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Previous studies have shown that the width of the tropical belt has been increasing since at least the late 1970s based on a variety of metrics. One such metric, the frequency of occurrence of a high-altitude tropopause characteristic of the tropics, is used here to show that the observed widening o...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.384.2557 2023-05-15T18:17:32+02:00 Corresponding author: Jian Lu Clara Deser Thomas Reichler The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.384.2557 http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.384.2557 http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf text ftciteseerx 2016-09-18T00:29:36Z Previous studies have shown that the width of the tropical belt has been increasing since at least the late 1970s based on a variety of metrics. One such metric, the frequency of occurrence of a high-altitude tropopause characteristic of the tropics, is used here to show that the observed widening of the tropics can be accurately replicated by an atmospheric general circulation model forced by the observed evolution of global SST and sea ice distributions as well as the direct radiative effects from both natural and anthropogenic sources. Contrasting this simulation with one forced by the observed SST and sea ice distributions alone reveals that the widening trend can be attributed entirely to direct radiative forcing, in particular those related to greenhouse gases and stratospheric ozone depletion. SST forcing causes no significant change in the width of the tropics, and even a contraction in some seasons. 36 37 Text Sea ice Unknown |
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Previous studies have shown that the width of the tropical belt has been increasing since at least the late 1970s based on a variety of metrics. One such metric, the frequency of occurrence of a high-altitude tropopause characteristic of the tropics, is used here to show that the observed widening of the tropics can be accurately replicated by an atmospheric general circulation model forced by the observed evolution of global SST and sea ice distributions as well as the direct radiative effects from both natural and anthropogenic sources. Contrasting this simulation with one forced by the observed SST and sea ice distributions alone reveals that the widening trend can be attributed entirely to direct radiative forcing, in particular those related to greenhouse gases and stratospheric ozone depletion. SST forcing causes no significant change in the width of the tropics, and even a contraction in some seasons. 36 37 |
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The Pennsylvania State University CiteSeerX Archives |
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Jian Lu Clara Deser Thomas Reichler |
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Jian Lu Clara Deser Thomas Reichler Corresponding author: |
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Jian Lu Clara Deser Thomas Reichler |
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Jian Lu |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.384.2557 http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf |
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http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.384.2557 http://www.cgd.ucar.edu/cas/cdeser/Docs/LuDeserReichler.pdf |
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