Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data
Abstract. The seasonal cycle of water vapor in the lower stratosphere is studied based on Halogen Occultation Experiment (HALOE) satellite observations spanning 1991-2000. The seasonal cycle highlights fast, quasi-horizontal transport between tropics and midlatitudes in the lowermost stratosphere (n...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.545.482 2023-05-15T15:05:11+02:00 Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data William J. R Fei Wu Andrew Gettelman J. M. Russell Iii Joseph M. Zawodny Samuel J. Oltmans The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.482 http://acd.ucar.edu/~randel/2001JD900048.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.482 http://acd.ucar.edu/~randel/2001JD900048.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://acd.ucar.edu/~randel/2001JD900048.pdf text ftciteseerx 2016-01-08T11:16:00Z Abstract. The seasonal cycle of water vapor in the lower stratosphere is studied based on Halogen Occultation Experiment (HALOE) satellite observations spanning 1991-2000. The seasonal cycle highlights fast, quasi-horizontal transport between tropics and midlatitudes in the lowermost stratosphere (near isentropic levels-380-420 K), in addition to vertical propagation above the equator (the tropical "tape recorder"). The rapid isentropic transport out of the tropics produces a layer of relatively dry air over most of the globe throughout he year, and the seasonal cycle in midlatitudes of both hemispheres (and over the Arctic pole) follows that in the tropics. Additionally, the Northern Hemisphere summer monsoon has a dominant influence on hemispheric-scale constituent ransport. Longitudinal structures in tropical water vapor and ozone identify regions of strong coupling to the troposphere; an intriguing result is that the solstice minima in water vapor and ozone are spatial separated from maximum convection and coldest tropical temperatures. Detailed comparisons with tropical aircraft measurements and the long record of balloon data from Boulder, Colorado, demonstrate the overall high quality of HALOE water vapor data. 1. Text Arctic Unknown Arctic |
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description |
Abstract. The seasonal cycle of water vapor in the lower stratosphere is studied based on Halogen Occultation Experiment (HALOE) satellite observations spanning 1991-2000. The seasonal cycle highlights fast, quasi-horizontal transport between tropics and midlatitudes in the lowermost stratosphere (near isentropic levels-380-420 K), in addition to vertical propagation above the equator (the tropical "tape recorder"). The rapid isentropic transport out of the tropics produces a layer of relatively dry air over most of the globe throughout he year, and the seasonal cycle in midlatitudes of both hemispheres (and over the Arctic pole) follows that in the tropics. Additionally, the Northern Hemisphere summer monsoon has a dominant influence on hemispheric-scale constituent ransport. Longitudinal structures in tropical water vapor and ozone identify regions of strong coupling to the troposphere; an intriguing result is that the solstice minima in water vapor and ozone are spatial separated from maximum convection and coldest tropical temperatures. Detailed comparisons with tropical aircraft measurements and the long record of balloon data from Boulder, Colorado, demonstrate the overall high quality of HALOE water vapor data. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
William J. R Fei Wu Andrew Gettelman J. M. Russell Iii Joseph M. Zawodny Samuel J. Oltmans |
spellingShingle |
William J. R Fei Wu Andrew Gettelman J. M. Russell Iii Joseph M. Zawodny Samuel J. Oltmans Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
author_facet |
William J. R Fei Wu Andrew Gettelman J. M. Russell Iii Joseph M. Zawodny Samuel J. Oltmans |
author_sort |
William J. R |
title |
Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
title_short |
Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
title_full |
Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
title_fullStr |
Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
title_full_unstemmed |
Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data |
title_sort |
seasonal variation of water vapor in the lower stratosphere observed in halogen occultation experiment data |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.482 http://acd.ucar.edu/~randel/2001JD900048.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://acd.ucar.edu/~randel/2001JD900048.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.482 http://acd.ucar.edu/~randel/2001JD900048.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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1766336926703419392 |