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An Analysis of the Energetics of Tropical and Extra-Tropical Regions under Cold ENSO Compose Episodes


The purpose of this studywas to quantify and evaluate the effects of ENSO (El Nino Southern Oscillation)cold phases, throughout a composite of five intense La Nina episodes, on theatmospheric energetics of four distinct domains:80°S - 5,N (zone 1), 50,S - 5,N (zone 2), 30,S - 5,N (zone 3), and 30,S - 30,N (zone 4). Data from NCEP reanalysis-II wereused in the reckoning of atmospheric energies in the ,mentioned areas. In thesynthesis, in zones 2, 3 and 4, theresults showed that production of zonal terms of potential energy andkinetic energy decreased, mainly dueto decreases of the meridional temperature gradient. As a result theconversions between them and between zonal kinetic energy and eddy kineticenergy were also reduced. This behavior, however, has not led to a significantintensification of baroclinic branch, except for zone 4. Regarding zone 1, itwas observed the most atypical set. That is, KZ was intensified even with thereduction of all the sources that contribute directly to it......

【作者名称】: Zayra C. Sátyro, José A. P. Veiga
【关 键 词】: Atmospheric Energetics, Lorenz Energy Cycle, ENSO, La Nina, Open Access Library
【网站名称】: OALIB数据库
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 103,633,821
【摘要长度】: 1,000
【栏目名称】: 所有文件
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