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Short-term temporal variability of surface wind speed over central Spitsbergen, Svalbard

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00098207" target="_blank" >RIV/00216224:14310/17:00098207 - isvavai.cz</a>

  • Výsledek na webu

    <a href="http://www.assw2017.eu/abstract-book.htm" target="_blank" >http://www.assw2017.eu/abstract-book.htm</a>

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Short-term temporal variability of surface wind speed over central Spitsbergen, Svalbard

  • Popis výsledku v původním jazyce

    The aim of the study is to use yearlong measurement in central Spitsbergen to 1) analyse the temporal variation in the near-surface wind field and 2) evaluate the relationship between large-scale weather systems and the wind speed among different locations within the fjord. We focused primarily on the analysis of the near-surface wind characteristics measured in Petuniabukta and Mimerbukta close to Russian settlement Pyramiden (Fig. 1) during 2013. Two automatic weather stations were located on the raised marine terrace at altitudes from 15 and 20 m a. s. l. Pattern of atmospheric circulation was identified using 850 hPa geopotential heights and geostrophic winds. Moreover, Weather Research and Forecasting (WRF) mesoscale model outputs (Skamarock et al. (2008) with the Quasi-Normal Scale Elimination parameterization scheme with 1-km horizontal resolution of the inner domain were used for identification of local circulation systems. We found that the large-scale flows were often modified by channelling and drainage effects accompanied by an increase on local wind speed in the coastal zone. Moreover, the occurrence of low level jets were identified and successfully simulated by the WRF model.

  • Název v anglickém jazyce

    Short-term temporal variability of surface wind speed over central Spitsbergen, Svalbard

  • Popis výsledku anglicky

    The aim of the study is to use yearlong measurement in central Spitsbergen to 1) analyse the temporal variation in the near-surface wind field and 2) evaluate the relationship between large-scale weather systems and the wind speed among different locations within the fjord. We focused primarily on the analysis of the near-surface wind characteristics measured in Petuniabukta and Mimerbukta close to Russian settlement Pyramiden (Fig. 1) during 2013. Two automatic weather stations were located on the raised marine terrace at altitudes from 15 and 20 m a. s. l. Pattern of atmospheric circulation was identified using 850 hPa geopotential heights and geostrophic winds. Moreover, Weather Research and Forecasting (WRF) mesoscale model outputs (Skamarock et al. (2008) with the Quasi-Normal Scale Elimination parameterization scheme with 1-km horizontal resolution of the inner domain were used for identification of local circulation systems. We found that the large-scale flows were often modified by channelling and drainage effects accompanied by an increase on local wind speed in the coastal zone. Moreover, the occurrence of low level jets were identified and successfully simulated by the WRF model.

Klasifikace

  • Druh

    O - Ostatní výsledky

  • CEP obor

  • OECD FORD obor

    10500 - Earth and related environmental sciences

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/LM2015078" target="_blank" >LM2015078: Česká polární výzkumná infrastruktura</a><br>

  • Návaznosti

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Ostatní

  • Rok uplatnění

    2017

  • Kód důvěrnosti údajů

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů