Airmass Origin in the Arctic. Part I: Seasonality ...
The first climatology of airmass origin in the Arctic is presented in terms of rigorously defined airmass fractions that partition air according to where it last contacted the planetary boundary layer (PBL). Results from a present-day climate integration of the Goddard Earth Observing System Chemist...
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ftdatacite:10.13016/m243u1-ntdf 2023-08-27T04:07:20+02:00 Airmass Origin in the Arctic. Part I: Seasonality ... ORBE, CLARA NEWMAN, PAUL A. WAUGH, DARRYN W. HOLZER, MARK OMAN, LUKE D. LI, FENG POLVANI, LORENZO M. 2015 https://dx.doi.org/10.13016/m243u1-ntdf https://mdsoar.org/handle/11603/26728 unknown AMS Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ CreativeWork article 2015 ftdatacite https://doi.org/10.13016/m243u1-ntdf 2023-08-07T14:24:23Z The first climatology of airmass origin in the Arctic is presented in terms of rigorously defined airmass fractions that partition air according to where it last contacted the planetary boundary layer (PBL). Results from a present-day climate integration of the Goddard Earth Observing System Chemistry–Climate Model (GEOSCCM) reveal that the majority of air in the Arctic below 700 mb last contacted the PBL poleward of 608N. By comparison, 62% (±0.8%) of the air above 700 mb originates over Northern Hemisphere midlatitudes (i.e., ‘‘midlatitude air’’). Seasonal variations in the airmass fractions above 700 mb reveal that during boreal winter air from midlatitudes originates primarily over the oceans, with 26% (±1.9%) last contacting the PBL over the eastern Pacific, 21% (±0.87%) over the Atlantic, and 16% (±1.2%) over the western Pacific. During summer, by comparison, midlatitude air originates primarily over land, overwhelmingly so over Asia [41% (±1.0%)] and, to a lesser extent, over North America [24% ... Article in Journal/Newspaper Arctic DataCite Metadata Store (German National Library of Science and Technology) Arctic Pacific |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
The first climatology of airmass origin in the Arctic is presented in terms of rigorously defined airmass fractions that partition air according to where it last contacted the planetary boundary layer (PBL). Results from a present-day climate integration of the Goddard Earth Observing System Chemistry–Climate Model (GEOSCCM) reveal that the majority of air in the Arctic below 700 mb last contacted the PBL poleward of 608N. By comparison, 62% (±0.8%) of the air above 700 mb originates over Northern Hemisphere midlatitudes (i.e., ‘‘midlatitude air’’). Seasonal variations in the airmass fractions above 700 mb reveal that during boreal winter air from midlatitudes originates primarily over the oceans, with 26% (±1.9%) last contacting the PBL over the eastern Pacific, 21% (±0.87%) over the Atlantic, and 16% (±1.2%) over the western Pacific. During summer, by comparison, midlatitude air originates primarily over land, overwhelmingly so over Asia [41% (±1.0%)] and, to a lesser extent, over North America [24% ... |
format |
Article in Journal/Newspaper |
author |
ORBE, CLARA NEWMAN, PAUL A. WAUGH, DARRYN W. HOLZER, MARK OMAN, LUKE D. LI, FENG POLVANI, LORENZO M. |
spellingShingle |
ORBE, CLARA NEWMAN, PAUL A. WAUGH, DARRYN W. HOLZER, MARK OMAN, LUKE D. LI, FENG POLVANI, LORENZO M. Airmass Origin in the Arctic. Part I: Seasonality ... |
author_facet |
ORBE, CLARA NEWMAN, PAUL A. WAUGH, DARRYN W. HOLZER, MARK OMAN, LUKE D. LI, FENG POLVANI, LORENZO M. |
author_sort |
ORBE, CLARA |
title |
Airmass Origin in the Arctic. Part I: Seasonality ... |
title_short |
Airmass Origin in the Arctic. Part I: Seasonality ... |
title_full |
Airmass Origin in the Arctic. Part I: Seasonality ... |
title_fullStr |
Airmass Origin in the Arctic. Part I: Seasonality ... |
title_full_unstemmed |
Airmass Origin in the Arctic. Part I: Seasonality ... |
title_sort |
airmass origin in the arctic. part i: seasonality ... |
publisher |
AMS |
publishDate |
2015 |
url |
https://dx.doi.org/10.13016/m243u1-ntdf https://mdsoar.org/handle/11603/26728 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic |
genre_facet |
Arctic |
op_rights |
Public Domain Mark 1.0 This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. http://creativecommons.org/publicdomain/mark/1.0/ |
op_doi |
https://doi.org/10.13016/m243u1-ntdf |
_version_ |
1775348114882822144 |