Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements
Aircraft measurements are used to characterize properties of clear-air turbulence in the lower Arctic troposphere. For typical vertical resolutions in general circulation models, there is evidence for both downgradient and countergradient vertical turbulent transport of momentum and heat in the most...
Published in: | Boundary-Layer Meteorology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
SPRINGER
2016
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/41148/ https://epic.awi.de/id/eprint/41148/1/Aliabadi-2016-BoundaryLayerMeteorology.pdf http://link.springer.com/article/10.1007/s10546-016-0164-7 https://hdl.handle.net/10013/epic.48196 https://hdl.handle.net/10013/epic.48196.d001 |
id |
ftawi:oai:epic.awi.de:41148 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:41148 2023-05-15T14:27:38+02:00 Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements Aliabadi, Amir A. Staebler, Ralf Liu, Michael Herber, Andreas 2016-06-16 application/pdf https://epic.awi.de/id/eprint/41148/ https://epic.awi.de/id/eprint/41148/1/Aliabadi-2016-BoundaryLayerMeteorology.pdf http://link.springer.com/article/10.1007/s10546-016-0164-7 https://hdl.handle.net/10013/epic.48196 https://hdl.handle.net/10013/epic.48196.d001 unknown SPRINGER https://epic.awi.de/id/eprint/41148/1/Aliabadi-2016-BoundaryLayerMeteorology.pdf https://hdl.handle.net/10013/epic.48196.d001 Aliabadi, A. A. , Staebler, R. , Liu, M. and Herber, A. orcid:0000-0001-6651-3835 (2016) Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements , Boundary-Layer Meteorology, pp. 1-28 . doi:10.1007/s10546-016-0164-7 <https://doi.org/10.1007/s10546-016-0164-7> , hdl:10013/epic.48196 EPIC3Boundary-Layer Meteorology, SPRINGER, pp. 1-28, ISSN: 0006-8314 Article peerRev 2016 ftawi https://doi.org/10.1007/s10546-016-0164-7 2021-12-24T15:41:40Z Aircraft measurements are used to characterize properties of clear-air turbulence in the lower Arctic troposphere. For typical vertical resolutions in general circulation models, there is evidence for both downgradient and countergradient vertical turbulent transport of momentum and heat in the mostly statically stable conditions within both the boundary layer and the free troposphere. Countergradient transport is enhanced in the free troposphere compared to the boundary layer. Three parametrizations are suggested to formulate the turbulent heat flux and are evaluated using the observations. The parametrization that accounts for the anisotropic nature of turbulence and buoyancy flux predicts both observed downgradient and countergradient transport of heat more accurately than those that do not. The inverse turbulent Prandtl number is found to only weakly decrease with increasing gradient Richardson number in a statistically significant way, but with large scatter in the data. The suggested parametrizations can potentially improve the performance of regional and global atmospheric models. Article in Journal/Newspaper Arctic Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Boundary-Layer Meteorology 161 1 99 126 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Aircraft measurements are used to characterize properties of clear-air turbulence in the lower Arctic troposphere. For typical vertical resolutions in general circulation models, there is evidence for both downgradient and countergradient vertical turbulent transport of momentum and heat in the mostly statically stable conditions within both the boundary layer and the free troposphere. Countergradient transport is enhanced in the free troposphere compared to the boundary layer. Three parametrizations are suggested to formulate the turbulent heat flux and are evaluated using the observations. The parametrization that accounts for the anisotropic nature of turbulence and buoyancy flux predicts both observed downgradient and countergradient transport of heat more accurately than those that do not. The inverse turbulent Prandtl number is found to only weakly decrease with increasing gradient Richardson number in a statistically significant way, but with large scatter in the data. The suggested parametrizations can potentially improve the performance of regional and global atmospheric models. |
format |
Article in Journal/Newspaper |
author |
Aliabadi, Amir A. Staebler, Ralf Liu, Michael Herber, Andreas |
spellingShingle |
Aliabadi, Amir A. Staebler, Ralf Liu, Michael Herber, Andreas Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
author_facet |
Aliabadi, Amir A. Staebler, Ralf Liu, Michael Herber, Andreas |
author_sort |
Aliabadi, Amir A. |
title |
Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
title_short |
Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
title_full |
Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
title_fullStr |
Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
title_full_unstemmed |
Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements |
title_sort |
characterization and parametrization of reynolds stress and turbulent heat flux in the stably-stratified lower arctic troposphere using aircraft measurements |
publisher |
SPRINGER |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/41148/ https://epic.awi.de/id/eprint/41148/1/Aliabadi-2016-BoundaryLayerMeteorology.pdf http://link.springer.com/article/10.1007/s10546-016-0164-7 https://hdl.handle.net/10013/epic.48196 https://hdl.handle.net/10013/epic.48196.d001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
EPIC3Boundary-Layer Meteorology, SPRINGER, pp. 1-28, ISSN: 0006-8314 |
op_relation |
https://epic.awi.de/id/eprint/41148/1/Aliabadi-2016-BoundaryLayerMeteorology.pdf https://hdl.handle.net/10013/epic.48196.d001 Aliabadi, A. A. , Staebler, R. , Liu, M. and Herber, A. orcid:0000-0001-6651-3835 (2016) Characterization and Parametrization of Reynolds Stress and Turbulent Heat Flux in the Stably-Stratified Lower Arctic Troposphere Using Aircraft Measurements , Boundary-Layer Meteorology, pp. 1-28 . doi:10.1007/s10546-016-0164-7 <https://doi.org/10.1007/s10546-016-0164-7> , hdl:10013/epic.48196 |
op_doi |
https://doi.org/10.1007/s10546-016-0164-7 |
container_title |
Boundary-Layer Meteorology |
container_volume |
161 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
126 |
_version_ |
1766301457218273280 |