Science Highlights

Drifts/biases are often present when climate models are initialized from observed conditions to produce climate predictions.Model drifts are usually removed for skill assessment but they are rarely analysed.

Compared with the not evident increase of Pacific heat content, Indian Ocean heat content has dramatically increased over the "hiatus" period. 

The observed precipitation in South America exhibits significant anomalies when there are strong sea surface temperature anomalies (SSTA) in different parts of equatorial Pacific. The study analyses how models simulate these influences in present day climate simulations.

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