Sensitivity of simulated winds upstream of mountains to horizontal resolution
Abstract: A severe windstorm in the complex terrain of NW-Iceland on 1-2 February 2002 has been simulated. The windstorm is characterized by large horizontal variability in wind speed and vertically propagating gravity waves that break below 500 hPa. Mesoscale phenomena such as downslope windstorms...
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fthrcak:oai:hrcak.srce.hr:64704 2023-05-15T16:48:58+02:00 Sensitivity of simulated winds upstream of mountains to horizontal resolution Ágústsson, Hálfdán; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland; halfdana@hi.is Ólafsson, Haraldur; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland 2005-12-15 pdf http://hrcak.srce.hr/64704 http://hrcak.srce.hr/file/96976 en eng Croatian meteorological society; info@meteohmd.hr http://hrcak.srce.hr/64704 http://hrcak.srce.hr/file/96976 The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher. Croatian meteorological journal (nikolic@cirus.dhz.hr); Vol.40 No.40 Complex terrain;local windstorms;terrain sensitivity upstream of mountains text 2005 fthrcak 2012-10-27T15:58:16Z Abstract: A severe windstorm in the complex terrain of NW-Iceland on 1-2 February 2002 has been simulated. The windstorm is characterized by large horizontal variability in wind speed and vertically propagating gravity waves that break below 500 hPa. Mesoscale phenomena such as downslope windstorms are generally well simulated but winds immediately upstream of steep mountains are however relatively poorly reproduced. Here, the windstorm is simulated with horizontal resolution up to 330 m and the simulated wind speed upstream of a mountain is compared to observations. The greater the resolution is, the steeper is the topography and the simulated winds are closer to observed winds. At a horizontal resolution of 330 m, the simulated winds are however still stronger than the observed winds. Text Iceland Hrčak - Portal of scientific journals of Croatia |
institution |
Open Polar |
collection |
Hrčak - Portal of scientific journals of Croatia |
op_collection_id |
fthrcak |
language |
English |
topic |
Complex terrain;local windstorms;terrain sensitivity upstream of mountains |
spellingShingle |
Complex terrain;local windstorms;terrain sensitivity upstream of mountains Ágústsson, Hálfdán; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland; halfdana@hi.is Ólafsson, Haraldur; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland Sensitivity of simulated winds upstream of mountains to horizontal resolution |
topic_facet |
Complex terrain;local windstorms;terrain sensitivity upstream of mountains |
description |
Abstract: A severe windstorm in the complex terrain of NW-Iceland on 1-2 February 2002 has been simulated. The windstorm is characterized by large horizontal variability in wind speed and vertically propagating gravity waves that break below 500 hPa. Mesoscale phenomena such as downslope windstorms are generally well simulated but winds immediately upstream of steep mountains are however relatively poorly reproduced. Here, the windstorm is simulated with horizontal resolution up to 330 m and the simulated wind speed upstream of a mountain is compared to observations. The greater the resolution is, the steeper is the topography and the simulated winds are closer to observed winds. At a horizontal resolution of 330 m, the simulated winds are however still stronger than the observed winds. |
format |
Text |
author |
Ágústsson, Hálfdán; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland; halfdana@hi.is Ólafsson, Haraldur; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland |
author_facet |
Ágústsson, Hálfdán; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland; halfdana@hi.is Ólafsson, Haraldur; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland |
author_sort |
Ágústsson, Hálfdán; Háskóli Íslands, Bústaðavegi 9, 150 Reykjavík, Iceland; halfdana@hi.is |
title |
Sensitivity of simulated winds upstream of mountains to horizontal resolution |
title_short |
Sensitivity of simulated winds upstream of mountains to horizontal resolution |
title_full |
Sensitivity of simulated winds upstream of mountains to horizontal resolution |
title_fullStr |
Sensitivity of simulated winds upstream of mountains to horizontal resolution |
title_full_unstemmed |
Sensitivity of simulated winds upstream of mountains to horizontal resolution |
title_sort |
sensitivity of simulated winds upstream of mountains to horizontal resolution |
publisher |
Croatian meteorological society; info@meteohmd.hr |
publishDate |
2005 |
url |
http://hrcak.srce.hr/64704 http://hrcak.srce.hr/file/96976 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Croatian meteorological journal (nikolic@cirus.dhz.hr); Vol.40 No.40 |
op_relation |
http://hrcak.srce.hr/64704 http://hrcak.srce.hr/file/96976 |
op_rights |
The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher. |
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1766039050263724032 |