Interactive Feedback between ENSO and the Indian Ocean
نویسندگان
چکیده
منابع مشابه
Interaction Between the Indian Ocean Dipole and ENSO Associated with Ocean Subsurface Variability
The Indian Ocean dipole (IOD) is an intrinsic coupled mode of variability in the tropical Indian Ocean. It has broad impacts on regional climate. An IOD index is defined as the difference between sea surface temperature (SST) anomalies averaged over the western Indian Ocean (WIO, 50°–70°E, 10°S– 10°N) and eastern Indian Ocean (EIO, 90°– 110°E, 10°S–Eq.). An important issue in the studies of IOD...
متن کاملRevisiting ENSO/Indian Ocean Dipole phase relationships
Here we show that the characteristics of the Indian Ocean Dipole (IOD), such as its power spectrum and phase relationship with the El Niño–Southern Oscillation (ENSO), can be succinctly explained by ENSO combination mode (C-mode) wind and heat flux forcing together with a seasonal modulation of the air/sea coupled Indian Ocean (IO) Bjerknes feedback. This model explains the observed high-freque...
متن کاملA Look at the Relationship between the ENSO and the Indian Ocean Dipole
Using observed sea surface temperature data from 1871-1998, and observed wind data from 1958-1998, we have confirmed that the recently discovered Indian Ocean Dipole (IOD) is a physical entity. Many IOD events are shown to occur independently of the El Niño. By estimating the contribution from an appropriate El Niño index based on sea surface temperature anomaly in the eastern Pacific, we have ...
متن کاملImpacts of the Indian Ocean on the ENSO cycle
[1] This study examines the impacts of the Indian Ocean on the ENSO (El Niño-Southern Oscillation) cycle by performing experiments with a coupled atmosphere-ocean general circulation model (CGCM). In one of the experiments, the ocean model domain includes only the tropical Pacific Ocean (the Pacific Run). In the other experiment, the ocean model domain includes both the Indian and tropical Paci...
متن کاملRole of the ENSO–Indian Ocean coupling on ENSO variability in a coupled GCM
[1] The effect of the Indian Ocean on El Niño/La Niña life cycles has been studied using 200-yrs simulation data of a coupled GCM. The results show that the interactive feedback between the ENSO and the Indian Ocean holds the key to the rapid transition to an opposite phase. This remote impact of the IndianOceanSSTanomaly is linked to the change of zonal wind stress in the western Pacific, whic...
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ژورنال
عنوان ژورنال: Journal of Climate
سال: 2006
ISSN: 1520-0442,0894-8755
DOI: 10.1175/jcli3660.1