Počet záznamů: 1
Hydrometeor Distribution and Linear Depolarization Ratio in Thunderstorms
- 1.
SYSNO ASEP 0525505 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Hydrometeor Distribution and Linear Depolarization Ratio in Thunderstorms Tvůrce(i) Sokol, Zbyněk (UFA-U) RID, ORCID
Minářová, Jana (UFA-U) RID, ORCID
Fišer, Ondřej (UFA-U) RID, ORCIDCelkový počet autorů 3 Číslo článku 2144 Zdroj.dok. Remote Sensing. - : MDPI
Roč. 12, č. 13 (2020)Poč.str. 20 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova cloud radar ; thunderstorm ; LDR ; hydrometeor ; hydrometeor classification ; lightning ; discharge Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences Způsob publikování Open access Institucionální podpora UFA-U - RVO:68378289 UT WOS 000550834600001 EID SCOPUS 85087547686 DOI 10.3390/rs12132144 Anotace The distribution of hydrometeors in thunderstorms is still under investigation as well as the process of electrification in thunderclouds leading to lightning discharges. One indicator of cloud electrification might be high values of the Linear Depolarization Ratio (LDR) at higher vertical levels. This study focuses on LDR values derived from vertically pointing cloud radars and the distribution of five hydrometeor species during 38 days with thunderstorms which occurred in 2018 and 2019 in Central Europe, close to our radar site. The study shows improved algorithms for de-aliasing, the derivation of vertical air velocity and the classification of hydrometeors in clouds using radar data. The comparison of vertical profiles with observed lightning discharges in the vicinity of the radar site (≤1 km) suggested that cloud radar data can indirectly identify “lightning” areas by high LDR values observed at higher gates due to the alignment of ice crystals, likely because of an intensified electric field in thunderclouds. Simultaneously, the results indicated that at higher gates, there is a mixture of several hydrometeor species, which suggests a well-known electrification process by collisions of hydrometeors Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2021 Elektronická adresa https://www.mdpi.com/2072-4292/12/13/2144/htm
Počet záznamů: 1