Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5

The planetary boundary layer height (PBLH) is a diagnostic field related to the effective heat capacity of the lower atmosphere, both stable and convective, and it constrains motion in this layer as well as impacts surface warming. Here, we used radiosonde data from five icebreaker cruises to the Ch...

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Autores principales:	Mingyi Gu, G. W. K. Moore, Kevin Wood, Zhaomin Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/10af0939c6944a27bde9f526319118c5
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id	oai:doaj.org-article:10af0939c6944a27bde9f526319118c5
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spelling	oai:doaj.org-article:10af0939c6944a27bde9f526319118c52021-11-25T16:44:06ZPlanetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA510.3390/atmos121113982073-4433https://doaj.org/article/10af0939c6944a27bde9f526319118c52021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1398https://doaj.org/toc/2073-4433The planetary boundary layer height (PBLH) is a diagnostic field related to the effective heat capacity of the lower atmosphere, both stable and convective, and it constrains motion in this layer as well as impacts surface warming. Here, we used radiosonde data from five icebreaker cruises to the Chukchi and Beaufort Seas during both spring and fall to derive PBLH using the bulk Ri method, which were then compared with results from ERA5 reanalysis. The ERA5 PBLH was similar to but slightly lower than the ship observations. Clear and consistent seasonal changes were found in both the observations and the reanalysis: PBLH decreased from mid-May to mid-June and subsequently increased after August. The comparison with ERA5 shows that, besides surface temperature, biases in PBLH are also a function of wind direction, suggesting that the availability of upwind observations is also important in representing processes active in the boundary layer over the Arctic Ocean.Mingyi GuG. W. K. MooreKevin WoodZhaomin WangMDPI AGarticleplanetary boundary layer heights comparisonicebreaker cruises datasetChukchi and Beaufort SeasMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1398, p 1398 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas Meteorology. Climatology QC851-999
spellingShingle	planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas Meteorology. Climatology QC851-999 Mingyi Gu G. W. K. Moore Kevin Wood Zhaomin Wang Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
description	The planetary boundary layer height (PBLH) is a diagnostic field related to the effective heat capacity of the lower atmosphere, both stable and convective, and it constrains motion in this layer as well as impacts surface warming. Here, we used radiosonde data from five icebreaker cruises to the Chukchi and Beaufort Seas during both spring and fall to derive PBLH using the bulk Ri method, which were then compared with results from ERA5 reanalysis. The ERA5 PBLH was similar to but slightly lower than the ship observations. Clear and consistent seasonal changes were found in both the observations and the reanalysis: PBLH decreased from mid-May to mid-June and subsequently increased after August. The comparison with ERA5 shows that, besides surface temperature, biases in PBLH are also a function of wind direction, suggesting that the availability of upwind observations is also important in representing processes active in the boundary layer over the Arctic Ocean.
format	article
author	Mingyi Gu G. W. K. Moore Kevin Wood Zhaomin Wang
author_facet	Mingyi Gu G. W. K. Moore Kevin Wood Zhaomin Wang
author_sort	Mingyi Gu
title	Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
title_short	Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
title_full	Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
title_fullStr	Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
title_full_unstemmed	Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5
title_sort	planetary boundary layer heights from cruises in spring to autumn chukchi-beaufort sea compared with era5
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/10af0939c6944a27bde9f526319118c5
work_keys_str_mv	AT mingyigu planetaryboundarylayerheightsfromcruisesinspringtoautumnchukchibeaufortseacomparedwithera5 AT gwkmoore planetaryboundarylayerheightsfromcruisesinspringtoautumnchukchibeaufortseacomparedwithera5 AT kevinwood planetaryboundarylayerheightsfromcruisesinspringtoautumnchukchibeaufortseacomparedwithera5 AT zhaominwang planetaryboundarylayerheightsfromcruisesinspringtoautumnchukchibeaufortseacomparedwithera5
_version_	1718413000201732096

Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5

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