The overarching goal of MSMIP is to understand how tropical sub-monthly sea surface temperature (SST) variability influences tropical mean state moisture patterns and the eastward propagation of the Madden-Julian oscillation (MJO).
MSMIP will address this question with a series of climate model experiments designed to “lock in” the effects of SST variability on the mean state climate in coupled simulations while decoupling higher-frequency SST perturbations from convection. The decoupling will be achieved by prescribing SST anomalies that have been temporally or spatially randomized about the SST low-frequency background state to atmosphere-only versions of the control coupled simulation. The experiments are designed to answer the question
“What aspects of coupled model SST anomalies are most important
for tropical mean state moisture patterns and MJO propagation:
their phasing, pattern, or persistence?"


MSMIP is seeking participants to perform model experiments and submit results.
You can read more about the planned experiments here.
If you would like to participate in this project or have questions, please contact Charlotte DeMott through this link.
Analysis of model output anticipated to begin on 31 March 2022.
Twitter updates: @MSMIP1.