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Cb-TRAM: Tracking and monitoring severe convection from onset over rapid development to mature phase using multi-channel Meteosat-8 SEVIRI data

Zinner, Tobias and Mannstein, Hermann and Tafferner, Arnold and Forster, Caroline (2007) Cb-TRAM: Tracking and monitoring severe convection from onset over rapid development to mature phase using multi-channel Meteosat-8 SEVIRI data. 9th Plinius Conference on Mediterranean Storms, 2007-09-10 - 2007-09-13, Varenna, (I).

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Abstract

Cb-TRAM is a new fully automated tracking and nowcasting algorithm. Intense convective cells are detected, tracked and discriminated with respect to onset, rapid development, and mature phase. Finally, short range forecasts are provided. The detection is based on Meteosat-8 SEVIRI (Spinning Enhanced Visible and Infra-Red Imager) data from the broad band high resolution visible, infra-red 6.2 micrometer (water vapour), and the infra-red 10.8 micrometer channels. Areas of convection initiation, of rapid vertical development, and mature thunderstorm cells (cumulonimbus Cb) are identified. For the latter, tropopause temperature data from ECMWF operational model analyses is utilised as an adaptive detection criterion. The tracking is based on geographical overlap between current detections and first guess patterns of cells detected in preceeding time steps. The first guess patterns as well as the short range forecasts are obtained with the aid of a new image matching algorithm providing complete fields of approximate differential cloud motion. Based on the so called pyramid matcher an interpolation and extrapolation technique is presented which can also be used to generate synthetic intermediate data fields between two known fields as well as nowcasts of motion and development of detected areas. Examples of application are presented for thunderstorm tracks over the Mediterranean.

Document Type:Conference or Workshop Item (Speech)
Title:Cb-TRAM: Tracking and monitoring severe convection from onset over rapid development to mature phase using multi-channel Meteosat-8 SEVIRI data
Authors:
AuthorsInstitution or Email of Authors
Zinner, TobiasUNSPECIFIED
Mannstein, HermannUNSPECIFIED
Tafferner, ArnoldUNSPECIFIED
Forster, CarolineUNSPECIFIED
Date:July 2007
Keywords:remote sensing, nowcasting, cloud tracking and monitoring, thunderstorm
Event Title:9th Plinius Conference on Mediterranean Storms
Event Location:Varenna, (I)
Event Type:international Conference
Event Dates:2007-09-10 - 2007-09-13
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Air Traffic and Weather (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Dr. Caroline Forster
Deposited On:22 Aug 2007
Last Modified:12 Dec 2013 20:27

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