Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland
The experiment IGLOS (Investigation of the Greenland Boundary Layer Over Summit) was conducted in June and July 2002 in the central plateau of the Greenland inland ice. The German research aircraft Polar2, equipped with the turbulence measurement system Meteopod, was used to investigate turbulence a...
Published in: | Boundary-Layer Meteorology |
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ftoceanrep:oai:oceanrep.geomar.de:28487 2023-05-15T16:26:52+02:00 Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland Drüe, Clemens Heinemann, Günther 2007 text https://oceanrep.geomar.de/id/eprint/28487/ https://oceanrep.geomar.de/id/eprint/28487/1/Drue_Heinemann_2007_Boundary-Layer-Meteorology.pdf https://doi.org/10.1007/s10546-007-9175-8 en eng Springer https://oceanrep.geomar.de/id/eprint/28487/1/Drue_Heinemann_2007_Boundary-Layer-Meteorology.pdf Drüe, C. and Heinemann, G. (2007) Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland. Open Access Boundary-Layer Meteorology, 124 (3). pp. 361-381. DOI 10.1007/s10546-007-9175-8 <https://doi.org/10.1007/s10546-007-9175-8>. doi:10.1007/s10546-007-9175-8 cc_by_nc_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2007 ftoceanrep https://doi.org/10.1007/s10546-007-9175-8 2023-04-07T15:18:46Z The experiment IGLOS (Investigation of the Greenland Boundary Layer Over Summit) was conducted in June and July 2002 in the central plateau of the Greenland inland ice. The German research aircraft Polar2, equipped with the turbulence measurement system Meteopod, was used to investigate turbulence and radiation flux profiles near research station “Summit Camp”. Aircraft measurements are combined with measurements of radiation fluxes and turbulent quantities made from a 50 m tower at Summit Camp operated by Eidgenössische Technische Hochschule (ETH) Zürich. During all six flight missions, well-developed stable boundary layers were found. Even in high-wind conditions, the surface inversion thickness did not exceed roughly 100 m. The turbulent height of the stable boundary layer (SBL) was found to be much smaller than the surface inversion thickness. Above the surface layer, significant turbulent fluxes occurred only intermittently in intervals on the order of a few kilometres. Turbulent event fraction in the upper SBL shows the same dependence on gradient Richardson number as reported for near-surface measurements. Clear-air longwave radiation divergence was always found to contribute significantly to the SBL heat budget. In low-wind cases, radiative cooling even turned out to be dominant. Article in Journal/Newspaper Greenland IGLOS - Investigation of the Greenland boundary Layer over Summit OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Summit Camp ENVELOPE(-38.453,-38.453,72.579,72.579) Boundary-Layer Meteorology 124 3 361 381 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The experiment IGLOS (Investigation of the Greenland Boundary Layer Over Summit) was conducted in June and July 2002 in the central plateau of the Greenland inland ice. The German research aircraft Polar2, equipped with the turbulence measurement system Meteopod, was used to investigate turbulence and radiation flux profiles near research station “Summit Camp”. Aircraft measurements are combined with measurements of radiation fluxes and turbulent quantities made from a 50 m tower at Summit Camp operated by Eidgenössische Technische Hochschule (ETH) Zürich. During all six flight missions, well-developed stable boundary layers were found. Even in high-wind conditions, the surface inversion thickness did not exceed roughly 100 m. The turbulent height of the stable boundary layer (SBL) was found to be much smaller than the surface inversion thickness. Above the surface layer, significant turbulent fluxes occurred only intermittently in intervals on the order of a few kilometres. Turbulent event fraction in the upper SBL shows the same dependence on gradient Richardson number as reported for near-surface measurements. Clear-air longwave radiation divergence was always found to contribute significantly to the SBL heat budget. In low-wind cases, radiative cooling even turned out to be dominant. |
format |
Article in Journal/Newspaper |
author |
Drüe, Clemens Heinemann, Günther |
spellingShingle |
Drüe, Clemens Heinemann, Günther Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
author_facet |
Drüe, Clemens Heinemann, Günther |
author_sort |
Drüe, Clemens |
title |
Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
title_short |
Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
title_full |
Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
title_fullStr |
Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
title_full_unstemmed |
Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland |
title_sort |
characteristics of intermittent turbulence in the upper stable boundary layer over greenland |
publisher |
Springer |
publishDate |
2007 |
url |
https://oceanrep.geomar.de/id/eprint/28487/ https://oceanrep.geomar.de/id/eprint/28487/1/Drue_Heinemann_2007_Boundary-Layer-Meteorology.pdf https://doi.org/10.1007/s10546-007-9175-8 |
long_lat |
ENVELOPE(-38.453,-38.453,72.579,72.579) |
geographic |
Greenland Summit Camp |
geographic_facet |
Greenland Summit Camp |
genre |
Greenland IGLOS - Investigation of the Greenland boundary Layer over Summit |
genre_facet |
Greenland IGLOS - Investigation of the Greenland boundary Layer over Summit |
op_relation |
https://oceanrep.geomar.de/id/eprint/28487/1/Drue_Heinemann_2007_Boundary-Layer-Meteorology.pdf Drüe, C. and Heinemann, G. (2007) Characteristics of intermittent turbulence in the upper stable boundary layer over Greenland. Open Access Boundary-Layer Meteorology, 124 (3). pp. 361-381. DOI 10.1007/s10546-007-9175-8 <https://doi.org/10.1007/s10546-007-9175-8>. doi:10.1007/s10546-007-9175-8 |
op_rights |
cc_by_nc_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10546-007-9175-8 |
container_title |
Boundary-Layer Meteorology |
container_volume |
124 |
container_issue |
3 |
container_start_page |
361 |
op_container_end_page |
381 |
_version_ |
1766015871401066496 |