Annual variation of rainfall over Brazil and water vapor characteristics over South America | Zendy

Rao Vadlamudi Brahmananda | Zendy; Cavalcanti Iracema F. A. | Zendy; Hada Kioshi | Zendy

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Annual variation of rainfall over Brazil and water vapor characteristics over South America

Author(s) -

Rao Vadlamudi Brahmananda,

Cavalcanti Iracema F. A.,

Hada Kioshi

Publication year - 1996

Publication title -

journal of geophysical research: atmospheres

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/96jd01936

Subject(s) - environmental science , flux (metallurgy) , structural basin , moisture , amazon basin , amazon rainforest , water vapor , climatology , period (music) , atmospheric sciences , hydrology (agriculture) , geography , geology , meteorology , paleontology , ecology , materials science , physics , geotechnical engineering , acoustics , metallurgy , biology

A large region in central Brazil is characterized by summer rainfall and winter dry conditions. During the 6‐month period of September, October, November, December, January, and February (SONDJF) this region receives 70% or more of its annual rainfall. Calculations of vertically integrated water vapor flux and its divergence are made for South America. The results suggest that the Amazon basin is the principal source of moisture for central Brazil during the period SONDJF. Water vapor flux from the equatorial Atlantic associated with trade winds is the main moisture source for the Amazon basin.

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