Počet záznamů: 1
Radar-based hail detection
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SYSNO ASEP 0393304 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Radar-based hail detection Tvůrce(i) Skripniková, Kateřina (UFA-U) RID, ORCID
Řezáčová, Daniela (UFA-U) RID, ORCIDZdroj.dok. Atmospheric Research. - : Elsevier - ISSN 0169-8095
Roč. 144, č. 1 (2014), s. 175-185Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova hail detection ; weather radar ; hail damage risk Vědní obor RIV DG - Vědy o atmosféře, meteorologie CEP GAP209/11/2045 GA ČR - Grantová agentura ČR LD11044 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFA-U - RVO:68378289 UT WOS 000336469900013 EID SCOPUS 84899622496 DOI 10.1016/j.atmosres.2013.06.002 Anotace Damaging hailstorms are rare but significant meteorological phenomena from the point of view of economic losses in central Europe. Because of the high spatial and temporal variability of hail, the proper detection of hail occurrences is almost impossible using ground station reports alone. An alternate approach uses information from weather radars. Several algorithms that use single-polarisation radar data have been developed for hail detection. In the present study, seven algorithms were tested on well documented recent hail events from Czechia and southwest Germany from 2002 to 2011. The study aimed to find the optimal threshold values for the applications of these techniques over the Czech territory and for evaluating the climatology of hail events. The results showed that the Waldvogel technique and the NEXRAD severe hail algorithm were the most accurate methods for hail detection over the area of interest. A combined criterion was proposed based on a combination of previously tested techniques. The precision of this “combi-criterion” was demonstrated for a severe hail event. The abilities of the tested criteria to provide information about a hail-fall area distribution and hail damage risk over the Czech territory were shown and discussed. 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 2015
Počet záznamů: 1