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Agreste

From Wikipedia, the free encyclopedia
Agreste
Pedra do Cordeiro in the Agreste
Pedra do Cordeiro in the Agreste
The Subregions of Northeast Brazil 1 • Meio-norte, 2 • Sertão, 3 • Agreste, 4 • Zona da Mata
The Subregions of Northeast Brazil
1 Meio-norte, 2 Sertão, 3 Agreste, 4 Zona da Mata
CountryBrazil

The agreste (Portuguese pronunciation: [aˈɡɾɛstʃi], "countryside") is a narrow zone of Brazil in the states of Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe and Bahia between the coastal forest zona da mata and the semiarid sertão. The agreste fades out after it reaches Rio Grande do Norte due to the break of the mountain-chain that blocks air currents from the Atlantic ocean. This barrier is what induces high rainfalls in the coastal Atlantic forest zone.

Most of the agreste is hilly, its hills becoming higher at south, except near the narrow valley of São Francisco River. This land is mostly used for mixed farming, prevailing fruits, of which melons have especial importance. Like the sertão, the agreste is frequently affected by drought, though generally with less severe effects. Only some highland regions mostly in Pernambuco, where cities like Garanhuns and Triunfo are located, are able to reach temperatures below 10 degrees Celsius for a part of the year, usually coinciding with the south-American winter.

Climate

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The climate is hot and sub-humid, with rainfall in the area's principal city of Campina Grande averaging about 700 millimetres per year - ranging from less than 10 millimetres in October and November to about 120 millimetres in May and June.

Campina Grande
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
27
 
 
30
20
 
 
41
 
 
30
20
 
 
74
 
 
28
20
 
 
94
 
 
28
20
 
 
118
 
 
27
18
 
 
119
 
 
26
18
 
 
84
 
 
25
18
 
 
59
 
 
24
18
 
 
24
 
 
27
18
 
 
13
 
 
28
19
 
 
16
 
 
29
20
 
 
19
 
 
30
20
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [1]
Imperial conversion
JFMAMJJASOND
 
 
1.1
 
 
86
68
 
 
1.6
 
 
86
68
 
 
2.9
 
 
82
68
 
 
3.7
 
 
82
68
 
 
4.6
 
 
81
64
 
 
4.7
 
 
79
64
 
 
3.3
 
 
77
64
 
 
2.3
 
 
75
64
 
 
0.9
 
 
81
64
 
 
0.5
 
 
82
66
 
 
0.6
 
 
84
68
 
 
0.7
 
 
86
68
Average max. and min. temperatures in °F
Precipitation totals in inches
Guarabira
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
41
 
 
32
22
 
 
63
 
 
33
22
 
 
98
 
 
33
22
 
 
122
 
 
31
21
 
 
151
 
 
30
21
 
 
202
 
 
29
20
 
 
88
 
 
29
19
 
 
56
 
 
29
19
 
 
22
 
 
30
20
 
 
12
 
 
31
21
 
 
20
 
 
32
22
 
 
45
 
 
32
22
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: [2]
Imperial conversion
JFMAMJJASOND
 
 
1.6
 
 
90
72
 
 
2.5
 
 
91
72
 
 
3.9
 
 
91
72
 
 
4.8
 
 
88
70
 
 
5.9
 
 
86
70
 
 
8
 
 
84
68
 
 
3.5
 
 
84
66
 
 
2.2
 
 
84
66
 
 
0.9
 
 
86
68
 
 
0.5
 
 
88
70
 
 
0.8
 
 
90
72
 
 
1.8
 
 
90
72
Average max. and min. temperatures in °F
Precipitation totals in inches

See also

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References

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  1. ^ Wernstadt, Frederick L. ; World Climatic Data; published 1972 by Climatic Data Press; p. 99.
  2. ^ Wernstadt, Frederick L. ; World Climatic Data; published 1972 by Climatic Data Press; p. 100.

Nonfiction

  • Michael H. Glantz; Currents of Change : El Niño's Impact on Climate and Society; published 1996 by Cambridge University Press. ISBN 0-521-57659-8
  • Michael H. Glantz (editor); Drought Follows The Plow: Cultivating Marginal Areas; published 1994 by Cambridge University Press. ISBN 0-521-44252-4
  • Fagan, Brian; Floods, Famines, and Emperors: El Niño and the Fate of Civilizations; published 2000 by Basic Books. ISBN 0-465-01121-7
  • Nicholas G. Arons; Waiting for Rain: The Politics and Poetry of Drought in Northeast Brazil; published 2004 by University of Arizona Press. ISBN 0-8165-2433-5
  • Euclides da Cunha, Rebellion in the Backlands

Fiction