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Showing 1 to 4 of 4 for “"North American Monsoon (NAM)"”.
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Improving Convective Permitting Model Simulations of Extreme Precipitation using Object-Based Tracking and Data Assimilation
… In Appendix B, we move our attention to the North American Monsoon (NAM) that takes place in Arizona, and we present an Observing System Simulation Experiment (OSSE) framework to test the impact of assimilating GPS-derived Precipitable Water Vapor (PWV) using different densities of …
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Examining Atmospheric and Ecological Drivers of Wildfires, Modeling Wildfire Occurrence in the Southwest United States, and Using Atmospheric Sounding Observations to Verify National Weather Service Spot Forecasts
… The rainfall and lightning associated with the North American Monsoon (NAM) can vary greatly intra- and inter-annually and has a large impact on wildfire activity across the SWA by igniting or suppressing wildfires. NAM onset thresholds and subsequent dates are determined for the SWA and each …
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CWRF summer precipitation prediction over the United States land and coastal oceans: effects of ensemble cumulus parameterization closures
… distribution, but produces wet biases over the North American Monsoon (NAM) region and Southeast U.S. which can be significantly reduced by using the W closure. Further skill enhancement can be made using an optimized ensemble of the MC and W closures. The TD and KF closures show advantages in …
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North American monsoon precipitation and its precursors: processes at the seasonal and diurnal scale
… and 10~km resolution for the 2000 and 2004 monsoon seasons (July-September), a dry year and a wet year. These years were chosen to represent contrasting precipitation outcomes to assure that results were robust across different monsoon conditions. Model precipitation was compared to …