The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC

<jats:p>Abstract. The important roles that the atmospheric boundary layer (ABL) plays in the central Arctic climate system have been recognized, but the atmospheric boundary layer height (ABLH), defined as the layer of continuous turbulence adjacent to the surface, has rarely been investigated...

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Published in:Atmospheric Chemistry and Physics
Main Authors: Peng, Shijie, Yang, Qinghua, Shupe, Matthew D, Xi, Xingya, Han, Bo, Chen, Dake, Dahlke, Sandro, Liu, Changwei
Format: Article in Journal/Newspaper
Language:unknown
Published: Copernicus Publications 2023
Subjects:
Online Access:https://epic.awi.de/id/eprint/57959/
https://epic.awi.de/id/eprint/57959/1/acp-23-8683-2023.pdf
https://doi.org/10.5194/acp-23-8683-2023
https://hdl.handle.net/10013/epic.34503a04-8f9d-45c1-b849-365bd67ee186
id ftawi:oai:epic.awi.de:57959
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spelling ftawi:oai:epic.awi.de:57959 2023-10-09T21:47:45+02:00 The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC Peng, Shijie Yang, Qinghua Shupe, Matthew D Xi, Xingya Han, Bo Chen, Dake Dahlke, Sandro Liu, Changwei 2023-08-08 application/pdf https://epic.awi.de/id/eprint/57959/ https://epic.awi.de/id/eprint/57959/1/acp-23-8683-2023.pdf https://doi.org/10.5194/acp-23-8683-2023 https://hdl.handle.net/10013/epic.34503a04-8f9d-45c1-b849-365bd67ee186 unknown Copernicus Publications https://epic.awi.de/id/eprint/57959/1/acp-23-8683-2023.pdf Peng, S. , Yang, Q. , Shupe, M. D. , Xi, X. , Han, B. , Chen, D. , Dahlke, S. orcid:0000-0002-0395-9597 and Liu, C. (2023) The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC , Atmospheric Chemistry and Physics, 23 (15), pp. 8683-8703 . doi:10.5194/acp-23-8683-2023 <https://doi.org/10.5194/acp-23-8683-2023> , hdl:10013/epic.34503a04-8f9d-45c1-b849-365bd67ee186 EPIC3Atmospheric Chemistry and Physics, Copernicus Publications, 23(15), pp. 8683-8703, ISSN: 1680-7316 Article peerRev 2023 ftawi https://doi.org/10.5194/acp-23-8683-2023 2023-09-17T23:22:06Z <jats:p>Abstract. The important roles that the atmospheric boundary layer (ABL) plays in the central Arctic climate system have been recognized, but the atmospheric boundary layer height (ABLH), defined as the layer of continuous turbulence adjacent to the surface, has rarely been investigated. Using a year-round radiosonde dataset during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition, we improve a Richardson-number-based algorithm that takes cloud effects into consideration and subsequently analyze the characteristics and variability of the ABLH over the Arctic Ocean. The results reveal that the annual cycle is clearly characterized by a distinct peak in May and two respective minima in January and July. This annual variation in the ABLH is primarily controlled by the evolution of the ABL thermal structure. Temperature inversions in the winter and summer are intensified by seasonal radiative cooling and warm-air advection with the surface temperature constrained by melting, respectively, leading to the low ABLH at these times. Meteorological and turbulence variables also play a significant role in ABLH variation, including the near-surface potential temperature gradient, friction velocity, and turbulent kinetic energy (TKE) dissipation rate. In addition, the MOSAiC ABLH is more suppressed than the ABLH during the Surface Heat Budget of the Arctic Ocean (SHEBA) experiment in the summer, which indicates that there is large variability in the Arctic ABL structure during the summer melting season. </jats:p> Article in Journal/Newspaper Arctic Arctic Arctic Ocean Surface Heat Budget of the Arctic Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Atmospheric Chemistry and Physics 23 15 8683 8703
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 <jats:p>Abstract. The important roles that the atmospheric boundary layer (ABL) plays in the central Arctic climate system have been recognized, but the atmospheric boundary layer height (ABLH), defined as the layer of continuous turbulence adjacent to the surface, has rarely been investigated. Using a year-round radiosonde dataset during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition, we improve a Richardson-number-based algorithm that takes cloud effects into consideration and subsequently analyze the characteristics and variability of the ABLH over the Arctic Ocean. The results reveal that the annual cycle is clearly characterized by a distinct peak in May and two respective minima in January and July. This annual variation in the ABLH is primarily controlled by the evolution of the ABL thermal structure. Temperature inversions in the winter and summer are intensified by seasonal radiative cooling and warm-air advection with the surface temperature constrained by melting, respectively, leading to the low ABLH at these times. Meteorological and turbulence variables also play a significant role in ABLH variation, including the near-surface potential temperature gradient, friction velocity, and turbulent kinetic energy (TKE) dissipation rate. In addition, the MOSAiC ABLH is more suppressed than the ABLH during the Surface Heat Budget of the Arctic Ocean (SHEBA) experiment in the summer, which indicates that there is large variability in the Arctic ABL structure during the summer melting season. </jats:p>
format Article in Journal/Newspaper
author Peng, Shijie
Yang, Qinghua
Shupe, Matthew D
Xi, Xingya
Han, Bo
Chen, Dake
Dahlke, Sandro
Liu, Changwei
spellingShingle Peng, Shijie
Yang, Qinghua
Shupe, Matthew D
Xi, Xingya
Han, Bo
Chen, Dake
Dahlke, Sandro
Liu, Changwei
The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
author_facet Peng, Shijie
Yang, Qinghua
Shupe, Matthew D
Xi, Xingya
Han, Bo
Chen, Dake
Dahlke, Sandro
Liu, Changwei
author_sort Peng, Shijie
title The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
title_short The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
title_full The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
title_fullStr The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
title_full_unstemmed The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC
title_sort characteristics of atmospheric boundary layer height over the arctic ocean during mosaic
publisher Copernicus Publications
publishDate 2023
url https://epic.awi.de/id/eprint/57959/
https://epic.awi.de/id/eprint/57959/1/acp-23-8683-2023.pdf
https://doi.org/10.5194/acp-23-8683-2023
https://hdl.handle.net/10013/epic.34503a04-8f9d-45c1-b849-365bd67ee186
geographic Arctic
Arctic Ocean
geographic_facet Arctic
Arctic Ocean
genre Arctic
Arctic
Arctic Ocean
Surface Heat Budget of the Arctic Ocean
genre_facet Arctic
Arctic
Arctic Ocean
Surface Heat Budget of the Arctic Ocean
op_source EPIC3Atmospheric Chemistry and Physics, Copernicus Publications, 23(15), pp. 8683-8703, ISSN: 1680-7316
op_relation https://epic.awi.de/id/eprint/57959/1/acp-23-8683-2023.pdf
Peng, S. , Yang, Q. , Shupe, M. D. , Xi, X. , Han, B. , Chen, D. , Dahlke, S. orcid:0000-0002-0395-9597 and Liu, C. (2023) The characteristics of atmospheric boundary layer height over the Arctic Ocean during MOSAiC , Atmospheric Chemistry and Physics, 23 (15), pp. 8683-8703 . doi:10.5194/acp-23-8683-2023 <https://doi.org/10.5194/acp-23-8683-2023> , hdl:10013/epic.34503a04-8f9d-45c1-b849-365bd67ee186
op_doi https://doi.org/10.5194/acp-23-8683-2023
container_title Atmospheric Chemistry and Physics
container_volume 23
container_issue 15
container_start_page 8683
op_container_end_page 8703
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