Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B8, 281-284, 2016
https://doi.org/10.5194/isprs-archives-XLI-B8-281-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
23 Jun 2016
DETECTION OF DRY INTRUSION ON WATER VAPOR IMAGES OVER CENTRAL EUROPE – JUNE 2010 TO SEPTEMBER 2011
J. Novotny, K. Dejmal, F. Hudec, and P. Kolar Department of Military Geography and Meteorology, University of Defence, Kounicova 65, Brno, The Czech Republic
Keywords: Potential Vorticity Anomaly, WV Satellite Imagery, Dry Intrusion, Tropopause, Severe Convection, ISIS Method Abstract. The knowledge of evaluation of the intensity of cyclogenesis which could be connected with the weather having a significant impact on Earth’s surface is quite useful. If, as one of the basic assumptions, the existence of connection between dry intrusions, dry bands, tropopause height and warm dark areas distribution on water vapor images (WV images) is considered, it is possible to set up a method of detecting dry intrusions on searching and tracking areas with higher brightness temperature compared with the surrounding environment. This paper covers the period between June 2010 and September 2011 over Central Europe. The ISIS method (Instrument de Suivi dans I’Imagerie satellitaire), originally developed for detection of cold cloud tops, was used as an initial ideological point. Subsequently, this method was modified by Michel and Bouttier for usage on WV images. Some of the applied criteria and parameters were chosen with reference to the results published by Michel and Bouttier as well as by Novotny. The procedure can be divided into two steps: detection of warm areas and their tracking. Cases of detection of areas not evidently connected with dry intrusions can be solved by filtering off based on the connection between detected warm areas to the cyclonic side of jet streams and significant lowering of the tropopause.
Conference paper (PDF, 655 KB)


Citation: Novotny, J., Dejmal, K., Hudec, F., and Kolar, P.: DETECTION OF DRY INTRUSION ON WATER VAPOR IMAGES OVER CENTRAL EUROPE – JUNE 2010 TO SEPTEMBER 2011, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B8, 281-284, https://doi.org/10.5194/isprs-archives-XLI-B8-281-2016, 2016.

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