Number of the records: 1
Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe
- 1.
SYSNO ASEP 0496793 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Limits of precipitation nowcasting by extrapolation of radar reflectivity for warm season in Central Europe Author(s) Mejsnar, Jan (UFA-U) RID
Sokol, Zbyněk (UFA-U) RID, ORCID
Minářová, Jana (UFA-U) RID, ORCIDNumber of authors 3 Source Title Atmospheric Research. - : Elsevier - ISSN 0169-8095
Roč. 213, NOV 15 2018 (2018), s. 288-301Number of pages 14 s. Language eng - English Country NL - Netherlands Keywords part I ; Lagrangian extrapolation ; severe convection ; scale-dependence ; predictability ; forecasts ; ensemble ; tracking ; images ; verification Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Meteorology and atmospheric sciences Institutional support UFA-U - RVO:68378289 UT WOS 000442169800024 EID SCOPUS 85048992160 DOI 10.1016/j.atmosres.2018.06.005 Annotation Current precipitation nowcasting systems primarily use the extrapolation of observed radar reflectivity. The study focuses on both the extrapolation and the limits of predictability of precipitation using the concept of decorrelation time (DCT). The DCT analysis is based on reflectivity measurements from two radars covering the Czech Republic during the warm season (May-September) of four years (2009-2012). The analysis shows that that the mean DCT for the extrapolation forecast is 45.4 min, whereas the DCT for the persistent forecast is 13.4 min shorter. However, the DCT may increase or decrease by > 40% depending on current meteorological conditions. The investigation of the evolution of DCT in time during two storm events in the Czech Republic suggests that the DCT may significantly vary in time as a consequence of changing character of the precipitation systems. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2019
Number of the records: 1