ENSO Modulations due to Interannual Variability of Freshwater Forcing and Ocean Biology-induced Heating in the Tropical Pacific

被引：40
作者：
Zhang, Rong-Hua [1 ]
Gao, Chuan [1 ,2 ]
Kang, Xianbiao [1 ,3 ]
Zhi, Hai [4 ]
Wang, Zhanggui [3 ]
Feng, Licheng [3 ]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100029, Peoples R China
[3] State Ocean Adm, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China
[4] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing 210044, Jiangsu, Peoples R China
来源：
SCIENTIFIC REPORTS | 2015年 / 5卷
关键词：
EQUATORIAL PACIFIC; EL-NINO; PENETRATIVE RADIATION; COUPLED MODEL; MIXED-LAYER; CLIMATE; SALINITY; FEEDBACK; PHYTOPLANKTON; SIMULATIONS;
D O I：
10.1038/srep18506
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Recent studies have identified clear climate feedbacks associated with interannual variations in freshwater forcing (FWF) and ocean biology-induced heating (OBH) in the tropical Pacific. The interrelationships among the related anomaly fields are analyzed using hybrid coupled model (HCM) simulations to illustrate their combined roles in modulating the El Nino-Southern Oscillation (ENSO). The HCM-based supporting experiments are performed to isolate the related feedbacks, with interannually varying FWF and OBH being represented individually or collectively, which allows their effects to be examined in a clear way. It is demonstrated that the interannual freshwater forcing enhances ENSO variability and slightly prolongs the simulated ENSO period, while the interannual OBH reduces ENSO variability and slightly shortens the ENSO period, with their feedback effects tending to counteract each other.
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页数：11
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