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ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 3, pp. 9-16

Spatio-temporal interpolation of satellite radiometric data for the study of tropical cyclogenesis

D.M. Ermakov 1, A.P. Chernushich 2, E.A. Sharkov 3, Ya.N. Shramkov 3
1 Institute of Radioengineering and Electronics of RAS, Fryazino department Space Research Institute of RAS, 141190 Fryazino, Moscow region, 1 Vvedenskogo sq 117997 Moscow, 84/32 Profsoyuznaya Str
2 Institute of Radioengineering and Electronics of RAS, Fryazino department, 141190 Fryazino, Moscow region, 1 Vvedenskogo sq
3 Space Research Institute of RAS, 117997 Moscow, 84/32 Profsoyuznaya Str
Study of global tropical cyclogenesis requires regular global-scale microwave measurements of the ocean with temporal resolution of 6 hours or better. Unfortunately, satellite instruments on existing constellations can not provide uniform remote data with such characteristics. To overcome this shortage a new method of interpolation of remote data is introduced. In first, linear approximation a known formal approach to spatiotemporal interpolation of sequence of images is applied, which describes "kinematics" of the process observed regardless to its physical nature. With the use of multi-channel remote data of SSM/I instrument the applicability of this linear approach to the task of tracing of brightness contrasts formed by developing tropical cyclones was investigated. Interpolation quality was controlled with the use of information extracted from the "Global-TC" database, developed and being supported at IKI RAS. Data processing and joint analysis was performed by means of the "Stream Handler" software platform of the "File X ltd" company, Israel. The ways of further development of the approach are discussed.
Keywords: global tropical cyclogenesis, remote data interpolation
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