Impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Ni&#241;o events and South China autumn rainfall

Tan Jing; Wang Zhanggui; Huang Ronghui; Cai Yi

doi:10.3969/j.issn.0253-4193.2017.11.006

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Tan Jing, Wang Zhanggui, Huang Ronghui, Cai Yi. Impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Niño events and South China autumn rainfall[J]. Haiyang Xuebao, 2017, 39(11): 61-74. doi: 10.3969/j.issn.0253-4193.2017.11.006

Citation:

Tan Jing, Wang Zhanggui, Huang Ronghui, Cai Yi. Impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Niño events and South China autumn rainfall[J]. Haiyang Xuebao, 2017, 39(11): 61-74. doi: 10.3969/j.issn.0253-4193.2017.11.006

Citation:

Tan Jing, Wang Zhanggui, Huang Ronghui, Cai Yi. Impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Niño events and South China autumn rainfall[J]. Haiyang Xuebao, 2017, 39(11): 61-74. doi: 10.3969/j.issn.0253-4193.2017.11.006

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Impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Niño events and South China autumn rainfall

doi: 10.3969/j.issn.0253-4193.2017.11.006

1.
Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;National Marine Environmental Forcasting Center, Beijing 100081, China
2.
National Marine Environmental Forcasting Center, Beijing 100081, China
3.
Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100190, China

Received Date: 2016-12-07
Rev Recd Date: 2017-01-12

Abstract

Abstract

Based on extended SST data (ERSST V3b) from NOAA Climate Prediction Center(CPC), monthly China 160 stations' precipitation data from National Climate Center(NCC) and monthly mean horizontal wind velocity, vertical velocity and humidity data at pressure level from the National Center for Environmental Prediction/National Center for Atmospheric Research(NCEP/NCAR), the impacts of two types of El Niño events over South China precipitation in autumn was discussed. And the focus was on the impacts of different sea surface temperature anomaly modes in Indian Ocean on the relationship between two types of El Niño Events and South China autumn rainfall. The results show that during the EP(CP) El Niño autumn, precipitation in south of the Changjiang River in China is more (less).When EP El Niño and India Ocean dipole (IOD) occur simultaneously, rainfall in autumn over South China is much more than that of not considering SST of India Ocean. When CP El Niño and IOD occur simultaneously, precipitation in Southwest China is more and that in Southeast China is less. When CP El Niño and India Ocean Basin Warming (IOB) occur at the same time, rainfall over South China in autumn is less, and the less degree is greater than that without considering SST anomaly of India Ocean. In addition, the circulation cause of the Indian Ocean SST's impacrtcs was analyzed.
- two types of El Niño events,
- Indian Ocean Dipole,
- Indian Ocean Basin Warming,
- South China,
- autumn rainfall

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