The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks
One of the most intense air mass transformations on Earth happens when cold air flows from frozen surfaces to much warmer open water in cold-air outbreaks (CAOs), a process captured beautifully in satellite imagery. However, despite the ubiquity of the CAO cloud regime over high-latitude oceans, we...
Published in: | Bulletin of the American Meteorological Society |
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Online Access: | http://www.osti.gov/servlets/purl/1876700 https://www.osti.gov/biblio/1876700 https://doi.org/10.1175/bams-d-21-0044.1 |
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ftosti:oai:osti.gov:1876700 2023-07-30T04:02:03+02:00 The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks Geerts, Bart Giangrande, Scott E. McFarquhar, Greg M. Xue, Lulin Abel, Steven J. Comstock, Jennifer M. Crewell, Susanne DeMott, Paul J. Ebell, Kerstin Field, Paul Hill, Thomas J. Hunzinger, Alexis Jensen, Michael P. Johnson, Karen L. Juliano, Timothy W. Kollias, Pavlos Kosovic, Branko Lackner, Christian Luke, Ed Lüpkes, Christof Matthews, Alyssa A. Neggers, Roel Ovchinnikov, Mikhail Powers, Heath Shupe, Matthew D. Spengler, Thomas Swanson, Benjamin E. Tjernström, Michael Theisen, Adam K. Wales, Nathan A. Wang, Yonggang Wendisch, Manfred Wu, Peng 2023-05-30 application/pdf http://www.osti.gov/servlets/purl/1876700 https://www.osti.gov/biblio/1876700 https://doi.org/10.1175/bams-d-21-0044.1 unknown http://www.osti.gov/servlets/purl/1876700 https://www.osti.gov/biblio/1876700 https://doi.org/10.1175/bams-d-21-0044.1 doi:10.1175/bams-d-21-0044.1 54 ENVIRONMENTAL SCIENCES 2023 ftosti https://doi.org/10.1175/bams-d-21-0044.1 2023-07-11T10:13:31Z One of the most intense air mass transformations on Earth happens when cold air flows from frozen surfaces to much warmer open water in cold-air outbreaks (CAOs), a process captured beautifully in satellite imagery. However, despite the ubiquity of the CAO cloud regime over high-latitude oceans, we have a rather poor understanding of its properties, its role in energy and water cycles, and its treatment in weather and climate models. The Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) was conducted to better understand this regime and its representation in models. COMBLE aimed to examine the relations between surface fluxes, boundary layer structure, aerosol, cloud, and precipitation properties, and mesoscale circulations in marine CAOs. Processes affecting these properties largely fall in a range of scales where boundary layer processes, convection, and precipitation are tightly coupled, which makes accurate representation of the CAO cloud regime in numerical weather prediction and global climate models most challenging. COMBLE deployed an Atmospheric Radiation Measurement Mobile Facility at a coastal site in northern Scandinavia (69°N), with additional instruments on Bear Island (75°N), from December 2019 to May 2020. CAO conditions were experienced 19% (21%) of the time at the main site (on Bear Island). A comprehensive suite of continuous in situ and remote sensing observations of atmospheric conditions, clouds, precipitation, and aerosol were collected. Because of the clouds’ well-defined origin, their shallow depth, and the broad range of observed temperature and aerosol concentrations, the COMBLE dataset provides a powerful modeling testbed for improving the representation of mixed-phase cloud processes in large-eddy simulations and large-scale models. Other/Unknown Material Arctic Bear Island SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Arctic Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Bulletin of the American Meteorological Society 103 5 E1371 E1389 |
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 Geerts, Bart Giangrande, Scott E. McFarquhar, Greg M. Xue, Lulin Abel, Steven J. Comstock, Jennifer M. Crewell, Susanne DeMott, Paul J. Ebell, Kerstin Field, Paul Hill, Thomas J. Hunzinger, Alexis Jensen, Michael P. Johnson, Karen L. Juliano, Timothy W. Kollias, Pavlos Kosovic, Branko Lackner, Christian Luke, Ed Lüpkes, Christof Matthews, Alyssa A. Neggers, Roel Ovchinnikov, Mikhail Powers, Heath Shupe, Matthew D. Spengler, Thomas Swanson, Benjamin E. Tjernström, Michael Theisen, Adam K. Wales, Nathan A. Wang, Yonggang Wendisch, Manfred Wu, Peng The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
topic_facet |
54 ENVIRONMENTAL SCIENCES |
description |
One of the most intense air mass transformations on Earth happens when cold air flows from frozen surfaces to much warmer open water in cold-air outbreaks (CAOs), a process captured beautifully in satellite imagery. However, despite the ubiquity of the CAO cloud regime over high-latitude oceans, we have a rather poor understanding of its properties, its role in energy and water cycles, and its treatment in weather and climate models. The Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) was conducted to better understand this regime and its representation in models. COMBLE aimed to examine the relations between surface fluxes, boundary layer structure, aerosol, cloud, and precipitation properties, and mesoscale circulations in marine CAOs. Processes affecting these properties largely fall in a range of scales where boundary layer processes, convection, and precipitation are tightly coupled, which makes accurate representation of the CAO cloud regime in numerical weather prediction and global climate models most challenging. COMBLE deployed an Atmospheric Radiation Measurement Mobile Facility at a coastal site in northern Scandinavia (69°N), with additional instruments on Bear Island (75°N), from December 2019 to May 2020. CAO conditions were experienced 19% (21%) of the time at the main site (on Bear Island). A comprehensive suite of continuous in situ and remote sensing observations of atmospheric conditions, clouds, precipitation, and aerosol were collected. Because of the clouds’ well-defined origin, their shallow depth, and the broad range of observed temperature and aerosol concentrations, the COMBLE dataset provides a powerful modeling testbed for improving the representation of mixed-phase cloud processes in large-eddy simulations and large-scale models. |
author |
Geerts, Bart Giangrande, Scott E. McFarquhar, Greg M. Xue, Lulin Abel, Steven J. Comstock, Jennifer M. Crewell, Susanne DeMott, Paul J. Ebell, Kerstin Field, Paul Hill, Thomas J. Hunzinger, Alexis Jensen, Michael P. Johnson, Karen L. Juliano, Timothy W. Kollias, Pavlos Kosovic, Branko Lackner, Christian Luke, Ed Lüpkes, Christof Matthews, Alyssa A. Neggers, Roel Ovchinnikov, Mikhail Powers, Heath Shupe, Matthew D. Spengler, Thomas Swanson, Benjamin E. Tjernström, Michael Theisen, Adam K. Wales, Nathan A. Wang, Yonggang Wendisch, Manfred Wu, Peng |
author_facet |
Geerts, Bart Giangrande, Scott E. McFarquhar, Greg M. Xue, Lulin Abel, Steven J. Comstock, Jennifer M. Crewell, Susanne DeMott, Paul J. Ebell, Kerstin Field, Paul Hill, Thomas J. Hunzinger, Alexis Jensen, Michael P. Johnson, Karen L. Juliano, Timothy W. Kollias, Pavlos Kosovic, Branko Lackner, Christian Luke, Ed Lüpkes, Christof Matthews, Alyssa A. Neggers, Roel Ovchinnikov, Mikhail Powers, Heath Shupe, Matthew D. Spengler, Thomas Swanson, Benjamin E. Tjernström, Michael Theisen, Adam K. Wales, Nathan A. Wang, Yonggang Wendisch, Manfred Wu, Peng |
author_sort |
Geerts, Bart |
title |
The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
title_short |
The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
title_full |
The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
title_fullStr |
The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
title_full_unstemmed |
The COMBLE Campaign: A Study of Marine Boundary Layer Clouds in Arctic Cold-Air Outbreaks |
title_sort |
comble campaign: a study of marine boundary layer clouds in arctic cold-air outbreaks |
publishDate |
2023 |
url |
http://www.osti.gov/servlets/purl/1876700 https://www.osti.gov/biblio/1876700 https://doi.org/10.1175/bams-d-21-0044.1 |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) |
geographic |
Arctic Bear Island |
geographic_facet |
Arctic Bear Island |
genre |
Arctic Bear Island |
genre_facet |
Arctic Bear Island |
op_relation |
http://www.osti.gov/servlets/purl/1876700 https://www.osti.gov/biblio/1876700 https://doi.org/10.1175/bams-d-21-0044.1 doi:10.1175/bams-d-21-0044.1 |
op_doi |
https://doi.org/10.1175/bams-d-21-0044.1 |
container_title |
Bulletin of the American Meteorological Society |
container_volume |
103 |
container_issue |
5 |
container_start_page |
E1371 |
op_container_end_page |
E1389 |
_version_ |
1772812776995028992 |