3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere
Decadal trends are compared in various fields between Northern Hemisphere early winter, November– December (ND), and late-winter, February–March (FM), months using reanalysis data. It is found that in the extratropics and polar region the decadal trends display nearly opposite tendencies between ND...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.79.7655 2023-05-15T15:05:05+02:00 3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere Yongyun Hu Ka Kit Tung The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.7655 http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.7655 http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf text 2004 ftciteseerx 2016-01-08T19:15:07Z Decadal trends are compared in various fields between Northern Hemisphere early winter, November– December (ND), and late-winter, February–March (FM), months using reanalysis data. It is found that in the extratropics and polar region the decadal trends display nearly opposite tendencies between ND and FM during the period from 1979 to 2003. Dynamical trends in late winter (FM) reveal that the polar vortex has become stronger and much colder and wave fluxes from the troposphere to the stratosphere are weaker, consistent with the positive trend of the Arctic Oscillation (AO) as found in earlier studies, while trends in ND appear to resemble a trend toward the low-index polarity of the AO. In the Tropics, the Hadley circulation shows significant intensification in both ND and FM, with stronger intensification in FM. Unlike the Hadley cell, the Ferrel cell shows opposite trends between ND and FM, with weakening in ND and strengthening in FM. Comparison of the observational results with general circulation model simulations is also discussed. 1. Text Arctic Unknown Arctic |
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English |
description |
Decadal trends are compared in various fields between Northern Hemisphere early winter, November– December (ND), and late-winter, February–March (FM), months using reanalysis data. It is found that in the extratropics and polar region the decadal trends display nearly opposite tendencies between ND and FM during the period from 1979 to 2003. Dynamical trends in late winter (FM) reveal that the polar vortex has become stronger and much colder and wave fluxes from the troposphere to the stratosphere are weaker, consistent with the positive trend of the Arctic Oscillation (AO) as found in earlier studies, while trends in ND appear to resemble a trend toward the low-index polarity of the AO. In the Tropics, the Hadley circulation shows significant intensification in both ND and FM, with stronger intensification in FM. Unlike the Hadley cell, the Ferrel cell shows opposite trends between ND and FM, with weakening in ND and strengthening in FM. Comparison of the observational results with general circulation model simulations is also discussed. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Yongyun Hu Ka Kit Tung |
spellingShingle |
Yongyun Hu Ka Kit Tung 3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
author_facet |
Yongyun Hu Ka Kit Tung |
author_sort |
Yongyun Hu |
title |
3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
title_short |
3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
title_full |
3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
title_fullStr |
3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
title_full_unstemmed |
3204 JOURNAL OF CLIMATE VOLUME 18 A Closer Comparison of Early and Late-Winter Atmospheric Trends in the Northern Hemisphere |
title_sort |
3204 journal of climate volume 18 a closer comparison of early and late-winter atmospheric trends in the northern hemisphere |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.7655 http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.79.7655 http://www.amath.washington.edu/research/articles/Tung/journals/Hu-et-al05.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766336845202849792 |