Articles | Volume 2, issue 3
Research article
24 Sep 2021
Research article |  | 24 Sep 2021

Minimal impact of model biases on Northern Hemisphere El Niño–Southern Oscillation teleconnections

Nicholas L. Tyrrell and Alexey Yu. Karpechko

Data sets

CHAM6 Bias Correction ENSO Nicholas Tyrrell and Alexey Yu. Karpechko

ERA5 hourly data on pressure levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut

Short summary
Tropical Pacific sea surface temperatures (El Niño) affect the global climate. The Pacific-to-Europe connection relies on interactions of large atmospheric waves with winds and surface pressure. We looked at how mean errors in a climate model affect its ability to simulate the Pacific-to-Europe connection. We found that even large errors in the seasonal winds did not affect the response of the model to an El Niño event, which is good news for seasonal forecasts which rely on these connections.