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RISHigh-Latitude Filtering in Global Grid-Point Models
Publisher: American Meteorological Society
Abstract: Latitude-longitude grid-point models with explicit time schemes require filtering of unstable short waves at high latitudes to avoid the use of prohibitively short time steps. Using a shallow water model and a Rossby?Haurwitz ...
Use of Satellite Radiometric Imagery Data for Improvement in the Analysis of Divergent Wind in the Tropics
Publisher: American Meteorological Society
Abstract: A scheme is proposed to incorporate satellite radiometric imagery data into the specification of initial conditions for the National Meteorological Center (NMC) operational global prediction model in order to improve the ...
Multidecadal Simulations of Australian Rainfall Variability: The Role of SSTs
Publisher: American Meteorological Society
Abstract: Australian rainfall variability and its relationship with the Southern Oscillation index (SOI) and global sea surface temperature (SST) variability is considered in both observational datasets and ensembles of multidecadal ...
Dynamical Seasonal Forecasts during the 1997/98 ENSO Using Persisted SST Anomalies
Publisher: American Meteorological Society
Abstract: An evaluation of trial seasonal forecasts during the 1997/98 El Niño, using an atmospheric GCM forced by persisted sea surface temperature and sea-ice anomalies, is presented. Generally, forecasts of seasonal anomalies of ...