J 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 and Jiří HOŠEK

Basic information

Original name

High-resolution numerical simulation of summer wind field comparing WRF boundary-layer parametrizations over complex Arctic topography: case study from central Spitsbergen

Authors

LÁSKA, Kamil (203 Czech Republic, guarantor, belonging to the institution), Zuzana CHLÁDOVÁ (203 Czech Republic) and Jiří HOŠEK (203 Czech Republic)

Edition

Meteorologische Zeitschrift, STUTTGART, GERMANY, E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG, 2017, 0941-2948

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10509 Meteorology and atmospheric sciences

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.436

RIV identification code

RIV/00216224:14310/17:00098204

Organization unit

Faculty of Science

DOI

UT WoS

000416405200004

Keywords in English

surface wind field; model evaluation; topographic effect; circulation pattern; Svalbard

Tags

Změněno: 4/4/2018 14:08, Ing. Nicole Zrilić

Abstract

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.

Links

LM2015078, research and development project
Name: Česká polární výzkumná infrastruktura (Acronym: CzechPolar2)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1370/2014, interní kód MU
Name: Globální environmentální změny v krajinné sféře Země v čase a prostoru (Acronym: GlobST)
Investor: Masaryk University, Category A