Relationship between the rainfall of the eastern Northeast of Brazil and the ocean temperature

Revista Brasileira de Engenharia Agrícola e Ambiental

Giongo, Pedro R.²  Melo, José S. P. de²  Moura, Geber B. de A.²  Lacerda, Francinete F.³  Silva, Ana P. N. da⁴  Aragão, José O. R. de¹ 

[1] UFPE, Recife;UFRPE, Recife;ITEP, Recife;UFCG, Campina Grande

关键词: ITCZ;    Walker;    atlantic dipole;    ENSO    INTRODUÇÃO O avanço tecnológico tem contribuído de forma significativa na concepção de equipamentos sofisticados capazes de registrar medidas precisas de variáveis oceânicas e atmosféricas nos oceanos tropicais;    principalmente após os primeiros anos da década de 1980;    quando se descobriu o importante papel físico dos oceanos tropicais sobre a atmosfera terrestre;    Alves et al;   

DOI  :  10.1590/S1415-43662009000400014

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The objective of this work was to correlate the Northeast of Brazil (NEB) rainfall grouped in one homogeneous cluster with the global sea surface temperature (SST) anomalies. The data covered the period from 1945 to 1985 and the analyses shows that there are influences from the Atlantic and Pacific ocean over the eastern NEB's rainfall, with a higher correlation for the Atlantic, especially in the Dipole area (correlation values greater than 0.6, and p < 0.05). The 1995 Servain and Arnault meridional (Atlantic Dipole) and equatorial modes were detected during several lag analyses. In the Eastern Tropical Pacific Ocean in the region of El Niño-3 negative correlations were found, indicating the presence of the descendant branches of the Walker cell in the sector east of the NEB.

【 授权许可】

CC BY-NC