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Pregled bibliografske jedinice broj: 311467

Zbornik radova

Autori: Grisogono, Branko; Kavčič, Iva
Naslov: Some recent findings about very stable boundary layers
Izvornik: AMGI/EURASAP Workshop on the Air Quality Management, Monitoring, Modeling, and Effects : Book of Abstracts / Builtjes, Peter ; Bencetić Klaić, Zvjezdana (ur.). -
Skup: AMGI/EURASAP Workshop on the Air Quality Management, Monitoring, Modeling, and Effects
Mjesto i datum: Zagreb, Hrvatska, 24.-26.05.2007.
Ključne riječi: Strongly stable ABL; Katabatic flow; Prandtl model; WKB method
Sažetak:
The focus of this short talk is on two recent results related to strongly stable ABL. First and more elaborated part here is katabatic flow over long cool slopes. Since it was verified that classical scaling via Monin-Obukhov length performs over such slopes rather poorly, a modified Prandtl model is used instead. This linear analytic 1D model is extended for 1.) almost any gradual eddy diffusivity K(z) via the WKB method, and 2.) it includes the Coriolis effect. The result agrees well with the MIUU numerical mesoscale model ; moreover, it can be useful in parameterizing shallow persistent katabatic flows in NWP and climate models and in data interpretation. Second part relates only to numerical modeling with the concept of total turbulent energy parameterization. This promising approach appears suitable for modeling stable ABL, when compared to data and various LES, because it allows for turbulence at high Richardson number.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Nema recenziju
Projekt / tema: 119-1193086-1311, 037-1193086-2771
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Geologija
URL Internet adrese: http://www.gfz.hr/eng/workshop.php
Upisao u CROSBI: Željko Večenaj (zvecenaj@gfz.hr), 21. Stu. 2007. u 10:47 sati



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