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Effects of Moisture Released during Forest Burning on Fog Formation and Implications for Visibility
Publisher: American Meteorological Society
Abstract: Smoke from wildland burning in association with fog has been implicated as a visibility hazard over roadways in the United States. Visibilities at accident sites have been estimated in the range from 1 to 3 m (extinction ...
The Relationship Between the Surface Wind Field and Convective Precipitation over the St. Louis Area
Publisher: American Meteorological Society
Abstract: Rainfall, wind and temperature data at the surface for a mesoscale area surrounding St. Louis, Missouri for seven summer days in 1975 were used to determine qualitative and quantitative relationships between divergence, ...
On the Initialization Problem: A Variational Adjustment Method
Publisher: American Meteorological Society
Abstract: Primitive equation initialization, applicable to numerical prediction models, has been studied by using principles of variational calculus and the appropriate physical equations: two horizontal momentum, adiabatic energy, ...
Reducing Hydrostatic Truncation Error in a Mesobeta Boundary Layer Model
Publisher: American Meteorological Society
Abstract: Tiny pressure gradient forces caused by hydrostatic truncation error can overwhelm minuscule pressure gradients that drive shallow nocturnal drainage winds in a mesobeta numerical model. In seeking a method to reduce these ...
The Use of Insects as Tracers for “Clear-Air” Boundary-Layer Studies by Doppler Radar
Publisher: American Meteorological Society
Abstract: Single- and multiple-Doppler radar systems are increasingly being used to monitor circulations within the clear-air boundary layer where the scatterers may be gradients of the refractive index or biota or a combination of ...
Evaluation of Operational Objective Streamline Methods
Publisher: American Meteorological Society
Abstract: Objective streamline analysis techniques are separated into predictor-only and predictor-corrector methods, and generalized error formulas are derived for each method. Theoretical analysis errors are obtained from the ...
The Impact of Data Boundaries upon a Successive Corrections Objective Analysis of Limited-Area Datasets
Publisher: American Meteorological Society
Abstract: Successive corrections objective analysis techniques frequently are used to array data from limited area without consideration of how the absence of data beyond the boundaries of the network impacts the analysis in the ...
On the Concept of Varying Influence Radii for a Successive Corrections Objective Analysis
Publisher: American Meteorological Society
Abstract: There has been a long-standing concept by those who use successive corrections objective analysis that the way to obtain the most accurate objective analysis is first, to analyze for the long wavelengths and then to build ...
Modification of a Successive Corrections Objective Analysis for Improved Derivative Calculations
Publisher: American Meteorological Society
Abstract: The use of objectively analysed fields of meteorological data for complex diagnostic studies and for the initialization of numerical prediction models places the requirements upon the objective method that derivatives of ...