United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability
Recent studies point to a significant rise in the number of summer extreme weather events that correspond with the presence of amplified, quasistationary midtropospheric planetary waves, weakened atmospheric circulation in the Northern Hemisphere, and coincide with reduced summer Arctic sea ice cove...
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fttexasstate:oai:digital.library.txstate.edu:10877/14513 2023-08-20T04:02:57+02:00 United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability Budikova, Dagmar Ford, Trent W. Ballinger, Thomas J. 2021-09-20T17:33:44Z Text 18 pages 1 file (.pdf) application/pdf https://digital.library.txstate.edu/handle/10877/14513 https://doi.org/10.1029/2018JD029365 en eng American Geophysical Union Budikova, D., Ford, T. W., & Ballinger, T. J. (2019). United States heat wave frequency and Arctic Ocean marginal sea ice variability. Journal of Geophysical Research: Atmospheres, 124(12), pp. 6247-6264. https://digital.library.txstate.edu/handle/10877/14513 https://doi.org/10.1029/2018JD029365 © 2019 American Geophysical Union. Journal of Geophysical Research: Atmospheres, 2019, Vol. 124, No. 12, pp. 6247-6264. arctic climate change and variability extreme events North America sea ice Geography and Environmental Studies publishedVersion 2021 fttexasstate https://doi.org/10.1029/2018JD029365 2023-07-29T22:05:50Z Recent studies point to a significant rise in the number of summer extreme weather events that correspond with the presence of amplified, quasistationary midtropospheric planetary waves, weakened atmospheric circulation in the Northern Hemisphere, and coincide with reduced summer Arctic sea ice cover. This study explores potential connections between 1979 and 2016 summer heat wave frequency across the USA and regional Arctic sea ice extent (SIE) in various Arctic basins. Most notable SIE interannual relationships exist across the southern Plains and southeastern US during low Hudson Bay summer SIE. Locally increased frequencies of summer heat waves coincide with unseasonably warm conditions developed and sustained by the presence of an omega blocking pattern situated over the southern US throughout summer. The block appears following anomalous atmospheric warming and reduced mean zonal winds observed throughout spring (March–May) over northeastern Canada, the northwestern Atlantic basin, and Greenland. Spring preconditioning of summer ice melt is favored by the presence of strong negative phase of the North Atlantic Oscillation and positive Greenland Blocking Index. Summer synoptic flow related to Hudson Bay ice melt over North America appears to be influenced by the background state of atmospheric variability, namely, the positive phase of the Atlantic Multidecadal Oscillation. Antecedent local humidity, soil moisture, and precipitation conditions are shown to influence the “flavor” of the heat waves, which are more likely to be oppressive in the southeastern US and extreme across the southern Plains during summers experiencing low Hudson SIE. Geography Other/Unknown Material Arctic Arctic Arctic Ocean Climate change Greenland Hudson Bay North Atlantic North Atlantic oscillation Sea ice Texas State University: Digital Collections Repository Arctic Arctic Ocean Hudson Bay Canada Greenland Hudson Journal of Geophysical Research: Atmospheres 124 12 6247 6264 |
institution |
Open Polar |
collection |
Texas State University: Digital Collections Repository |
op_collection_id |
fttexasstate |
language |
English |
topic |
arctic climate change and variability extreme events North America sea ice Geography and Environmental Studies |
spellingShingle |
arctic climate change and variability extreme events North America sea ice Geography and Environmental Studies Budikova, Dagmar Ford, Trent W. Ballinger, Thomas J. United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
topic_facet |
arctic climate change and variability extreme events North America sea ice Geography and Environmental Studies |
description |
Recent studies point to a significant rise in the number of summer extreme weather events that correspond with the presence of amplified, quasistationary midtropospheric planetary waves, weakened atmospheric circulation in the Northern Hemisphere, and coincide with reduced summer Arctic sea ice cover. This study explores potential connections between 1979 and 2016 summer heat wave frequency across the USA and regional Arctic sea ice extent (SIE) in various Arctic basins. Most notable SIE interannual relationships exist across the southern Plains and southeastern US during low Hudson Bay summer SIE. Locally increased frequencies of summer heat waves coincide with unseasonably warm conditions developed and sustained by the presence of an omega blocking pattern situated over the southern US throughout summer. The block appears following anomalous atmospheric warming and reduced mean zonal winds observed throughout spring (March–May) over northeastern Canada, the northwestern Atlantic basin, and Greenland. Spring preconditioning of summer ice melt is favored by the presence of strong negative phase of the North Atlantic Oscillation and positive Greenland Blocking Index. Summer synoptic flow related to Hudson Bay ice melt over North America appears to be influenced by the background state of atmospheric variability, namely, the positive phase of the Atlantic Multidecadal Oscillation. Antecedent local humidity, soil moisture, and precipitation conditions are shown to influence the “flavor” of the heat waves, which are more likely to be oppressive in the southeastern US and extreme across the southern Plains during summers experiencing low Hudson SIE. Geography |
format |
Other/Unknown Material |
author |
Budikova, Dagmar Ford, Trent W. Ballinger, Thomas J. |
author_facet |
Budikova, Dagmar Ford, Trent W. Ballinger, Thomas J. |
author_sort |
Budikova, Dagmar |
title |
United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
title_short |
United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
title_full |
United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
title_fullStr |
United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
title_full_unstemmed |
United States Heat Wave Frequency and Arctic Ocean Marginal Sea Ice Variability |
title_sort |
united states heat wave frequency and arctic ocean marginal sea ice variability |
publisher |
American Geophysical Union |
publishDate |
2021 |
url |
https://digital.library.txstate.edu/handle/10877/14513 https://doi.org/10.1029/2018JD029365 |
geographic |
Arctic Arctic Ocean Hudson Bay Canada Greenland Hudson |
geographic_facet |
Arctic Arctic Ocean Hudson Bay Canada Greenland Hudson |
genre |
Arctic Arctic Arctic Ocean Climate change Greenland Hudson Bay North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Climate change Greenland Hudson Bay North Atlantic North Atlantic oscillation Sea ice |
op_source |
Journal of Geophysical Research: Atmospheres, 2019, Vol. 124, No. 12, pp. 6247-6264. |
op_relation |
Budikova, D., Ford, T. W., & Ballinger, T. J. (2019). United States heat wave frequency and Arctic Ocean marginal sea ice variability. Journal of Geophysical Research: Atmospheres, 124(12), pp. 6247-6264. https://digital.library.txstate.edu/handle/10877/14513 https://doi.org/10.1029/2018JD029365 |
op_rights |
© 2019 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2018JD029365 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
124 |
container_issue |
12 |
container_start_page |
6247 |
op_container_end_page |
6264 |
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1774713468979511296 |