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RISFusing Numerical Weather Prediction Ensembles with Refractivity Inversions during Surface Ducting Conditions
Publisher: American Meteorological Society
Mixed Convective–Dynamic Roll Vortices and Their Effects on Initial Wind and Temperature Profiles
Publisher: American Meteorological Society
Abstract: The onset and development of both dynamically and convectively forced boundary-layer rolls are studied with linear and nonlinear analyses of a truncated spectral model of shallow Boussinesq flow. Emphasis is given here on ...
An Investigation of Sea Surface Temperature Influence on Microwave Refractivity: The Wallops-2000 Experiment
Publisher: American Meteorological Society
Abstract: he Wallops-2000 experiment took place in April and May 2000 in the vicinity of Wallops Island, Virginia, to collect high-resolution measurements of microwave propagation and coincident meteorological parameters in a complex ...
Summertime Marine Refractivity Conditions along Coastal California
Publisher: American Meteorological Society
Abstract: Large vertical gradients of temperature and moisture, which are not uncommon at the top of the marine atmospheric boundary layer (MABL), yield strong gradients in microwave refractivity that can result in anomalous ...
The Dynamics of Wave Clouds Upwind of Coastal Orography
Publisher: American Meteorological Society
Abstract: The Naval Research Laboratory?s Coupled Ocean?Atmosphere Mesoscale Prediction System (COAMPS) is used in conjunction with satellite observations and data from the Coastal Waves 1996 experiment to investigate the dynamics ...
Mesoscale Simulation of Supercritical, Subcritical, and Transcritical Flow along Coastal Topography
Publisher: American Meteorological Society
Abstract: A mesoscale atmospheric model is used to address the characteristics of stratified flow bounded by a side wall along a varying coastline. Initial Froude number values are varied through alteration of marine inversion ...
Supercritical Flow Interaction within the Cape Blanco–Cape Mendocino Orographic Complex
Publisher: American Meteorological Society
Abstract: Supercritical flow interaction occurring in the marine boundary layer between closely spaced coastal capes is investigated with a mesoscale numerical prediction model. As an extension of previous work, the U.S. Navy?s ...
Ensemble Prediction of Atmospheric Refractivity Conditions for EM Propagation
Publisher: American Meteorological Society
Abstract: n ensemble forecast system has been developed at the Naval Research Laboratory to improve the analyses and forecasts of atmospheric refractivity for electromagnetic (EM) propagation with the intention of accounting for ...
Estimation of Time-Averaged Surface Divergence and Vorticity from Satellite Ocean Vector Winds
Publisher: American Meteorological Society
Abstract: wo methods of computing the time-mean divergence and vorticity from satellite vector winds in rain-free (RF) and all-weather (AW) conditions are investigated. Consequences of removing rain-contaminated winds on the mean ...
Effects of Initial and Boundary Conditions of Mesoscale Models on Simulated Atmospheric Refractivity
Publisher: American Meteorological Society
Abstract: adar ducting is caused by sharp vertical changes in temperature and, especially, water vapor at the top of the atmospheric boundary layer, both of which are sensitive to variations in the underlying surface conditions, ...