C-band weather radar comparison of the 24th June 2021 tornado event seen by Austrian, Czech and Slovakian radar network

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F22%3AN0000120" target="_blank" >RIV/00020699:_____/22:N0000120 - isvavai.cz</a>

Výsledek na webu

<a href="https://enacshare.epfl.ch/dUQ4fCXGYPh3RbcKWFpwL#" target="_blank" >https://enacshare.epfl.ch/dUQ4fCXGYPh3RbcKWFpwL#</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

C-band weather radar comparison of the 24th June 2021 tornado event seen by Austrian, Czech and Slovakian radar network

Popis výsledku v původním jazyce

Contribution at ERAD 2022 conference, Locarno, Switzerland, 29.8.-2.9.2022. Abstract: On 24th June 2021 a devastating F4 tornado along the Austrian – Czech and Slovakian border occurred in prefrontal highly unstable westerly flow accompanied by high low level shear convective available energy around 2500 J/kg and modified storm relative helicity 0-3km approx. 250 m²/s²). The event was captured by three operational C-band weather radars of different manufacturer using different scan strategies including discrepancies in the low level coverage. Additional, the storm was seen from a variety of distances and perspectives, which influences the appearance of the storm seen by the three dual polarized Doppler weather radars. The pronounced Doppler radar signatures of supercell storms like the hook echo, bounded weak echo region and the mesocyclone was compared in terms of attenuation, shielding effects and applied data correction schemes as well as derived weather radar related products. By the other hand, the supercell storm revealed cloud microphysical structures in polarized radar data like the hydro meteor classification, large hail, debris, size-sorting and up/downdraft signatures. The presentation compares these polarized radar signature appearances seen by the three radar sites. Additional, a comparison to other tornado producing supercell storms in this area will be shown.

Název v anglickém jazyce

C-band weather radar comparison of the 24th June 2021 tornado event seen by Austrian, Czech and Slovakian radar network

Popis výsledku anglicky

Contribution at ERAD 2022 conference, Locarno, Switzerland, 29.8.-2.9.2022. Abstract: On 24th June 2021 a devastating F4 tornado along the Austrian – Czech and Slovakian border occurred in prefrontal highly unstable westerly flow accompanied by high low level shear convective available energy around 2500 J/kg and modified storm relative helicity 0-3km approx. 250 m²/s²). The event was captured by three operational C-band weather radars of different manufacturer using different scan strategies including discrepancies in the low level coverage. Additional, the storm was seen from a variety of distances and perspectives, which influences the appearance of the storm seen by the three dual polarized Doppler weather radars. The pronounced Doppler radar signatures of supercell storms like the hook echo, bounded weak echo region and the mesocyclone was compared in terms of attenuation, shielding effects and applied data correction schemes as well as derived weather radar related products. By the other hand, the supercell storm revealed cloud microphysical structures in polarized radar data like the hydro meteor classification, large hail, debris, size-sorting and up/downdraft signatures. The presentation compares these polarized radar signature appearances seen by the three radar sites. Additional, a comparison to other tornado producing supercell storms in this area will be shown.

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

2022

Kód důvěrnosti údajů

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