Pregled bibliografske jedinice broj: 318918
Modelling wind and temperature profiles in katabatic flow
Modelling wind and temperature profiles in katabatic flow // International Mini-Conference "Heat, mass and momentum transfer in katabatic winds over glaciers and ice sheets : towards a better formulation of the lower boundary condition in climate models"
Utrecht, Nizozemska, 2008. (pozvano predavanje, nije recenziran, neobjavljeni rad, znanstveni)
CROSBI ID: 318918 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Modelling wind and temperature profiles in katabatic flow
Autori
Grisogono, Branko ; Belušić, Danijel ; Kavčič, Iva
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni
Skup
International Mini-Conference "Heat, mass and momentum transfer in katabatic winds over glaciers and ice sheets : towards a better formulation of the lower boundary condition in climate models"
Mjesto i datum
Utrecht, Nizozemska, 14.01.2008. - 17.01.2008
Vrsta sudjelovanja
Pozvano predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
MIUU model; Prandtl model; stratified turbulence; low-level jet; near-surface inversion.
Sažetak
Analytical and numerical modeling of simple katabatic flows blowing over long cool slopes is assessed. Since it was verified that classical scaling via Monin-Obukhov length performs over such slopes rather poorly (a low-level jet usually determines the surface fluxes), our improved Prandtl model is used instead. We specifically address a single problem: the mixing length-scale within the SABL, i.e. in the "z-less" or local regime, as often parameterized in mesoscale models with a higher-order closure turbulence scheme, and a way to improve this length-scale by including shear effects explicitly. The numerical meteorological model deployed is MIUU model ; it is improved via its mixing length-scale (in its turbulence parameterization scheme) by its tune up toward the improved Prandtl solutions. In this way, lower and more faithful low-level jets and near-surface inversion may be modeled.
Izvorni jezik
Engleski
Znanstvena područja
Geologija
Napomena
Projekt NATO-DMI, BORA (119-1193086-1311) ; Autor je pozvan, kao međunarodni ekspert za stabilne atmosferske granične slojeve i posebice katabatičko strujanje, da održi predavanje i moderira predstojeći bilateralni znanstveni projekt između Nizozemske (IMAU) i Rusije. Projekt se odnosi na strujanje na Spitzbergu i ostalim polarnim otocima s planinama. To je rezultiralo kasnije npr. radom: http://bib.irb.hr/prikazi-rad?&rad=374344
POVEZANOST RADA
Projekti:
037-1193086-2771 - Numeričke metode u geofizičkim modelima (Singer, Saša, MZOS ) ( CroRIS)
119-1193086-1311 - Bazične ORografske Atmosferske cirkulacije u Hrvatskoj (BORA) (Grisogono, Branko, MZOS ) ( CroRIS)
119-1193086-1323 - Kakvoća zraka nad kompleksnom topografijom (Bencetić-Klaić, Zvjezdana, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
