Marine boundary-layer height estimated from the HIRLAM model
Two-weeks of measurements of the boundary-layer height over a small island (Christianso) in the Baltic Sea is discussed. The meteorological conditions were characterised by positive heat flux over the sea. The boundary-layer heights derived from radiosonde measurements were compared to Richardson-nu...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2002
|
Subjects: | |
Online Access: | https://orbit.dtu.dk/en/publications/47af8357-b5c7-4af5-ae93-a78e9fc49058 |
id |
ftdtupubl:oai:pure.atira.dk:publications/47af8357-b5c7-4af5-ae93-a78e9fc49058 |
---|---|
record_format |
openpolar |
spelling |
ftdtupubl:oai:pure.atira.dk:publications/47af8357-b5c7-4af5-ae93-a78e9fc49058 2023-05-15T15:45:41+02:00 Marine boundary-layer height estimated from the HIRLAM model Gryning, Sven-Erik Batchvarova, E. 2002 https://orbit.dtu.dk/en/publications/47af8357-b5c7-4af5-ae93-a78e9fc49058 eng eng info:eu-repo/semantics/closedAccess Gryning , S-E & Batchvarova , E 2002 , ' Marine boundary-layer height estimated from the HIRLAM model ' , Boreal Environment Research , vol. 7 , no. 3 , pp. 229-233 . 1-E vind /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water article 2002 ftdtupubl 2023-01-04T23:57:09Z Two-weeks of measurements of the boundary-layer height over a small island (Christianso) in the Baltic Sea is discussed. The meteorological conditions were characterised by positive heat flux over the sea. The boundary-layer heights derived from radiosonde measurements were compared to Richardson-number estimates based on output from the operational numerical weather prediction model HIRLAM (a version of SMHI with a grid resolution of 22.5 km x 22.5 km). For southwesterly winds it was found that a relatively large island (Bornholm) lying 20 km upwind of the measuring site influences the boundary-layer height. In this situation Richardson-number based methods with the HIRLAM data fail most likely because the island of Bornholm and the water fetch to the measuring site are about the size of the grid resolution of the HIRLAM model and therefore poorly resolved. For northerly winds the water fetch to the measuring site is about 100 km and the Richardson methods reproduce the height of the marine boundary layer. This suggests that the HIRLAM model adequately resolves a water fetch of 100 km with respect to predictions of the height of the marine boundary layer. Article in Journal/Newspaper Boreal Environment Research Technical University of Denmark: DTU Orbit |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
topic |
1-E vind /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
spellingShingle |
1-E vind /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water Gryning, Sven-Erik Batchvarova, E. Marine boundary-layer height estimated from the HIRLAM model |
topic_facet |
1-E vind /dk/atira/pure/sustainabledevelopmentgoals/life_below_water SDG 14 - Life Below Water |
description |
Two-weeks of measurements of the boundary-layer height over a small island (Christianso) in the Baltic Sea is discussed. The meteorological conditions were characterised by positive heat flux over the sea. The boundary-layer heights derived from radiosonde measurements were compared to Richardson-number estimates based on output from the operational numerical weather prediction model HIRLAM (a version of SMHI with a grid resolution of 22.5 km x 22.5 km). For southwesterly winds it was found that a relatively large island (Bornholm) lying 20 km upwind of the measuring site influences the boundary-layer height. In this situation Richardson-number based methods with the HIRLAM data fail most likely because the island of Bornholm and the water fetch to the measuring site are about the size of the grid resolution of the HIRLAM model and therefore poorly resolved. For northerly winds the water fetch to the measuring site is about 100 km and the Richardson methods reproduce the height of the marine boundary layer. This suggests that the HIRLAM model adequately resolves a water fetch of 100 km with respect to predictions of the height of the marine boundary layer. |
format |
Article in Journal/Newspaper |
author |
Gryning, Sven-Erik Batchvarova, E. |
author_facet |
Gryning, Sven-Erik Batchvarova, E. |
author_sort |
Gryning, Sven-Erik |
title |
Marine boundary-layer height estimated from the HIRLAM model |
title_short |
Marine boundary-layer height estimated from the HIRLAM model |
title_full |
Marine boundary-layer height estimated from the HIRLAM model |
title_fullStr |
Marine boundary-layer height estimated from the HIRLAM model |
title_full_unstemmed |
Marine boundary-layer height estimated from the HIRLAM model |
title_sort |
marine boundary-layer height estimated from the hirlam model |
publishDate |
2002 |
url |
https://orbit.dtu.dk/en/publications/47af8357-b5c7-4af5-ae93-a78e9fc49058 |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_source |
Gryning , S-E & Batchvarova , E 2002 , ' Marine boundary-layer height estimated from the HIRLAM model ' , Boreal Environment Research , vol. 7 , no. 3 , pp. 229-233 . |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1766380194635972608 |