Search
Now showing items 1-10 of 14
A Numerical Investigation of the Severe Thunderstorm Gust Front
Publisher: American Meteorological Society
Abstract: The structure of the thunderstorm gust front is investigated by a nonhydrostatic, two-dimensional (xz/) numerical model. In the model, which is dry, the production of negatively buoyant air by evaporation is parameterized ...
The Operational Eta Model Precipitation and Surface Hydrologic Cycle of the Columbia and Colorado Basins
Publisher: American Meteorological Society
Abstract: The surface hydrology of the United States? western basins is investigated using the National Centers for Environmental Prediction operational Eta Model forecasts. During recent years the model has been subject to changes ...
Relationships between Land Surface and Near-Surface Atmospheric Variables in the NCEP North American Regional Reanalysis
Publisher: American Meteorological Society
Abstract: This study examines the recently released National Centers for Environmental Prediction (NCEP) North American Regional Reanalysis (NARR) products over diverse climate regimes to determine the regional relationships between ...
Assessment of the Land Surface and Boundary Layer Models in Two Operational Versions of the NCEP Eta Model Using FIFE Data
Publisher: American Meteorological Society
Abstract: Data from the 1987 summer FIFE experiment for four pairs of days are compared with corresponding 48-h forecasts from two different versions of the Eta Model, both initialized from the NCEP?NCAR (National Centers for ...
Comparison of an Experimental NOAA AVHRR Cloud Dataset with Other Observed and Forecast Cloud Datasets
Publisher: American Meteorological Society
Abstract: CLAVR [cloud from AVHRR (Advanced Very High Resolution Radiometer)] is a global cloud dataset under development at NOAA/NESDIS (National Environmental Satellite, Data, and Information Service). Total cloud amount from two ...
Noah LSM Snow Model Diagnostics and Enhancements
Publisher: American Meteorological Society
Abstract: A negative snow water equivalent (SWE) bias in the snow model of the Noah land surface scheme used in the NCEP suite of numerical weather and climate prediction models has been noted by several investigators. This bias ...
The Impact of the Land Surface Physics in the Operational NCEP Eta Model on Simulating the Diurnal Cycle: Evaluation and Testing Using Oklahoma Mesonet Data
Publisher: American Meteorological Society
Abstract: On 31 January 1996, the National Centers for Environmental Prediction/Environmental Modeling Center (NCEP/EMC) implemented a state-of-the-art land surface parameterization in the operational Eta Model. The purpose of this ...
Importance of Cold Pools to NCEP Mesoscale Eta Model Forecasts
Publisher: American Meteorological Society
Abstract: The cold pool, a pool of evaporatively cooled downdraft air that spreads out horizontally along the ground beneath a precipitating cloud, is often a factor in severe weather and heavy precipitation events. Unfortunately, ...
Assessment of Dynamic Downscaling of the Continental U.S. Regional Climate Using the Eta/SSiB Regional Climate Model
Publisher: American Meteorological Society
Abstract: This study investigates the capability of the dynamic downscaling method (DDM) in a North American regional climate study using the Eta/Simplified Simple Biosphere (SSiB) Regional Climate Model (RCM). The main objective ...
Evaluation of Soil Moisture in the NCEP–NCAR and NCEP–DOE Global Reanalyses
Publisher: American Meteorological Society
Abstract: This study compares soil moisture analyses from the National Centers for Environmental Prediction?National Center for Atmospheric Research (NCEP?NCAR) global reanalysis (R-1) and the later NCEP? Department of Energy (DOE) ...