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Pregled bibliografske jedinice broj: 584574

Zbornik radova

Autori: Poljak, Gabrijela; Babić, Karmen; Kvakić, Marko; Telišman Prtenjak, Maja
Naslov: Impact of the large-scale wind and mesoscale shallow flows on the development of cumulonimbus clouds over Istria
( Impact of the large-scale wind and mesoscale shallow flows on the development of cumulonimbus clouds over Istria )
Izvornik:
Skup: Croatian-USA Workshop on Mesometeorology
Mjesto i datum: Ekopark Kraš Resort near Zagreb, Croatia, 18-20 June 2012
Ključne riječi: large-scale wind; sea breeze; cumulonimbus
( large-scale wind; sea breeze; cumulonimbus )
Sažetak:
An analysis of deep convective activity has been showed that the northeastern Adriatic represents the most convective area in Croatia. In particular, the Istrian peninsula. Every other day there was marked as a day with convection in the warm part of the year. Furthermore, in 82% of days with convective activity was observed during three dominant wind regimes on a large scale. They were from the SW (46%), NE (18%) and NW (18%) directions. Mesoscale local thermal-induced wind is also common in Istria, appearing every other day during the summer. Therefore here, with three selected cases (for every type of the dominant large-scale wind regime) we investigate the impact of jointed large scale wind and thermally-induced local wind on the development of cumulonimbus clouds. For this purpose we use the available measurements, satellite images and WRF numerical simulations at fine resolution. Among other, results indicate that the SW large-scale wind superimposed on the western sea breeze increases humidity advection at the foot of the mountains in the northeast of the Istrian peninsula. The large- scale NE wind is opposite to the dominant western sea breeze and prevents its deeper penetration over the peninsula. Nevertheless, the interaction reinforces the convergence of the flow field in the boundary layer and consequently the intensity of sea breeze fronts and its updrafts. The effects of NE and SW synoptic winds are somewhat similar. In all cases, the result is favorable conditions for the Cb development in the form of multi-cells.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Nema recenziju
Projekt / tema: 119-1193086-1311
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Geologija
Puni text rada: 584574.Extended_abstract_Poljak_etal.pdf (tekst priložen 21. Lip. 2012. u 12:56 sati)
URL Internet adrese: http://www.pmf.unizg.hr/_download/repository/2_Collection_Participant_Abstracts.pdf
http://meteo.hr/WS_2012/documents/2_Collection_Participant_Abstracts.pdf
Upisao u CROSBI: telisman@irb.hr (telisman@irb.hr), 21. Lip. 2012. u 12:56 sati



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