期刊
SCIENTIFIC REPORTS
卷 5, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep18506
关键词
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资金
- IOCAS through the CAS Strategic Priority Project (the Western Pacific Ocean System (WPOS)) [XDA11010105, XDA11010301]
- Qingdao National Laboratory for Marine Science and Technology
- China 973 project [2012CB956000]
- NSFC [41230527, 41375065, 41475101]
- NSFC-Shandong Joint Fund for Marine Science Research Centers [U1406401]
- NSFC Innovative Group Grant [41421005]
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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