Annual Variation of Midlatitude Precipitation

dc.contributor.author Chen, Tsing-Chang
dc.contributor.author Huang, Wan-Ru
dc.contributor.author Takle, Eugene
dc.contributor.author Takle, Eugene
dc.contributor.department Aerospace Engineering
dc.contributor.department Ames Laboratory
dc.contributor.department Agronomy
dc.contributor.department Geological and Atmospheric Sciences
dc.date 2018-02-18T14:56:24.000
dc.date.accessioned 2020-06-30T04:03:37Z
dc.date.available 2020-06-30T04:03:37Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2004
dc.date.issued 2004-11-01
dc.description.abstract <p>Annual variation of midlatitude precipitation and its maintenance through divergent water vapor flux were explored by the use of hydrological variables from three reanalyses [(NCEP–NCAR, ECMWF Re-Analysis (ERA), and Goddard Earth Observing System (GEOS-1)] and two global precipitation datasets [Climate Prediction Center (CPC) Merged Analysis of Precipitation (CMAP) and Global Precipitation Climatology Project (GPCP)]. Two annual variation patterns of midlatitude precipitation were identified: <ol> <li></p> <p>Tropical–midlatitude precipitation contrast: Midlatitude precipitation along storm tracks over the oceans attains its maximum in winter and its minimum in summer opposite to that over the tropical continents. </li> <li></p> <p>Land–ocean precipitation contrast: The annual precipitation variation between the oceans and the continent masses exhibits a pronounced seesaw. </li> </ol></p> <p>The annual variation of precipitation along storm tracks of both hemispheres follows that of the convergence of transient water vapor flux. On the other hand, the land–ocean precipitation contrast in the Northern Hemisphere midlatitudes is primarily maintained by the annual seesaw between the divergence of stationary water vapor flux over the western oceans and the convergence of this water vapor flux over the eastern oceans during winter. The pattern is reversed during the summer. This divergence–convergence exchange of stationary water vapor flux is coupled with the annual evolution of upper-level ridges over continents and troughs over the oceans.</p>
dc.description.comments <p>This article is published as Chen, Tsing-Chang, Wan-Ru Huang, and Eugene S. Takle. "Annual variation of midlatitude precipitation." <em>Journal of climate</em> 17, no. 21 (2004): 4291-4298. DOI:<a href="http://dx.doi.org/10.1175/JCLI3201.1" target="_blank">10.1175/JCLI3201.1</a>. Posted with permission.</p>
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dc.identifier archive/lib.dr.iastate.edu/ge_at_pubs/171/
dc.identifier.articleid 1180
dc.identifier.contextkey 10432708
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ge_at_pubs/171
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/38105
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ge_at_pubs/171/2004_Takle_AnnualVariation.pdf|||Fri Jan 14 21:16:09 UTC 2022
dc.source.uri 10.1175/JCLI3201.1
dc.subject.disciplines Atmospheric Sciences
dc.subject.disciplines Climate
dc.subject.disciplines Fresh Water Studies
dc.subject.disciplines Meteorology
dc.title Annual Variation of Midlatitude Precipitation
dc.type article
dc.type.genre article
dspace.entity.type Publication
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