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La Niña Peaks Video
This Goddard video describes how the La Niña coupled ocean-atmosphere phenomenon affects the U.S. and how it is studied.

S-I Coupled Forecast is a near-real-time generation of an ensemble of experimental coupled (Tier 1) year-long forecasts. A large number of historical hindcasts with the coupled model is used to estimate model drift/bias as needed to correct the forecasts. The experimental forecasts and historical performance using the GMAO CGCMv1 can be viewed at the Experimental Climate Forecast.

Tier 2 Forecasts are near-real-time experimental 9-member ensemble atmosphere/land forecasts forced with specified SSTs (obtained from IRI). Research and post-processing provide miscellaneous research experiments to address model variability, predictability, and prediction skill issues. The experimental forecasts using the NSIPP1 AGCM can be viewed at the Experimental Climate Forecast.

Simulation of the diurnal cycle over the United States and Mexico is investigated in multi-year AGCM simulations, and a number of ensemble simulations for the warm season (May - September), at various resolutions ranging from 2 degrees to ½ degrees.

The link between extreme weather events over the United States and ENSO during boreal winter is investigated using a number of large-ensemble AGCM simulationsat various resolutions to assess the realism of the simulated extreme weather events, and to isolate the mechanisms that link the extreme events to ENSO.