0505599 - ÚFA 2020 RIV CH eng J - Journal Article
Skripniková, Kateřina - Řezáčová, Daniela
Comparison of Radar-Based Hail Detection Using Single- and Dual-Polarization.
Remote Sensing. Roč. 11, č. 12 (2019), č. článku 1436. E-ISSN 2072-4292
Grant - others:AV ČR(CZ) L100421701
Program: Program podpory perspektivních lidských zdrojů AV ČR – Mzdová podpora postdoktorandů na pracovištích AV ČR
Institutional support: RVO:68378289
Keywords : hail detection * hailstone size * weather radar * single-polarization radar * dual-polarization radar
OECD category: Meteorology and atmospheric sciences
Impact factor: 4.509, year: 2019
Method of publishing: Open access
https://www.mdpi.com/2072-4292/11/12/1436

The comparative analysis of radar-based hail detection methods presented here, uses C-band polarimetric radar data from Czech territory for 5 stormy days in May and June 2016. The 27 hail events were selected from hail reports of the European Severe Weather Database (ESWD) along with 21 heavy rain events. The hail detection results compared in this study were obtained using a criterion, which is based on single-polarization radar data and a technique, which uses dual-polarization radar data. Both techniques successfully detected large hail events in a similar way and showed a strong agreement. The hail detection, as applied to heavy rain events, indicated a weak enhancement of the number of false detected hail pixels via the dual-polarization hydrometeor classification. We also examined the performance of hail size detection from radar data using both single- and dual-polarization methods. Both the methods recognized events with large hail but could not select the reported events with maximum hail size (diameter above 4 cm).
Permanent Link: http://hdl.handle.net/11104/0297067