The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations
International audience This paper focuses on the structure of the marine boundary layer in an convergence region between easterly (trade winds) and westerly flows, over the Subtropical South Atlantic Ocean on 15 September 1994 using an unprecedented combination of spaceborne and airborne lidar obser...
Published in: | Journal of Geophysical Research |
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Language: | English |
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Online Access: | https://hal.science/hal-04110036 https://hal.science/hal-04110036/document https://hal.science/hal-04110036/file/Journal%20of%20Geophysical%20Research%20Atmospheres%20-%202003%20-%20Cosma%E2%80%90Averseng%20-%20The%20cloudy%20atmospheric%20boundary%20layer%20over%20the.pdf https://doi.org/10.1029/2002JD002368 |
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ftinsu:oai:HAL:hal-04110036v1 2024-02-11T10:08:36+01:00 The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations Cosma-Averseng, Stéphanie Flamant, Cyrille Pelon, Jacques Palm, Stephen P. Schwemmer, Geary K. Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Science Systems and Applications, Inc. Lanham (SSAI) NASA Goddard Space Flight Center (GSFC) 2003 https://hal.science/hal-04110036 https://hal.science/hal-04110036/document https://hal.science/hal-04110036/file/Journal%20of%20Geophysical%20Research%20Atmospheres%20-%202003%20-%20Cosma%E2%80%90Averseng%20-%20The%20cloudy%20atmospheric%20boundary%20layer%20over%20the.pdf https://doi.org/10.1029/2002JD002368 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2002JD002368 hal-04110036 https://hal.science/hal-04110036 https://hal.science/hal-04110036/document https://hal.science/hal-04110036/file/Journal%20of%20Geophysical%20Research%20Atmospheres%20-%202003%20-%20Cosma%E2%80%90Averseng%20-%20The%20cloudy%20atmospheric%20boundary%20layer%20over%20the.pdf BIBCODE: 2003JGRD.108.4220C doi:10.1029/2002JD002368 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-04110036 Journal of Geophysical Research: Atmospheres, 2003, 108 (D7), ⟨10.1029/2002JD002368⟩ Boundary layer processes Numerical modeling and data assimilation Atmospheric Dynamics atmospheric boundary layer subtropical South Atlantic Ocean lidar meso-NH numerical simulations Lidar In-Space Technology Experiment [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2003 ftinsu https://doi.org/10.1029/2002JD002368 2024-01-17T17:24:26Z International audience This paper focuses on the structure of the marine boundary layer in an convergence region between easterly (trade winds) and westerly flows, over the Subtropical South Atlantic Ocean on 15 September 1994 using an unprecedented combination of spaceborne and airborne lidar observations, airborne Radar Ocean Wave Spectrometer and dropsondes system, and three-dimensional modeling. Methodologies previously developed to determine the marine atmospheric boundary layer (MABL) depth and cloud top heights from airborne lidar measurements are successfully applied to spaceborne measurements. Nested numerical simulations have been performed in this case study. It is shown that the MABL structure in this region (observed with lidar and simulated) collapsed dramatically in connection with a marked decrease of wind speed and near-zero turbulent kinetic energy due to specific synoptic conditions. Article in Journal/Newspaper South Atlantic Ocean Institut national des sciences de l'Univers: HAL-INSU Journal of Geophysical Research 108 D7 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Boundary layer processes Numerical modeling and data assimilation Atmospheric Dynamics atmospheric boundary layer subtropical South Atlantic Ocean lidar meso-NH numerical simulations Lidar In-Space Technology Experiment [SDU]Sciences of the Universe [physics] |
spellingShingle |
Boundary layer processes Numerical modeling and data assimilation Atmospheric Dynamics atmospheric boundary layer subtropical South Atlantic Ocean lidar meso-NH numerical simulations Lidar In-Space Technology Experiment [SDU]Sciences of the Universe [physics] Cosma-Averseng, Stéphanie Flamant, Cyrille Pelon, Jacques Palm, Stephen P. Schwemmer, Geary K. The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
topic_facet |
Boundary layer processes Numerical modeling and data assimilation Atmospheric Dynamics atmospheric boundary layer subtropical South Atlantic Ocean lidar meso-NH numerical simulations Lidar In-Space Technology Experiment [SDU]Sciences of the Universe [physics] |
description |
International audience This paper focuses on the structure of the marine boundary layer in an convergence region between easterly (trade winds) and westerly flows, over the Subtropical South Atlantic Ocean on 15 September 1994 using an unprecedented combination of spaceborne and airborne lidar observations, airborne Radar Ocean Wave Spectrometer and dropsondes system, and three-dimensional modeling. Methodologies previously developed to determine the marine atmospheric boundary layer (MABL) depth and cloud top heights from airborne lidar measurements are successfully applied to spaceborne measurements. Nested numerical simulations have been performed in this case study. It is shown that the MABL structure in this region (observed with lidar and simulated) collapsed dramatically in connection with a marked decrease of wind speed and near-zero turbulent kinetic energy due to specific synoptic conditions. |
author2 |
Service d'aéronomie (SA) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Science Systems and Applications, Inc. Lanham (SSAI) NASA Goddard Space Flight Center (GSFC) |
format |
Article in Journal/Newspaper |
author |
Cosma-Averseng, Stéphanie Flamant, Cyrille Pelon, Jacques Palm, Stephen P. Schwemmer, Geary K. |
author_facet |
Cosma-Averseng, Stéphanie Flamant, Cyrille Pelon, Jacques Palm, Stephen P. Schwemmer, Geary K. |
author_sort |
Cosma-Averseng, Stéphanie |
title |
The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
title_short |
The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
title_full |
The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
title_fullStr |
The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
title_full_unstemmed |
The cloudy atmospheric boundary layer over the subtropical South Atlantic Ocean: Airborne-spaceborne lidar observations and numerical simulations |
title_sort |
cloudy atmospheric boundary layer over the subtropical south atlantic ocean: airborne-spaceborne lidar observations and numerical simulations |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.science/hal-04110036 https://hal.science/hal-04110036/document https://hal.science/hal-04110036/file/Journal%20of%20Geophysical%20Research%20Atmospheres%20-%202003%20-%20Cosma%E2%80%90Averseng%20-%20The%20cloudy%20atmospheric%20boundary%20layer%20over%20the.pdf https://doi.org/10.1029/2002JD002368 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-04110036 Journal of Geophysical Research: Atmospheres, 2003, 108 (D7), ⟨10.1029/2002JD002368⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2002JD002368 hal-04110036 https://hal.science/hal-04110036 https://hal.science/hal-04110036/document https://hal.science/hal-04110036/file/Journal%20of%20Geophysical%20Research%20Atmospheres%20-%202003%20-%20Cosma%E2%80%90Averseng%20-%20The%20cloudy%20atmospheric%20boundary%20layer%20over%20the.pdf BIBCODE: 2003JGRD.108.4220C doi:10.1029/2002JD002368 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2002JD002368 |
container_title |
Journal of Geophysical Research |
container_volume |
108 |
container_issue |
D7 |
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1790608023149871104 |