MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT

Abstract: A satellite image of blowing dust is compared to a simulation of winds during a major erosion event in Iceland. There is large spatial variability in the wind speed and this variability is attributed to the topography. The atmosphere responds particularly stongly to the mountains because o...

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Main Author: Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is
Format: Text
Language:English
Published: Croatian meteorological society; info@meteohmd.hr 2005
Subjects:
sandstorm;erosion;Greenland;Iceland;inversion;corner wind;Nh/U
inverse Froude number
Greenland
Ice cap
Iceland
Online Access:http://hrcak.srce.hr/64703
http://hrcak.srce.hr/file/96975
id fthrcak:oai:hrcak.srce.hr:64703
record_format openpolar
spelling fthrcak:oai:hrcak.srce.hr:64703 2023-05-15T16:27:08+02:00 MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is 2005-12-15 pdf http://hrcak.srce.hr/64703 http://hrcak.srce.hr/file/96975 en eng Croatian meteorological society; info@meteohmd.hr http://hrcak.srce.hr/64703 http://hrcak.srce.hr/file/96975 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 sandstorm;erosion;Greenland;Iceland;inversion;corner wind;Nh/U inverse Froude number text 2005 fthrcak 2012-10-27T15:58:16Z Abstract: A satellite image of blowing dust is compared to a simulation of winds during a major erosion event in Iceland. There is large spatial variability in the wind speed and this variability is attributed to the topography. The atmosphere responds particularly stongly to the mountains because of a low-level inversion which is a result of synoptic-scale descent from the Greenland ice cap. The simulation is a part of the new MM5-based forecast system in Iceland (HRAS) and comparison with the patterns revealed by the dust image indicates that all main features of the flow are correcty reproduced by the forecast system. This case study indicates that local enhancment of the wind may be important for erosion. Text Greenland Ice cap Iceland Hrčak - Portal of scientific journals of Croatia Greenland
institution Open Polar
collection Hrčak - Portal of scientific journals of Croatia
op_collection_id fthrcak
language English
topic sandstorm;erosion;Greenland;Iceland;inversion;corner wind;Nh/U
inverse Froude number
spellingShingle sandstorm;erosion;Greenland;Iceland;inversion;corner wind;Nh/U
inverse Froude number
Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is
MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
topic_facet sandstorm;erosion;Greenland;Iceland;inversion;corner wind;Nh/U
inverse Froude number
description Abstract: A satellite image of blowing dust is compared to a simulation of winds during a major erosion event in Iceland. There is large spatial variability in the wind speed and this variability is attributed to the topography. The atmosphere responds particularly stongly to the mountains because of a low-level inversion which is a result of synoptic-scale descent from the Greenland ice cap. The simulation is a part of the new MM5-based forecast system in Iceland (HRAS) and comparison with the patterns revealed by the dust image indicates that all main features of the flow are correcty reproduced by the forecast system. This case study indicates that local enhancment of the wind may be important for erosion.
format Text
author Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is
author_facet Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is
author_sort Ólafsson, Haraldur; Háskóli Íslands (University of Iceland), Veðurstofa Íslands (Icelandic Meteorological Office) and Reiknistofa í veðurfræði (Institute for Meteorological Research); haraldur@vedur.is
title MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
title_short MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
title_full MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
title_fullStr MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
title_full_unstemmed MULTI-SCALE OROGRAPHIC FORCING OF THE ATMOSPHERE LEADING TO AN EROSION EVENT
title_sort multi-scale orographic forcing of the atmosphere leading to an erosion event
publisher Croatian meteorological society; info@meteohmd.hr
publishDate 2005
url http://hrcak.srce.hr/64703
http://hrcak.srce.hr/file/96975
geographic Greenland
geographic_facet Greenland
genre Greenland
Ice cap
Iceland
genre_facet Greenland
Ice cap
Iceland
op_source Croatian meteorological journal (nikolic@cirus.dhz.hr); Vol.40 No.40
op_relation http://hrcak.srce.hr/64703
http://hrcak.srce.hr/file/96975
op_rights The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher.
_version_ 1766016226610380800

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