文献类型：期刊文献

英文题名：Contrasting impacts of three extreme el ni?os on double itczs over the eastern pacific ocean

作者：Chen, Yinlan[1,2]; Yan, Li[1,2]; Li, Gen[3]; Xu, Jianjun[1,2]; Long, Jingchao[1,2]; Zheng, Shaojun[1,2]

机构：[1] South China Sea Institute of Marine and Meteorology, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, 524088, China; [2] Southern Marine Science and Engineering Guangdong Laboratory, Marine Resources Big Data Center of South China Sea, Zhanjiang, 524000, China; [3] Key Laboratory of Marine Hazards Forecasting Ministry of Natural Resources, College of Oceanography Hohai University, Nanjing, 210098, China

年份：2021

卷号：12

期号：4

外文期刊名：Atmosphere

收录：EI(收录号：20211510208086)、Scopus(收录号：2-s2.0-85103899343)

语种：英文

外文关键词：Oceanography - Surface waters

外文摘要：In the recent four decades, there were three record-breaking El Ni?o events: 1982/1983, 1997/1998, and 2015/2016 events. A double intertropical convergence zone (ITCZ) pattern distinctively emerges over the eastern Pacific Ocean during boreal spring. Based on reanalysis (ERA-Interim) during 1979-2018, this study examines how these three extreme El Ni?os modulate such double ITCZs. The 1982/1983 and 1997/1998 El Ni?os moved both northern and southern ITCZs equatorward to form an individual and broad equatorial ITCZ. In contrast, the regulation of 2015/2016 El Ni?o was unique with a strengthened southern ITCZ to form a symmetric double-ITCZ. The above differences can be attributed to the different meridional structures of sea surface temperatures (SSTs). For the 1982/1983 and 1997/1998 El Ni?os, there was a meridionally symmetric structure of SST warming with a maximum at the equator. While for 2015/2016 El Ni?o, there was a meridionally symmetric structure of SST warming with a minimum at the equator. ? 2021 by the authors. Licensee MDPI, Basel, Switzerland.