Abstract
AbstractThe El Niño-Southern Oscillation (ENSO) and the Indian summer monsoon (ISM, or monsoon) are two giants of tropical climate. Here we assess the future evolution of the ENSO-monsoon teleconnection in climate simulations with idealized forcing of CO2 increment at a rate of 1% year-1 starting from a present-day condition (367 p.p.m.) until quadrupling. We find a monotonous weakening of the ENSO-monsoon teleconnection with the increase in CO2. Increased co-occurrences of El Niño and positive Indian Ocean Dipoles (pIODs) in a warmer climate weaken the teleconnection. Co-occurrences of El Niño and pIOD are attributable to mean sea surface temperature (SST) warming that resembles a pIOD-type warming pattern in the Indian Ocean and an El Niño-type warming in the Pacific. Since ENSO is a critical precursor of the strength of the Indian monsoon, a weakening of this relation may mean a less predictable Indian monsoon in a warmer climate.
Funder
National Research Foundation of Korea
Publisher
Springer Science and Business Media LLC
Subject
Atmospheric Science,Environmental Chemistry,Global and Planetary Change
Reference91 articles.
1. Goswami, B. N. South asian summer monsoon: An overview; in the global monsoon system: Research and forecast.Third International Workshop on Monsoon (IWM-III) (2-6 November 2004, Hangzhou, China) (TMRP 70) (WMO TD 1266). (2005).
2. Charney, J. G. & Shukla, J. Predictability of monsoons. Monsoon Dynam. 99–109 (1981).
3. Shukla, J. & Paolino, D. A. The Southern Oscillation and Long-Range Forecasting of the Summer Monsoon Rainfall over India. Monthly Weather Rev.111, 1830–1837 (1983).
4. Webster, P. J. et al. Monsoons: processes, predictability, and the prospects for prediction. J. Geophys. Res.: Oceans 103, 14451–14510 (1998).
5. Kumar, K. K., Rajagopalan, B. & Cane, M. A. On the weakening relationship between the Indian monsoon and ENSO. Science 284, 2156–2159 (1999).
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