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Sensitivity of North American Numerical Weather Prediction to Initial State Uncertainty in Selected Upstream Subdomains
Publisher: American Meteorological Society
Abstract: In this study the impact of initial uncertainty in localized regions on midrange forecast sensitivity over North America is studied. The local regions considered are the North American domain and two areas upstream, one ...
Sensitivity of a Global Forecast Model to Initializations with Reanalysis Datasets
Publisher: American Meteorological Society
Abstract: A global research model is initialized with reanalysis datasets obtained from NCEP and ECMWF. The globally averaged accuracy of the resulting 120-h predictions varies little between the different initializations, but a ...
Simulated Water Table and Soil Moisture Climatology Over North America
Publisher: American Meteorological Society
Abstract: We demonstrate the link between two terrestrial water reservoirs: the root-zone soil moisture and the groundwater, and contribute our simulated climatologic water table depth and soil moisture fields over North America to ...
WRF with Water Vapor Tracers: A Study of Moisture Sources for the North American Monsoon
Publisher: American Meteorological Society
Abstract: he regional atmospheric Weather Research and Forecasting (WRF) Model with water vapor tracer diagnostics (WRF-WVT) is used to quantify the water vapor from different oceanic and terrestrial regions that contribute to ...
Regional Climate Simulations over North America: Interaction of Local Processes with Improved Large-Scale Flow
Publisher: American Meteorological Society
Abstract: The reasons for biases in regional climate simulations were investigated in an attempt to discern whether they arise from deficiencies in the model parameterizations or are due to dynamical problems. Using the Regional ...
Effects of a Groundwater Scheme on the Simulation of Soil Moisture and Evapotranspiration over Southern South America
Publisher: American Meteorological Society
Abstract: he effects of groundwater dynamics on the representation of water storage and evapotranspiration (ET) over southern South America are studied from simulations with the Noah-MP land surface model. The model is run with three ...
Impacts of a Groundwater Scheme on Hydroclimatological Conditions over Southern South America
Publisher: American Meteorological Society
Abstract: sensitivity study of the impact of a groundwater scheme on hydrometeorological variables in coupled land?atmosphere simulations over southern South America is presented. It is found that shallow water tables in the groundwater ...
Intercomparison of Global Research and Operational Forecasts
Publisher: American Meteorological Society
Abstract: Current limitations of atmospheric predictive skill are investigated through comparison of correlation and error statistics of operational and research global models for two winter seasons. In 1993, bias-corrected models ...