Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)
<p>Observations collected during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) provide a detailed description of the impact of thermodynamic and kinematic forcings on atmospheric boundary layer (ABL) stability in the central Arctic. This study reveals that...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-10-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/23/13087/2023/acp-23-13087-2023.pdf |
| _version_ | 1797658153683255296 |
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| author | G. C. Jozef G. C. Jozef G. C. Jozef J. J. Cassano J. J. Cassano J. J. Cassano S. Dahlke M. Dice M. Dice M. Dice C. J. Cox G. de Boer G. de Boer G. de Boer |
| author_facet | G. C. Jozef G. C. Jozef G. C. Jozef J. J. Cassano J. J. Cassano J. J. Cassano S. Dahlke M. Dice M. Dice M. Dice C. J. Cox G. de Boer G. de Boer G. de Boer |
| author_sort | G. C. Jozef |
| collection | DOAJ |
| description | <p>Observations collected during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) provide a detailed description of the impact of thermodynamic and kinematic forcings on atmospheric boundary layer (ABL) stability in the central Arctic. This study reveals that the Arctic ABL is stable and near-neutral with similar frequencies, and strong stability is the most persistent of all stability regimes. MOSAiC radiosonde observations, in conjunction with observations from additional measurement platforms, including a 10 m meteorological tower, ceilometer, microwave radiometer, and radiation station, provide insight into the relationships between atmospheric stability and various atmospheric thermodynamic and kinematic forcings of ABL turbulence and how these relationships differ by season. We found that stronger stability largely occurs in low-wind (i.e., wind speeds are slow), low-radiation (i.e., surface radiative fluxes are minimal) environments; a very shallow mixed ABL forms in low-wind, high-radiation environments; weak stability occurs in high-wind, moderate-radiation environments; and a near-neutral ABL forms in high-wind, high-radiation environments. Surface pressure (a proxy for synoptic staging) partially explains the observed wind speeds for different stability regimes. Cloud frequency and atmospheric moisture contribute to the observed surface radiation budget. Unique to summer, stronger stability may also form when moist air is advected from over the warmer open ocean to over the colder sea ice surface, which decouples the colder near-surface atmosphere from the advected layer, and is identifiable through observations of fog and atmospheric moisture.</p> |
| first_indexed | 2024-03-11T17:55:00Z |
| format | Article |
| id | doaj.art-5db7f0d32a7942d287f48ef152204ef4 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-03-11T17:55:00Z |
| publishDate | 2023-10-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-5db7f0d32a7942d287f48ef152204ef42023-10-17T13:26:16ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242023-10-0123130871310610.5194/acp-23-13087-2023Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC)G. C. Jozef0G. C. Jozef1G. C. Jozef2J. J. Cassano3J. J. Cassano4J. J. Cassano5S. Dahlke6M. Dice7M. Dice8M. Dice9C. J. Cox10G. de Boer11G. de Boer12G. de Boer13Dept. of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center, University of Colorado Boulder, Boulder, CO, USADept. of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center, University of Colorado Boulder, Boulder, CO, USAAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, GermanyDept. of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center, University of Colorado Boulder, Boulder, CO, USANOAA Physical Sciences Laboratory, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANOAA Physical Sciences Laboratory, Boulder, CO, USAIntegrated Remote and In Situ Sensing, University of Colorado Boulder, Boulder, CO, USA<p>Observations collected during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) provide a detailed description of the impact of thermodynamic and kinematic forcings on atmospheric boundary layer (ABL) stability in the central Arctic. This study reveals that the Arctic ABL is stable and near-neutral with similar frequencies, and strong stability is the most persistent of all stability regimes. MOSAiC radiosonde observations, in conjunction with observations from additional measurement platforms, including a 10 m meteorological tower, ceilometer, microwave radiometer, and radiation station, provide insight into the relationships between atmospheric stability and various atmospheric thermodynamic and kinematic forcings of ABL turbulence and how these relationships differ by season. We found that stronger stability largely occurs in low-wind (i.e., wind speeds are slow), low-radiation (i.e., surface radiative fluxes are minimal) environments; a very shallow mixed ABL forms in low-wind, high-radiation environments; weak stability occurs in high-wind, moderate-radiation environments; and a near-neutral ABL forms in high-wind, high-radiation environments. Surface pressure (a proxy for synoptic staging) partially explains the observed wind speeds for different stability regimes. Cloud frequency and atmospheric moisture contribute to the observed surface radiation budget. Unique to summer, stronger stability may also form when moist air is advected from over the warmer open ocean to over the colder sea ice surface, which decouples the colder near-surface atmosphere from the advected layer, and is identifiable through observations of fog and atmospheric moisture.</p>https://acp.copernicus.org/articles/23/13087/2023/acp-23-13087-2023.pdf |
| spellingShingle | G. C. Jozef G. C. Jozef G. C. Jozef J. J. Cassano J. J. Cassano J. J. Cassano S. Dahlke M. Dice M. Dice M. Dice C. J. Cox G. de Boer G. de Boer G. de Boer Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Atmospheric Chemistry and Physics |
| title | Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) |
| title_full | Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) |
| title_fullStr | Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) |
| title_full_unstemmed | Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) |
| title_short | Thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central Arctic during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) |
| title_sort | thermodynamic and kinematic drivers of atmospheric boundary layer stability in the central arctic during the multidisciplinary drifting observatory for the study of arctic climate mosaic |
| url | https://acp.copernicus.org/articles/23/13087/2023/acp-23-13087-2023.pdf |
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