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izvor podataka: crosbi

Wind patterns associated with the development of daytime thunderstorms over Istria (CROSBI ID 204222)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Poljak, Gabrijela ; Telišman Prtenjak, Maja ; Kvakić, Marko ; Strelec Mahović, Nataša ; Babić, Karmen Wind patterns associated with the development of daytime thunderstorms over Istria // Annales geophysicae, 32 (2014), 401-420. doi: 10.5194/angeo-32-401-2014

Podaci o odgovornosti

Poljak, Gabrijela ; Telišman Prtenjak, Maja ; Kvakić, Marko ; Strelec Mahović, Nataša ; Babić, Karmen

engleski

Wind patterns associated with the development of daytime thunderstorms over Istria

The northeastern (NE) Adriatic in the northern Mediterranean is the area with (i) the highest frequency of thunderstorms in Croatia, and (ii) frequent appearances of sea breeze (SB) along the coast. This study investigates the impact of the combined large-scale wind (associated with particular synoptic conditions) and the SB on the moist convection development over the NE Adriatic. The four selected cases were: (i) chosen on the basis of a daytime moist convection ; (ii) supplemented by one of the dominant large-scale winds with seaward (NE, NW) and landward (SW, SE) directions and (iii) simulated by WRF numerical model. The near-surface wind patterns consisted of SBs along the coastline, generated a narrow eastward-moving convergence zone (CZ) along the area if the large-scale wind was less than 9 m s-1 (below 500 hPa). Apart from the low-level CZ, the advection of large-scale wind influenced the lifetime and movement of the initial Cb cells. While the local front collision with the NE wind advection caused the thunderstorm to propagate southward, the CZ and fronts interaction determined the afternoon northwestward storm movement against the NW large-scale wind. Due to particular synoptic background, the thunderstorm event in SE case was the shortest with only a minor impact on the SB. While the origins and locations of storm cells were completely controlled by the low-level CZ and the upward advection of low-level moisture at the SB front, the most typical convective case with SW warm-wet wind only partially supported the SB-Cb interaction.

sea/land breeze; sea breeze front; deep convection; gust front; northeastern Adriatic

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Podaci o izdanju

32

2014.

401-420

objavljeno

0992-7689

10.5194/angeo-32-401-2014

Povezanost rada

Geologija

Poveznice
Indeksiranost