Large-scale circulation and climate variability
1. The tropics have expanded poleward by about 70 to 200 miles in each hemisphere over the period 1979-2009, with an accompanying shift of the subtropical dry zones, midlatitude jets, and storm tracks (medium to high confidence). Human activities have played a role in this change (medium confidence)...
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ftunivnebraskali:oai:digitalcommons.unl.edu:usdeptcommercepub-1575 2023-11-12T04:22:09+01:00 Large-scale circulation and climate variability Perlwitz, Judith Knutson, Thomas Kossin, James 2017-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/usdeptcommercepub/588 https://digitalcommons.unl.edu/context/usdeptcommercepub/article/1575/viewcontent/CSSR_2017___05.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usdeptcommercepub/588 https://digitalcommons.unl.edu/context/usdeptcommercepub/article/1575/viewcontent/CSSR_2017___05.pdf Publications, Agencies and Staff of the U.S. Department of Commerce text 2017 ftunivnebraskali 2023-10-30T11:36:36Z 1. The tropics have expanded poleward by about 70 to 200 miles in each hemisphere over the period 1979-2009, with an accompanying shift of the subtropical dry zones, midlatitude jets, and storm tracks (medium to high confidence). Human activities have played a role in this change (medium confidence), although confidence is presently low regarding the magnitude of the human contribution relative to natural variability. 2. Recurring patterns of variability in large-scale atmospheric circulation (such as the North Atlantic Oscillation and Nordlem Annular Mode) and the atmosphere-ocean system (such as El Niño-Southern Oscillation) cause year-to-year variations in U.S. temperatures and precipitation (high confidence). Changes in the occurrence of these patterns or their properties have contributed to recent U.S. temperature and precipitation trends (medium confidence), although confidence is low regarding the size of the role of human activities in these changes. Text North Atlantic North Atlantic oscillation University of Nebraska-Lincoln: DigitalCommons@UNL |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
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ftunivnebraskali |
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description |
1. The tropics have expanded poleward by about 70 to 200 miles in each hemisphere over the period 1979-2009, with an accompanying shift of the subtropical dry zones, midlatitude jets, and storm tracks (medium to high confidence). Human activities have played a role in this change (medium confidence), although confidence is presently low regarding the magnitude of the human contribution relative to natural variability. 2. Recurring patterns of variability in large-scale atmospheric circulation (such as the North Atlantic Oscillation and Nordlem Annular Mode) and the atmosphere-ocean system (such as El Niño-Southern Oscillation) cause year-to-year variations in U.S. temperatures and precipitation (high confidence). Changes in the occurrence of these patterns or their properties have contributed to recent U.S. temperature and precipitation trends (medium confidence), although confidence is low regarding the size of the role of human activities in these changes. |
format |
Text |
author |
Perlwitz, Judith Knutson, Thomas Kossin, James |
spellingShingle |
Perlwitz, Judith Knutson, Thomas Kossin, James Large-scale circulation and climate variability |
author_facet |
Perlwitz, Judith Knutson, Thomas Kossin, James |
author_sort |
Perlwitz, Judith |
title |
Large-scale circulation and climate variability |
title_short |
Large-scale circulation and climate variability |
title_full |
Large-scale circulation and climate variability |
title_fullStr |
Large-scale circulation and climate variability |
title_full_unstemmed |
Large-scale circulation and climate variability |
title_sort |
large-scale circulation and climate variability |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2017 |
url |
https://digitalcommons.unl.edu/usdeptcommercepub/588 https://digitalcommons.unl.edu/context/usdeptcommercepub/article/1575/viewcontent/CSSR_2017___05.pdf |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Publications, Agencies and Staff of the U.S. Department of Commerce |
op_relation |
https://digitalcommons.unl.edu/usdeptcommercepub/588 https://digitalcommons.unl.edu/context/usdeptcommercepub/article/1575/viewcontent/CSSR_2017___05.pdf |
_version_ |
1782337297962762240 |