The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study
The mostly ice covered Arctic Ocean is dominated by low-level liquid- or mixed-phase clouds.Turbulence within stratocumulus is primarily driven by cloud top cooling that induces convective instability. Using a suite of in situ and remote sensing instruments we characterize turbulent mixing in Arctic...
Published in: | Journal of Geophysical Research: Atmospheres |
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Online Access: | http://www.osti.gov/servlets/purl/1466742 https://www.osti.gov/biblio/1466742 https://doi.org/10.1002/2017JD027234 |
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ftosti:oai:osti.gov:1466742 2023-07-30T04:00:36+02:00 The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study Brooks, Ian M. Tjernström, Michael Persson, P. Ola G. Shupe, Matthew D. Atkinson, Rebecca A. Canut, Guylaine Birch, Cathryn E. Mauritsen, Thorsten Sedlar, Joseph Brooks, Barbara J. 2022-03-30 application/pdf http://www.osti.gov/servlets/purl/1466742 https://www.osti.gov/biblio/1466742 https://doi.org/10.1002/2017JD027234 unknown http://www.osti.gov/servlets/purl/1466742 https://www.osti.gov/biblio/1466742 https://doi.org/10.1002/2017JD027234 doi:10.1002/2017JD027234 54 ENVIRONMENTAL SCIENCES 2022 ftosti https://doi.org/10.1002/2017JD027234 2023-07-11T09:28:30Z The mostly ice covered Arctic Ocean is dominated by low-level liquid- or mixed-phase clouds.Turbulence within stratocumulus is primarily driven by cloud top cooling that induces convective instability. Using a suite of in situ and remote sensing instruments we characterize turbulent mixing in Arctic stratocumulus, and for the first time we estimate profiles of the gradient Richardson number at relatively high resolution in both time (10 min) and altitude (10 m). It is found that the mixing occurs both within the cloud,as expected, and by wind shear instability near the surface. About 75% of the time these two layers are separated by a stably stratified inversion at 100–200 m altitude. Exceptions are associated with low cloud bases that allow the cloud-driven turbulence to reach the surface. Lastly, the results imply that turbulent coupling between the surface and the cloud is sporadic or intermittent. Other/Unknown Material Arctic Arctic Ocean SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Arctic Ocean Journal of Geophysical Research: Atmospheres 122 18 9685 9704 |
institution |
Open Polar |
collection |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
op_collection_id |
ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES |
spellingShingle |
54 ENVIRONMENTAL SCIENCES Brooks, Ian M. Tjernström, Michael Persson, P. Ola G. Shupe, Matthew D. Atkinson, Rebecca A. Canut, Guylaine Birch, Cathryn E. Mauritsen, Thorsten Sedlar, Joseph Brooks, Barbara J. The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
The mostly ice covered Arctic Ocean is dominated by low-level liquid- or mixed-phase clouds.Turbulence within stratocumulus is primarily driven by cloud top cooling that induces convective instability. Using a suite of in situ and remote sensing instruments we characterize turbulent mixing in Arctic stratocumulus, and for the first time we estimate profiles of the gradient Richardson number at relatively high resolution in both time (10 min) and altitude (10 m). It is found that the mixing occurs both within the cloud,as expected, and by wind shear instability near the surface. About 75% of the time these two layers are separated by a stably stratified inversion at 100–200 m altitude. Exceptions are associated with low cloud bases that allow the cloud-driven turbulence to reach the surface. Lastly, the results imply that turbulent coupling between the surface and the cloud is sporadic or intermittent. |
author |
Brooks, Ian M. Tjernström, Michael Persson, P. Ola G. Shupe, Matthew D. Atkinson, Rebecca A. Canut, Guylaine Birch, Cathryn E. Mauritsen, Thorsten Sedlar, Joseph Brooks, Barbara J. |
author_facet |
Brooks, Ian M. Tjernström, Michael Persson, P. Ola G. Shupe, Matthew D. Atkinson, Rebecca A. Canut, Guylaine Birch, Cathryn E. Mauritsen, Thorsten Sedlar, Joseph Brooks, Barbara J. |
author_sort |
Brooks, Ian M. |
title |
The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
title_short |
The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
title_full |
The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
title_fullStr |
The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
title_full_unstemmed |
The Turbulent Structure of the Arctic Summer Boundary Layer During The Arctic Summer Cloud-Ocean Study |
title_sort |
turbulent structure of the arctic summer boundary layer during the arctic summer cloud-ocean study |
publishDate |
2022 |
url |
http://www.osti.gov/servlets/purl/1466742 https://www.osti.gov/biblio/1466742 https://doi.org/10.1002/2017JD027234 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
http://www.osti.gov/servlets/purl/1466742 https://www.osti.gov/biblio/1466742 https://doi.org/10.1002/2017JD027234 doi:10.1002/2017JD027234 |
op_doi |
https://doi.org/10.1002/2017JD027234 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
122 |
container_issue |
18 |
container_start_page |
9685 |
op_container_end_page |
9704 |
_version_ |
1772811119139749888 |