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RISEffects of the Large-Scale Flow on Characteristic Features of the Sea Breeze
Publisher: American Meteorological Society
Abstract: A two-dimensional nonlinear numerical model has been used to examine the effects of the ambient wind on the development of characteristic features of the sea breeze. The specific features that were examined were the maximum ...
Tests of a Perturbed Physics Ensemble Approach for Regional Climate Modeling
Publisher: American Meteorological Society
Abstract: Ensemble simulations were performed with the regional climate model RegCM2 using ranges of plausible values for two parameters in the deep convection scheme. The timescale for release of convective instability was varied ...
Thermodynamic Properties of Mesoscale Convective Systems Observed during BAMEX
Publisher: American Meteorological Society
Abstract: Dropsonde observations from the Bow Echo and Mesoscale Convective Vortex Experiment (BAMEX) are used to document the spatiotemporal variability of temperature, moisture, and wind within mesoscale convective systems (MCSs). ...
Mesoscale Convective Complexes and Persistent Elongated Convective Systems over the United States during 1992 and 1993
Publisher: American Meteorological Society
Abstract: Large, long-lived convective systems over the United States in 1992 and 1993 have been classified according to physical characteristics observed in satellite imagery as quasi-circular [mesoscale convective complex (MCC)] ...
Role of Topography in Forcing Low-Level Jets in the Central United States during the 1993 Flood-Altered Terrain Simulations
Publisher: American Meteorological Society
Abstract: Regional model sensitivity simulations in which the height of elevated terrain was reduced to explore simulated changes in features of the low-level jet (LLJ) are presented. Such an approach has not been reported, and it ...
Representation of Summertime Low-Level Jets in the Central United States by the NCEP–NCAR Reanalysis
Publisher: American Meteorological Society
Abstract: Reanalysis datasets that are produced by assimilating observations into numerical forecast models may contain unrealistic features owing to the influence of the underlying model. The authors have evaluated the potential ...
Experiments in probability of Precipitation Amount Forecasting Using Model Output Statistics
Publisher: American Meteorological Society
Abstract: Modifications to current model output statistics procedures for quantitative precipitation forecasting were explored. Probability of precipitation amount equations were developed for warm and cool seasons in a region in ...
On the Effect of Relative Timing of Diurnal and Large-Scale Forcing on Summer Extreme Rainfall Characteristics over the Central United States
Publisher: American Meteorological Society
Abstract: Impacts of diurnal radiative forcing on flow and rainfall patterns during summer flood and drought conditions (1993 and 1988, respectively) in the central United States were investigated using a regional climate model. The ...
Mesoscale Convective Systems over the United States during the 1997–98 El Niño
Publisher: American Meteorological Society
Abstract: Large, long-lived mesoscale convective systems (MCSs) over the United States during the 1997?98 El Niño are documented. Two periods of abnormal MCS activity are identified in 1998: from March to mid-April an unusually large ...