Cold surge episodes over southeastern Brazil - a potential vorticity perspective
نویسندگان
چکیده
منابع مشابه
Lightning Activity over Large Urban Areas of the Southeastern Brazil
This paper presents the preliminary results from CG lightning characteristics analysis over three large urban areas in southeastern Brazil: the São Paulo metropolitan area, Vale do Paraíba Paulista and the Campinas metropolitan area. A lightning dataset of about 310,000 flashes was obtained by the Brazilian lightning detection network during the months of December, January and February from 199...
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*Correspondence: Víctor Magaña, Circuito de la Investigación Cientifica, Instituto de Geografía, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Coyoacan, Mexico City 04510, Mexico e-mail: [email protected] Cold surges are a dominant feature of midlatitude tropical interaction. During the North Hemisphere (NH) winter, midlatitude waves propagating from the Rocky Mountains into th...
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LTEX source, defined here to print as italic. Possible cross-references to other articles are flagged \crossref{...}. For visibility, \crossref{...} is temporarily defined to print as sans-serif. Therefore, sans-serif italic signals both a new term and a possible cross-reference. I have used \openingscarequote...\closingscarequote in a few places. This bends the house-style rules, but unfortuna...
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[1] The motion of mid-latitude surface cyclones relative to the jet streams is of particular interest because of the commonly observed strong and rapid deepening they undergo when they cross the upper-level jet axis. The purpose of the present study is to validate a recent theory that may explain this motion which is a generalization of the so-called beta drift in the mid-latitude baroclinic co...
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The evolution of the two components of the equatorial mountain torque (EMT) applied by mountains on the atmosphere is analyzed in the NCEP reanalysis. A strong lagged relationship between the EMT component along the Greenwich axis TM1 and the EMT component along the 908E axis TM2 is found, with a pronounced signal on TM1 followed by a signal of opposite sign on TM2. It is shown that this result...
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ژورنال
عنوان ژورنال: International Journal of Climatology
سال: 2012
ISSN: 0899-8418
DOI: 10.1002/joc.3618