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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/11/1398 |
| _version_ | 1827677355447943168 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:42:52Z |
| format | Article |
| id | doaj.art-10af0939c6944a27bde9f526319118c5 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T05:42:52Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-10af0939c6944a27bde9f526319118c52023-11-22T22:23:46ZengMDPI AGAtmosphere2073-44332021-10-011211139810.3390/atmos12111398Planetary Boundary Layer Heights from Cruises in Spring to Autumn Chukchi-Beaufort Sea Compared with ERA5Mingyi Gu0G. W. K. Moore1Kevin Wood2Zhaomin Wang3School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaDepartment of Physics, University of Toronto, Toronto, ON L5L 1C6, CanadaNOAA Pacific Marine Environmental Laboratory, Joint Institute for the Study of the Atmosphere and Ocean (JISAO), University of Washington, Seattle, WA 98115, USAKey Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Nanjing 210024, ChinaThe 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.https://www.mdpi.com/2073-4433/12/11/1398planetary boundary layer heights comparisonicebreaker cruises datasetChukchi and Beaufort Seas |
| spellingShingle | 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 Atmosphere planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas |
| title | 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_short | 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 |
| topic | planetary boundary layer heights comparison icebreaker cruises dataset Chukchi and Beaufort Seas |
| url | https://www.mdpi.com/2073-4433/12/11/1398 |
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