Climatology of Surface-Based Inversions in the North American Arctic
The annual cycle of surface-based inversions at nine Arctic weather stations is examined, based on a 20-year set of daily 1200 UT significant level radiosonde data. All stations are at or near the coast. Inversions in winter months are primarily the result of strongly negative net radiation at the s...
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ftunivmassamh:oai:works.bepress.com:raymond_bradley-1075 2023-05-15T14:54:02+02:00 Climatology of Surface-Based Inversions in the North American Arctic Bradley, Raymond S Keimig, Frank T. 1992-10-20T07:00:00Z application/pdf https://works.bepress.com/raymond_bradley/38 https://works.bepress.com/cgi/viewcontent.cgi?article=1075&context=raymond_bradley unknown SelectedWorks https://works.bepress.com/raymond_bradley/38 https://works.bepress.com/cgi/viewcontent.cgi?article=1075&context=raymond_bradley Raymond S Bradley Earth Sciences text 1992 ftunivmassamh 2022-01-09T20:35:59Z The annual cycle of surface-based inversions at nine Arctic weather stations is examined, based on a 20-year set of daily 1200 UT significant level radiosonde data. All stations are at or near the coast. Inversions in winter months are primarily the result of strongly negative net radiation at the surface, whereas in summer, inversionsmore commonly result from near-surface cooling of warm air muses. Inversion frequency is at a maximum inwinter (generally >70% of days) when inversions range from -400 to -850 m in thickness. Inversion thickness and strength (temperature change across the inversion) are strongly related to surface temperature. Inversions may involve temperature changes of >30"C in (j"C 100 m,l during periods of eX1rerne warm air advection aloft. Midwinter inversions commonly persist for 2-4 days, but may remain undisturbed for several weeks, affecting lower tropospheric chemistry. Text Arctic University of Massachusetts: ScholarWorks@UMass Amherst Arctic Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) |
institution |
Open Polar |
collection |
University of Massachusetts: ScholarWorks@UMass Amherst |
op_collection_id |
ftunivmassamh |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Bradley, Raymond S Keimig, Frank T. Climatology of Surface-Based Inversions in the North American Arctic |
topic_facet |
Earth Sciences |
description |
The annual cycle of surface-based inversions at nine Arctic weather stations is examined, based on a 20-year set of daily 1200 UT significant level radiosonde data. All stations are at or near the coast. Inversions in winter months are primarily the result of strongly negative net radiation at the surface, whereas in summer, inversionsmore commonly result from near-surface cooling of warm air muses. Inversion frequency is at a maximum inwinter (generally >70% of days) when inversions range from -400 to -850 m in thickness. Inversion thickness and strength (temperature change across the inversion) are strongly related to surface temperature. Inversions may involve temperature changes of >30"C in (j"C 100 m,l during periods of eX1rerne warm air advection aloft. Midwinter inversions commonly persist for 2-4 days, but may remain undisturbed for several weeks, affecting lower tropospheric chemistry. |
format |
Text |
author |
Bradley, Raymond S Keimig, Frank T. |
author_facet |
Bradley, Raymond S Keimig, Frank T. |
author_sort |
Bradley, Raymond S |
title |
Climatology of Surface-Based Inversions in the North American Arctic |
title_short |
Climatology of Surface-Based Inversions in the North American Arctic |
title_full |
Climatology of Surface-Based Inversions in the North American Arctic |
title_fullStr |
Climatology of Surface-Based Inversions in the North American Arctic |
title_full_unstemmed |
Climatology of Surface-Based Inversions in the North American Arctic |
title_sort |
climatology of surface-based inversions in the north american arctic |
publisher |
SelectedWorks |
publishDate |
1992 |
url |
https://works.bepress.com/raymond_bradley/38 https://works.bepress.com/cgi/viewcontent.cgi?article=1075&context=raymond_bradley |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Arctic Midwinter |
geographic_facet |
Arctic Midwinter |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Raymond S Bradley |
op_relation |
https://works.bepress.com/raymond_bradley/38 https://works.bepress.com/cgi/viewcontent.cgi?article=1075&context=raymond_bradley |
_version_ |
1766325731073196032 |