Abstract
AbstractA new version of the Community Atmospheric Model, CAM5.1, is used to quantify the impacts of tropical instability waves (TIWs)‐induced sea surface temperature (SSTTIW) forcing on the atmosphere over the central‐eastern tropical Pacific. Two CAM5.1‐based simulations are performed, a control run in which monthly mean climatological SST (SSTclim) field is prescribed as a surface boundary condition, and a perturbation run in which daily varying SSTTIW field explicitly extracted from satellite data is superimposed onto the SSTclim field to force the CAM5.1. It is illustrated that the additionally imposed SSTTIW forcing acts to have a significant effect on TIW‐scale variability and mean atmospheric circulation structure over the central‐eastern tropical Pacific.
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