2017
High-resolution numerical simulation of summer wind field comparing WRF boundary-layer parametrizations over complex Arctic topography: case study from central Spitsbergen
LÁSKA, Kamil, Zuzana CHLÁDOVÁ a Jiří HOŠEKZákladní údaje
Originální název
High-resolution numerical simulation of summer wind field comparing WRF boundary-layer parametrizations over complex Arctic topography: case study from central Spitsbergen
Autoři
LÁSKA, Kamil (203 Česká republika, garant, domácí), Zuzana CHLÁDOVÁ (203 Česká republika) a Jiří HOŠEK (203 Česká republika)
Vydání
Meteorologische Zeitschrift, STUTTGART, GERMANY, E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG, 2017, 0941-2948
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10509 Meteorology and atmospheric sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.436
Kód RIV
RIV/00216224:14310/17:00098204
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000416405200004
Klíčová slova anglicky
surface wind field; model evaluation; topographic effect; circulation pattern; Svalbard
Změněno: 4. 4. 2018 14:08, Ing. Nicole Zrilić
Anotace
V originále
The Weather Research and Forecasting (WRF) mesoscale model was run in three different configurations over Svalbard Archipelago and compared with the 12-day summer measurements of surface wind characteristics at three sites along the western coast of Petuniabukta, central Spitsbergen. For studying wind patterns over complex topography, we chose the following sites for their differing terrain elevation and local surface characteristics: a raised marine terrace (15 m a.s.l.), the foreland of Horbyebreen Glacier (67 m a.s.l.) and the top of Mumien Peak (773 m a.s.l.). The WRF simulations were conducted using three boundary layer (BL) parameterization schemes: the Yonsei University (YSU), the Mellor-Yamada-Janjic (MYJ) and the Quasi-Normal Scale Elimination (QNSE), with 1-km horizontal resolution of the inner domain. The WRF simulations agreed fairly well with the surface wind observations taken at all the sites. For wind speed, the mean correlation coefficients between the modelled and observed data ranged from 0.56 to 0.67. The best results across all the stations were found for the QNSE parameterization scheme, with a bias of 0.1m s-1. The wind speed simulations were sensitive to the geographical location and elevation of the stations. All the parameterization schemes had difficulties in capturing the surface wind field in the narrow valley near the Horbye foreland station, while satisfactory estimates were found at the top of Mumien Peak and Terrace station, located in a wide part of the fjord.
Návaznosti
LM2015078, projekt VaV |
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MUNI/A/1370/2014, interní kód MU |
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