Question

write short note on drought quadrilateral​

Answer 1

drought quadrilateral➡Sometimes, the Northeast area of Brazil is also known as the drier region or the Drought Quadrilateral Region. Except the Northeast region of the Brazil, other regions of the country has a humid tropical and subtropical climate.

Much of the Brazil receives 1000-1800 mm of precipitation in a year but the drought Polygon area receives only 375-750 mm of precipitation.

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Answer 2

Hi here is ur answer...

Drought Region (Brazil)

Drought Region (Brazil), area encompassing most of eight states in Northeast Brazil; defined politically as the polígono das sêcas or drought polygon. Historically the designation has had more to do with social structure, politics, and psychology than with climate; generations of Brazilians have been conditioned through political debate, essays, novels, songs, and films to define the Northeast interior and its social problems in terms of drought. Meteorologically, the droughts are produced by Caribbean and South Atlantic weather systems, the instability of which can cause wide variations in seasonal rainfall. However, the human effects of these poorly understood natural phenomena derive historically from the social and political structure of the region.

The droughts entered the historical record in 1584, when Friar Fernão Cardim reported that over four thousand indigenes had fled from the interior to the Pernambucan coast because of a drought.

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