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Pregled bibliografske jedinice broj: 470555

Zbornik radova

Autori: Telišman Prtenjak, Maja; Babić, Karmen; Mikuš Petra
Naslov: An interaction between sea breezes and cumulonimbus clouds over Istria during summer months
( An interaction between sea breezes and cumulonimbus clouds over Istria during summer months )
Izvornik: European Geosciences Union General Assembly 2010Beč :
Skup: European Geosciences Union General Assembly 2010
Mjesto i datum: Beč, Austrija, 03-07.05.2010.
Ključne riječi: sea/land breeze; cumulonimbus cloud; convection; convergence zone
( sea/land breeze; cumulonimbus cloud; convection; convergence zone )
Sažetak:
In this study, we first tried to determine a climatological relationship between a sea breeze on the coast and a cumulonimbus (Cb) cloud over the Istrian peninsula. Their relationship was analyzed by the available standard measurements at two stations: Pula-airport and Pazin during summer months (from June to September) for the period 1997-2006. For this purpose, the surface wind measurements, the air and sea surface temperatures, as well as cloudiness and their interrelationships were analyzed. The analysis showed that the cumulonimbus developed more often in certain meteorological conditions. Those were: (1) sea breeze speed at Pula-airport in the range of 3 - 5 m s-1, (2) maximum temperature difference between the sea and land at Pula-airport around 4 °C, and (3) maximum air temperature in Pazin in the range of 25 to 31 °C. In average, the nighttime and early morning land breeze was weaker and the air temperature was higher on days with the cumulonimbus when compared to the same features on days without the cumulonimbus at Pula-airport. In the second part of this study, the satellite images from the period 2000-2006 obtained by the geostationary satellites Meteosat 7 and 8 were used. The main goal was to detect the spatial distribution and temporal development of the chosen cumulonimbus events (30 of them). Two characteristic places of the cumulonimbus development were noted: the northern and the southeastern part of the Istrian peninsula. The cumulonimbus would usually form between noon and 2 p.m., lasting in general 3 to 5 hours and disintegrating between 4 and 5 p.m. local time. Finally, the particular Cb development occurring 23 July 2006 was satisfactorily simulated by mesoscale WRF-ARW model.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Nema recenziju
Projekt / tema: 119-1193086-1311
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Geologija
Puni text rada: 470555.EGU_poster2010.ppt (tekst priložen 10. Svi. 2010. u 15:22 sati)
URL Internet adrese: http://meetingorganizer.copernicus.org/EGU2010/sessionprogramme
Upisao u CROSBI: telisman@irb.hr (telisman@irb.hr), 10. Svi. 2010. u 15:22 sati



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