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RISFeasibility of Seasonal Forecasts Inferred from Multiple GCM Simulations
Publisher: American Meteorological Society
Abstract: Assuming that SST provides the major lower boundary forcing for the atmosphere, observed SSTs are prescribed for an ensemble of atmospheric general circulation model (GCM) simulations. The ensemble consists of 9 ?decadal? ...
Components of the Radiation Balance of Irrigated Plots in a Dry Monsoonal Environment
Publisher: American Meteorological Society
Abstract: Over irrigated crops of cotton grown in a dry monsoonal environment, net radiation was measured daily over a period of one year together with total radiation, duration of sunshine, and wet and dry bulb screen temperature. ...
A Scheme for Continuous Data Assimilation
Publisher: American Meteorological Society
Abstract: Major revisions to the Geophysical Fluid Dynamics Laboratory's (GFDL) continuous data-assimilation system have been implemented and tested. Shortcomings noted during the original processing of data from FGGE [First GARP ...
Reduction of the Gibbs Oscillation in Spectral Model Simulations
Publisher: American Meteorological Society
Abstract: Spectral atmospheric general circulation models (GCMS) have been used for many years for the simulation and prediction of the atmospheric circulation, and their value has been widely recognized. Over the years, however, ...
The Madden–Julian Oscillation and Its Impact on Northern Hemisphere Weather Predictability
Publisher: American Meteorological Society
Abstract: The Madden?Julian oscillation (MJO) is known as the dominant mode of tropical intraseasonal variability and has an important role in the coupled-atmosphere system. This study uses numerical model experiments to investigate ...
The Role of Coupled Sea Surface Temperatures in the Simulation of the Tropical Intraseasonal Oscillation
Publisher: American Meteorological Society
Abstract: This study compares the tropical intraseasonal oscillation (TISO) variability in the Geophysical Fluid Dynamics Laboratory (GFDL) coupled general circulation model (CGCM) and the stand-alone atmospheric general circulation ...
Global Occurrences of Extreme Precipitation and the Madden–Julian Oscillation: Observations and Predictability
Publisher: American Meteorological Society
Abstract: This study investigates 1) the eastward propagation of the Madden?Julian oscillation (MJO) and global occurrences of extreme precipitation, 2) the degree to which a general circulation model with a relatively realistic ...
FGGE Reanalysis at GFDL
Publisher: American Meteorological Society
Abstract: The reanalysis of FGGE (First GARP (Global Atmospheric Research Program) Global Experiment) data for 128 days during two special observing periods has been performed, using an improved data-assimilation system and the ...
Impact of Large-Scale Circulation on Tropical Storm Frequency, Intensity, and Location, Simulated by an Ensemble of GCM Integrations
Publisher: American Meteorological Society
Abstract: Tropical storms simulated by a nine-member ensemble of GCM integrations forced by observed SSTs have been tracked by an objective procedure for the period 1980?88. Statistics on tropical storm frequency, intensity, and ...
Potential Predictability of the Madden–Julian Oscillation
Publisher: American Meteorological Society
Abstract: The objective of this study is to estimate the limit of dynamical predictability of the Madden?Julian oscillation (MJO).Ensembles of ?twin? predictability experiments were carried out with the NASA Goddard Laboratory for ...