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Pregled bibliografske jedinice broj: 299716

Zbornik radova

Autori: Kavčič, Iva; Grisogono, Branko; Renfrew, Ian A.; Anderson, Philip S.; Večenaj, Željko; Stiperski, Ivana
Naslov: "Comparison of the Prandtl model with K(z) and non-zero f with Doppler sodar observations"
Izvornik: 29th International Conference on Alpine Meteorology - Extended AbstractsMétéo-France , 2007. 597-600.
Skup: 29th International Conference on Alpine Meteorology
Mjesto i datum: Chambery, Francuska, 04-08.06.2007.
Ključne riječi: Stable boundary layer; Prandtl model; Doppler sodar data
Sažetak:
We present the analytical and numerical solutions for (U, V) depending on (z, t) in the katabatic flow, where U and V are the downslope and cross-slope wind components. The solutions for (U, V) from the recently extended analytical 1D Prandtl model are verified against observations (the 15-min averages) from a novel autonomous Doppler sodar wind profiling system in Antarctica. Two cases of the wintertime, primarily katabatically driven, flows with the different stability values are investigated. The analytical and numerical model parameters are calculated from the Doppler sodar and AWS (automatic weather station) data. Observations of the downslope component are generally better described by the model solutions, especially in the case of the stronger stability. The model solutions for V agree qualitatively with the observations, but are not accurate enough in determining the height and the speed of the V maximum. Therefore, further improvements of the Prandtl model will be amendable as well as recommendations for a better parameterization of katabatic flows in large-scale numerical models.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 004-1193086-3036, 119-1193086-1311, 037-1193086-2771
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Matematika,Geologija
Puni text rada: 299716.ext_abstr_data.pdf (tekst priložen 2. Srp. 2007. u 22:30 sati)
URL Internet adrese: http://www.cnrm.meteo.fr/ICAM2007/html/PROCEEDINGS/ICAM2007/poster_abstracts.html
Upisao u CROSBI: Iva Kavčič (ikavcic@net.hr), 14. Lip. 2007. u 10:54 sati



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