent temperature to different geophysical parameters and the statistical behavior of the atmospheric transmissivity are presented.

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