On climate variability in Northeast of Brazil

被引：175

作者：

da Silva, VDR ^{[1
]}

机构：

[1] Univ Fed Campina Grande, Dept Atmospher Sci, BR-109970 Campina Grande, Brazil

来源：

JOURNAL OF ARID ENVIRONMENTS | 2004年 / 58卷 / 04期

关键词：

reference evapo-transpiration; class A pan evaporation; rainfall; air temperature; relative humidity; aridity index; trend;

D O I：

10.1016/j.jaridenv.2003.12.002

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The time-series (annual period and dry- and wet-season) of eight climatic variables were analysed to ascertain the existence of climate variability in Northeast of Brazil. Results indicated generally increasing trends in most of these variables (statistically significant at p<0.01 or <0.05) by Mann-Kendall test. However, relative humidity and rainfall presented decreasing behavior. The study showed that most of the stations studied are going through a process of environmental dryness. The results also suggest that the historical trends may be related to climate variability in Northeast of Brazil, which affects both semi-arid and coastal part of the region. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：575 / 596

页数：22

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