Cloud Electrification Model in COSMO Numerical Weather Prediction model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F19%3A00508140" target="_blank" >RIV/68378289:_____/19:00508140 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/8815980/references#references" target="_blank" >https://ieeexplore.ieee.org/document/8815980/references#references</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/APL.2019.8815980" target="_blank" >10.1109/APL.2019.8815980</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cloud Electrification Model in COSMO Numerical Weather Prediction model

Popis výsledku v původním jazyce

We developed a Cloud Electrification Model (CEM) and implemented it in the microphysical scheme of the COSMO non-hydrostatic and convection-permitting 2-moment numerical weather prediction model. CEM explicitly describes the electrification of a thundercloud,, it explicitly treats the ion motion including the interaction of ions with six kinds of hydrometeors (cloud water, ice, graupel, rain, snow, and hail). Charge concentration within the hydrometeors as well as the change of the concentration are both computed by CEM within the cloud microphysical scheme of COSMO. The charging mechanism in CEM is primarily due to the non-inductive mechanism, which leads to the charge separation and transfer, although we consider the inductive charging mechanism in CEM as well. Based on simulations of an artificially induced thundercloud, i.e. warm air bubble, CEM shows rather complicated electric charge structure in the thundercloud. The concentration of the negative charges is mostly connected to high concentrations of graupel, ice, and snow that frequently collide to transfer their charges.

Název v anglickém jazyce

Cloud Electrification Model in COSMO Numerical Weather Prediction model

Popis výsledku anglicky

We developed a Cloud Electrification Model (CEM) and implemented it in the microphysical scheme of the COSMO non-hydrostatic and convection-permitting 2-moment numerical weather prediction model. CEM explicitly describes the electrification of a thundercloud,, it explicitly treats the ion motion including the interaction of ions with six kinds of hydrometeors (cloud water, ice, graupel, rain, snow, and hail). Charge concentration within the hydrometeors as well as the change of the concentration are both computed by CEM within the cloud microphysical scheme of COSMO. The charging mechanism in CEM is primarily due to the non-inductive mechanism, which leads to the charge separation and transfer, although we consider the inductive charging mechanism in CEM as well. Based on simulations of an artificially induced thundercloud, i.e. warm air bubble, CEM shows rather complicated electric charge structure in the thundercloud. The concentration of the negative charges is mostly connected to high concentrations of graupel, ice, and snow that frequently collide to transfer their charges.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

—

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

Název statě ve sborníku

2019 11th Asia-Pacific International Conference on Lightning (APL)

ISBN

978-1-7281-1694-5

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

1-5

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Hong Kong

Datum konání akce

12. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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