Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment
Mixed-phase arctic stratus clouds are the predominant cloud type in the Arctic (Curry et al. 2000) and through various feedback mechanisms exert a strong influence on the Arctic climate. Perhaps one of the most intriguing of their features is that they tend to have liquid tops that precipitate ice....
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Pennsylvania State University, University Park, Pennsylvania (United States)
2005
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ftunivnotexas:info:ark/67531/metadc778995 2023-05-15T14:48:16+02:00 Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment Avramov, A. Harringston, J.Y. Verlinde, J. United States. Department of Energy. Office of Science. 2005-03-18 vp. Text https://digital.library.unt.edu/ark:/67531/metadc778995/ English eng Pennsylvania State University, University Park, Pennsylvania (United States) grantno: 327421-A-N4 osti: 841657 https://digital.library.unt.edu/ark:/67531/metadc778995/ ark: ark:/67531/metadc778995 Fifteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting, Daytona Beach, FL (US), 03/14/2005--03/18/2005 Removal Beaufort Sea Feedback Clouds Stratus Clouds Nucleation Environmental Impacts Alaska Radiative Cooling Coastal Dynamics Maintenance 54 Environmental Sciences Radiations Simulation Water Stratus Clouds Precipitation Article 2005 ftunivnotexas 2019-06-29T22:08:22Z Mixed-phase arctic stratus clouds are the predominant cloud type in the Arctic (Curry et al. 2000) and through various feedback mechanisms exert a strong influence on the Arctic climate. Perhaps one of the most intriguing of their features is that they tend to have liquid tops that precipitate ice. Despite the fact that this situation is colloidally unstable, these cloud systems are quite long lived - from a few days to over a couple of weeks. It has been hypothesized that mixed-phase clouds are maintained through a balance between liquid water condensation resulting from the cloud-top radiative cooling and ice removal by precipitation (Pinto 1998; Harrington et al. 1999). In their modeling study Harrington et al. (1999) found that the maintenance of this balance depends strongly on the ambient concentration of ice forming nucleus (IFN). In a follow-up study, Jiang et al. (2002), using only 30% of IFN concentration predicted by Meyers et al. (1992) IFN parameterization were able to obtain results similar to the observations reported by Pinto (1998). The IFN concentration measurements collected during the Mixed-Phase Arctic Cloud Experiment (M-PACE), conducted in October 2004 over the North Slope of Alaska and the Beaufort Sea (Verlinde et al. 2005), also showed much lower values then those predicted (Prenne, pers. comm.) by currently accepted ice nucleation parameterizations (e.g. Meyers et al. 1992). The goal of this study is to use the extensive IFN data taken during M-PACE to examine what effects low IFN concentrations have on mesoscale cloud structure and coastal dynamics. Article in Journal/Newspaper Arctic Beaufort Sea north slope Alaska University of North Texas: UNT Digital Library Arctic |
institution |
Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
Removal Beaufort Sea Feedback Clouds Stratus Clouds Nucleation Environmental Impacts Alaska Radiative Cooling Coastal Dynamics Maintenance 54 Environmental Sciences Radiations Simulation Water Stratus Clouds Precipitation |
spellingShingle |
Removal Beaufort Sea Feedback Clouds Stratus Clouds Nucleation Environmental Impacts Alaska Radiative Cooling Coastal Dynamics Maintenance 54 Environmental Sciences Radiations Simulation Water Stratus Clouds Precipitation Avramov, A. Harringston, J.Y. Verlinde, J. Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
topic_facet |
Removal Beaufort Sea Feedback Clouds Stratus Clouds Nucleation Environmental Impacts Alaska Radiative Cooling Coastal Dynamics Maintenance 54 Environmental Sciences Radiations Simulation Water Stratus Clouds Precipitation |
description |
Mixed-phase arctic stratus clouds are the predominant cloud type in the Arctic (Curry et al. 2000) and through various feedback mechanisms exert a strong influence on the Arctic climate. Perhaps one of the most intriguing of their features is that they tend to have liquid tops that precipitate ice. Despite the fact that this situation is colloidally unstable, these cloud systems are quite long lived - from a few days to over a couple of weeks. It has been hypothesized that mixed-phase clouds are maintained through a balance between liquid water condensation resulting from the cloud-top radiative cooling and ice removal by precipitation (Pinto 1998; Harrington et al. 1999). In their modeling study Harrington et al. (1999) found that the maintenance of this balance depends strongly on the ambient concentration of ice forming nucleus (IFN). In a follow-up study, Jiang et al. (2002), using only 30% of IFN concentration predicted by Meyers et al. (1992) IFN parameterization were able to obtain results similar to the observations reported by Pinto (1998). The IFN concentration measurements collected during the Mixed-Phase Arctic Cloud Experiment (M-PACE), conducted in October 2004 over the North Slope of Alaska and the Beaufort Sea (Verlinde et al. 2005), also showed much lower values then those predicted (Prenne, pers. comm.) by currently accepted ice nucleation parameterizations (e.g. Meyers et al. 1992). The goal of this study is to use the extensive IFN data taken during M-PACE to examine what effects low IFN concentrations have on mesoscale cloud structure and coastal dynamics. |
author2 |
United States. Department of Energy. Office of Science. |
format |
Article in Journal/Newspaper |
author |
Avramov, A. Harringston, J.Y. Verlinde, J. |
author_facet |
Avramov, A. Harringston, J.Y. Verlinde, J. |
author_sort |
Avramov, A. |
title |
Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
title_short |
Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
title_full |
Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
title_fullStr |
Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
title_full_unstemmed |
Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment |
title_sort |
mesoscale modeling during mixed-phase arctic cloud experiment |
publisher |
Pennsylvania State University, University Park, Pennsylvania (United States) |
publishDate |
2005 |
url |
https://digital.library.unt.edu/ark:/67531/metadc778995/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Beaufort Sea north slope Alaska |
genre_facet |
Arctic Beaufort Sea north slope Alaska |
op_source |
Fifteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting, Daytona Beach, FL (US), 03/14/2005--03/18/2005 |
op_relation |
grantno: 327421-A-N4 osti: 841657 https://digital.library.unt.edu/ark:/67531/metadc778995/ ark: ark:/67531/metadc778995 |
_version_ |
1766319366049103872 |