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Double intertropical convergence zones over the eastern Pacific Ocean: Contrasting impacts of the eastern Pacific- and central Pacific-type El Ninos
Yan, Li; Li, Gen1
2018
Source PublicationATMOSPHERIC SCIENCE LETTERS
ISSN1530-261X
Volume19Issue:10Pages:UNSP e852
AbstractA double intertropical convergence zone (ITCZ) with poor equatorial rainfall over the eastern Pacific Ocean distinctively occurs in March-April. Here we find that double ITCZs and equatorial precipitation are strongly linked to meridionally symmetric (or asymmetric) sea surface temperature (SST) anomaly patterns during eastern Pacific (EP)-type (or central Pacific [CP]-type) El Nino episodes. EP-type El Nino weakens the north-south asymmetry of the eastern Pacific double ITCZs by moving them equatorward. In contrast, CP-type El Nino strengthens the north-south asymmetry of the double ITCZs by strengthening the northern ITCZ and weakening the southern ITCZ. While EP-type El Nino brings unique flourishing Galapagos Islands owing to warm equatorial SST anomalies with major local and remote climate effects, CP-type El Nino causes drier Galapagos Islands by decreasing equatorial eastern Pacific SST. This study highlights the distinctly different climate effects of EP- and CP-type El Ninos in the region.
DepartmentLTO
KeywordCP-type El Nino double ITCZs EP-type El Nino equatorial rainfall north-south asymmetry
DOI10.1002/asl.852
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17566
Collection热带海洋环境国家重点实验室(LTO)
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Hohai Univ, Coll Oceanog, Nanjing, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Yan, Li,Li, Gen. Double intertropical convergence zones over the eastern Pacific Ocean: Contrasting impacts of the eastern Pacific- and central Pacific-type El Ninos[J]. ATMOSPHERIC SCIENCE LETTERS,2018,19(10):UNSP e852.
APA Yan, Li,&Li, Gen.(2018).Double intertropical convergence zones over the eastern Pacific Ocean: Contrasting impacts of the eastern Pacific- and central Pacific-type El Ninos.ATMOSPHERIC SCIENCE LETTERS,19(10),UNSP e852.
MLA Yan, Li,et al."Double intertropical convergence zones over the eastern Pacific Ocean: Contrasting impacts of the eastern Pacific- and central Pacific-type El Ninos".ATMOSPHERIC SCIENCE LETTERS 19.10(2018):UNSP e852.
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