Utilization of 15-yr characteristics of weather radar and lightning data for improvement of Czech Hydrometeorological Institute’s convective storm nowcasting system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F19%3AN0000099" target="_blank" >RIV/00020699:_____/19:N0000099 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.researchgate.net/publication/337228456_Utilization_of_15-yr_characteristics_of_weather_radar_and_lightning_data_for_improvement_of_Czech_Hydrological_Institute%27s_convective_storm_nowcasting_system" target="_blank" >https://www.researchgate.net/publication/337228456_Utilization_of_15-yr_characteristics_of_weather_radar_and_lightning_data_for_improvement_of_Czech_Hydrological_Institute%27s_convective_storm_nowcasting_system</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Utilization of 15-yr characteristics of weather radar and lightning data for improvement of Czech Hydrometeorological Institute’s convective storm nowcasting system

Popis výsledku v původním jazyce

poster at 3rd European Nowcasting Conference, Madrid, Spain, 24.-26. 4. 2019. DOI: 10.13140/RG.2.2.15811.14889 abstract: Since the 90’s, the Czech Hydrometeorological Institute (CHMI) has been operating digital Czech weather radar network (CZRAD) covering whole area of the Czech Republic and its neighbourhood. Additionally CHMI has been utilizing lightning data from the Central European Lightning Detection Network (CELDN) over the same domain. Both types of data are operationally used in CHMI meteorological and hydrological forecast offices and they proved to be very useful for operational detection, monitoring and nowcasting of convective storms. Weather radar and lightning products are main inputs of CHMI’s convective storm nowcasting system. This system is based on COTREC and CELLTRACK nowcasting algorithm and web-based visualization tool JSMeteoView. Currently, CHMI is running project that includes improvement of this nowcasting system. Archive of both datasets (volumetric CZRAD measurements and CELDN lightning detections) is available in CHMI. Data from fifteen-year period 2002-2016 have roughly the same quality, therefore this time period was used to calculate long-term spatial and temporal characteristics of various weather radar and lightning products. These long-term characteristics show many quality issues of weather radar and lightning products and are also very useful for definition of decision thresholds of convective storms severity. These findings are valuable for human forecasters as well as for automatic nowcasting systems. The presentation will present these long-term characteristics and their utilization for improvement of CHMI’s convective storms nowcasting system. It will discuss relation between radar and lightning characteristics and will present also long-term characteristics of convective storms identified by the cell-oriented CELLTRACK nowcasting algorithm.

Název v anglickém jazyce

Utilization of 15-yr characteristics of weather radar and lightning data for improvement of Czech Hydrometeorological Institute’s convective storm nowcasting system

Popis výsledku anglicky

poster at 3rd European Nowcasting Conference, Madrid, Spain, 24.-26. 4. 2019. DOI: 10.13140/RG.2.2.15811.14889 abstract: Since the 90’s, the Czech Hydrometeorological Institute (CHMI) has been operating digital Czech weather radar network (CZRAD) covering whole area of the Czech Republic and its neighbourhood. Additionally CHMI has been utilizing lightning data from the Central European Lightning Detection Network (CELDN) over the same domain. Both types of data are operationally used in CHMI meteorological and hydrological forecast offices and they proved to be very useful for operational detection, monitoring and nowcasting of convective storms. Weather radar and lightning products are main inputs of CHMI’s convective storm nowcasting system. This system is based on COTREC and CELLTRACK nowcasting algorithm and web-based visualization tool JSMeteoView. Currently, CHMI is running project that includes improvement of this nowcasting system. Archive of both datasets (volumetric CZRAD measurements and CELDN lightning detections) is available in CHMI. Data from fifteen-year period 2002-2016 have roughly the same quality, therefore this time period was used to calculate long-term spatial and temporal characteristics of various weather radar and lightning products. These long-term characteristics show many quality issues of weather radar and lightning products and are also very useful for definition of decision thresholds of convective storms severity. These findings are valuable for human forecasters as well as for automatic nowcasting systems. The presentation will present these long-term characteristics and their utilization for improvement of CHMI’s convective storms nowcasting system. It will discuss relation between radar and lightning characteristics and will present also long-term characteristics of convective storms identified by the cell-oriented CELLTRACK nowcasting algorithm.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů