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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ftmdpi:oai:mdpi.com:/2073-4433/12/11/1398/ 2023-08-20T04:04:35+02:00 Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5 Mingyi Gu G. W. K. Moore Kevin Wood Zhaomin Wang agris 2021-10-25 application/pdf https://doi.org/10.3390/atmos12111398 EN eng Multidisciplinary Digital Publishing Institute Meteorology https://dx.doi.org/10.3390/atmos12111398 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 12; Issue 11; Pages: 1398 planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas Text 2021 ftmdpi https://doi.org/10.3390/atmos12111398 2023-08-01T03:03:39Z 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. Text Arctic Arctic Ocean Beaufort Sea Chukchi Icebreaker MDPI Open Access Publishing Arctic Arctic Ocean Atmosphere 12 11 1398 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas |
spellingShingle |
planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas 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 |
topic_facet |
planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas |
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 |
Text |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/atmos12111398 |
op_coverage |
agris |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Beaufort Sea Chukchi Icebreaker |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Chukchi Icebreaker |
op_source |
Atmosphere; Volume 12; Issue 11; Pages: 1398 |
op_relation |
Meteorology https://dx.doi.org/10.3390/atmos12111398 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos12111398 |
container_title |
Atmosphere |
container_volume |
12 |
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11 |
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1398 |
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1774714965495644160 |