An operational large-scale marine planetary boundary layer model
A marine planetary boundary layer (PBL) model is presented and compared with data from sea-based experiments. The PBL model comprises two layers, the outer an Ekman-Taylor layer with stratification-dependent secondary flow, and the logarithmic surface layer corrected for stratification and humidity...
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1982
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ftnasantrs:oai:casi.ntrs.nasa.gov:19820049222 2023-05-15T16:49:27+02:00 An operational large-scale marine planetary boundary layer model Brown, R. A. Liu, W. T. Unclassified, Unlimited, Publicly available Mar 1, 1982 http://ntrs.nasa.gov/search.jsp?R=19820049222 unknown http://ntrs.nasa.gov/search.jsp?R=19820049222 Accession ID: 82A32757 Copyright Other Sources 47 Journal of Applied Meteorology; 21; Mar. 198 1982 ftnasantrs 2012-02-15T15:05:57Z A marine planetary boundary layer (PBL) model is presented and compared with data from sea-based experiments. The PBL model comprises two layers, the outer an Ekman-Taylor layer with stratification-dependent secondary flow, and the logarithmic surface layer corrected for stratification and humidity effects and variable surface roughness. Corrections are noted for air much warmer than water in stable conditions and for low wind speeds. The layers are analytically defined along with similarity relations and a resistance law for inclusion in a program. An additional interfacial layer correction is developed and shown to be significant for heat flux calculations. Experimental data from GOASEX were used to predict the windfield in the Gulf of Alaska, and JASIN data was used for windfields SE of Iceland. The JASIN-derived wind field predictions were accurate to within 1 m/sec and 10 deg in a 200 km triangle. Other/Unknown Material Iceland Alaska NASA Technical Reports Server (NTRS) Gulf of Alaska |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
topic |
47 |
spellingShingle |
47 Brown, R. A. Liu, W. T. An operational large-scale marine planetary boundary layer model |
topic_facet |
47 |
description |
A marine planetary boundary layer (PBL) model is presented and compared with data from sea-based experiments. The PBL model comprises two layers, the outer an Ekman-Taylor layer with stratification-dependent secondary flow, and the logarithmic surface layer corrected for stratification and humidity effects and variable surface roughness. Corrections are noted for air much warmer than water in stable conditions and for low wind speeds. The layers are analytically defined along with similarity relations and a resistance law for inclusion in a program. An additional interfacial layer correction is developed and shown to be significant for heat flux calculations. Experimental data from GOASEX were used to predict the windfield in the Gulf of Alaska, and JASIN data was used for windfields SE of Iceland. The JASIN-derived wind field predictions were accurate to within 1 m/sec and 10 deg in a 200 km triangle. |
format |
Other/Unknown Material |
author |
Brown, R. A. Liu, W. T. |
author_facet |
Brown, R. A. Liu, W. T. |
author_sort |
Brown, R. A. |
title |
An operational large-scale marine planetary boundary layer model |
title_short |
An operational large-scale marine planetary boundary layer model |
title_full |
An operational large-scale marine planetary boundary layer model |
title_fullStr |
An operational large-scale marine planetary boundary layer model |
title_full_unstemmed |
An operational large-scale marine planetary boundary layer model |
title_sort |
operational large-scale marine planetary boundary layer model |
publishDate |
1982 |
url |
http://ntrs.nasa.gov/search.jsp?R=19820049222 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Iceland Alaska |
genre_facet |
Iceland Alaska |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19820049222 Accession ID: 82A32757 |
op_rights |
Copyright |
_version_ |
1766039582540824576 |