DOI: 10.5593/SGEM2016/B21/S08.086


K. Krawczyk, J. Jasinski, D. Chaladyniak, S. Pietrek
Friday 9 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-58-2 / ISSN 1314-2704, June 28 - July 6, 2016, Book2 Vol. 1, 689-696 pp

The paper presents results of multispectral analyses of imagery of the Terra and Aqua orbiting satellites and the Meteosat Second Generation geostationary satellite for detection and monitoring of convective phenomena posing threat to people and their property. The developed method of analysis of the brightness temperature and reflectance of groups of the imagery pixels applied in the research is presented. Supplementary information concerning clouds is derived from their features including characteristic shape, dimensions, internal structure and relations in the layout of various cloud types.
The presented research results include a scheme of the analysis based on single spectral channel images acquired from the satellite radiometers, differential images processed using the single channel ones and color compositions composed of both. The analysis method proposed here provides a useful tool for detection and recognition as well as accurate and fast location of areas of hazardous convective cloud cells and ensembles. It facilitates assessment of the clouds development stage and hence the type and intensity of potential threat. The synoptic conclusions from the weather conditions analyses based on the current data may be operationally used in meteorological support provided by weather offices. The meteorological data may also be used by personnel of crisis management teams as well as road maintenance and air traffic management services. Providing the capability of application of diverse sets of multispectral freely accessible satellite data for detection and assessment of convective cloud systems is especially justified in all the cases when the individual satellite images and synoptic data are not readily available.

Keywords: multispectral satellite imagery, convective clouds, MODIS, SEVIRI

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