ENSO teleconnections to the Indian summer monsoon in observations and models

Citations Over TimeTop 10% of 2016 papers

Abstract

ABSTRACT The teleconnections of different types of El Niño Southern Oscillation ( ENSO ) to the Indian summer monsoon are investigated in observations and models. We find that, not all regions in India are strongly affected by ENSO , so we focus on two regional teleconnections: (1) a negative rainfall signal around central north east ( CNE ) India and ‘hilly’ region during El Niño (and vice versa for La Niña) and (2) similar signal for parts of southern peninsular region. Using correlations, it is found that >50% of the fifth phase of the Coupled Model Inter‐comparison Project models capture these two regional teleconnections, with first captured by >80% of models. Furthermore, using a compositing technique that may better capture asymmetries in response to warm and cold events, the authors find that most models again agree on the sign of regional teleconnection around the CNE and hilly region, suggesting the robustness of ENSO signal in that region. The peninsular teleconnection is less well simulated in models. We find a clear connection between the Walker circulation and Indian summer monsoon rainfall around central India in models.

Related Papers

• → ENSO teleconnections to the Indian summer monsoon under changing climate(2019)63 cited
• → African monsoon teleconnections with tropical SSTs: validation and evolution in a set of IPCC4 simulations(2007)90 cited
• → Drivers of uncertainty in future projections of Madden–Julian Oscillation teleconnections(2021)16 cited
• → Synoptic climatology and the analysis of atmospheric teleconnections(2012)29 cited
• → The Change in the ENSO Teleconnection under a Low Global Warming Scenario and the Uncertainty due to Internal Variability(2020)22 cited