Reconciling opposing Walker circulation trends in observations and model projections

Reconciling opposing Walker circulation trends in observations and model projections

Reconciling opposing Walker circulation trends in observations and model projections, Published online: 01 April 2019; doi:10.1038/s41558-019-0446-4

The Pacific Walker circulation is predicted to weaken, however, observations suggest a current strengthening. Satellite humidity observations show a weaker response than reanalyses; coupled with model simulations, this suggests that internal variability dominates recent strengthening.