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RISGlobal Fields of Soil Moisture and Land Surface Evapotranspiration Derived from Observed Precipitation and Surface Air Temperature
Publisher: American Meteorological Society
Abstract: The global fields of normal monthly soil moisture and land surface evapotranspiration are derived with a simple water budget model that has precipitation and potential evapotranspiration as inputs. The precipitation is ...
Microphysics of Clouds with the Relaxed Arakawa–Schubert Scheme (McRAS). Part I: Design and Evaluation with GATE Phase III Data
Publisher: American Meteorological Society
Abstract: A prognostic cloud scheme named McRAS (Microphysics of Clouds with Relaxed Arakawa?Schubert Scheme) has been designed and developed with the aim of improving moist processes, microphysics of clouds, and cloud?radiation ...
Microphysics of Clouds with the Relaxed Arakawa–Schubert Scheme (McRAS). Part II: Implementation and Performance in GEOS II GCM
Publisher: American Meteorological Society
Abstract: A prognostic cloud scheme named the Microphysics of Clouds with the Relaxed Arakawa?Schubert Scheme (McRAS) and the Simple Biosphere Model have been implemented in a version of the Goddard Earth Observing System (GEOS) II ...
Simulation Errors Associated with the Neglect of Oceanic Salinity in an Atmospheric GCM
Publisher: American Meteorological Society
Abstract: In all the atmospheric general circulation models (GCMs) at the Goddard Laboratory for Atmospheres (GLA), the influence of oceanic salinity on the saturation vapor pressure of seawater is ignored. Since the relative humidity ...
Interactive Vegetation Phenology, Soil Moisture, and Monthly Temperature Forecasts
Publisher: American Meteorological Society
Abstract: The time scales that characterize the variations of vegetation phenology are generally much longer than those that characterize atmospheric processes. The explicit modeling of phenological processes in an atmospheric ...
A Rain Evaporation and Downdraft Parameterization to Complement a Cumulus Updraft Scheme and Its Evaluation Using GATE Data
Publisher: American Meteorological Society
Abstract: A rain evaporation and downdraft parameterization is designed to complement the cumulus convection scheme of the Goddard Laboratory for Atmospheres General Circulation Model (GLA GCM). The scheme invokes (i) a diagnostic ...
Contributions to the Implementation of the Arakawa-Schubert Cumulus Parameterization in the GLA GCM
Publisher: American Meteorological Society
Abstract: Several integrations were made with a coarse (4° ? 5° nine-sigma level) version of the GLA GCM, which has the Arakawa?Schubert cumulus parameterization, predicted fractional cloud cover, and a parameterization of evaporation ...
Analysis of a General Circulation Model Simulation of the Atmospheric Response to the Observed Sea Surface Temperature Anomalies of January and February 1983
Publisher: American Meteorological Society
Abstract: An ensemble of three sets of simulations is produced with the GLA (Goddard Laboratory for Atmospheres) GCM to assess the effect of the El Niño event of 1982?83 on winter climate. The three sets of runs are started from the ...
Impact of the Ongoing Amazonian Deforestation on Local Precipitation: A GCM Simulation Study
Publisher: American Meteorological Society
Abstract: Numerical simulation experiments were conducted to delineate the influence of in situ deforestation data on episodic rainfall by comparing two ensembles of five 5-day integrations performed with a recent version of the ...
Role of a Cumulus Parameterization Scheme in Simulating Atmospheric Circulation and Rainfall in the Nine-Layer Goddard Laboratory for Atmospheres General Circulation Model
Publisher: American Meteorological Society
Abstract: A coarse (4° whereas the second set, containing experiment cases, used the same GCM but without the cumulus parameterization. All simulations started from initial conditions that were taken from analysis of observations ...