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RISTrajectory Analysis of Summertime Sulfate Concentrations in the Northeastern United States
Publisher: American Meteorological Society
Abstract: This paper presents a technique for quantifying the relationships between observed concentrations of atmospheric sulfate aerosol and their corresponding upstream history of sulfur dioxide emissions, wind speed and mixing ...
Stochastic Simulation of Atmospheric Trajectories
Publisher: American Meteorological Society
Abstract: Methods are presented for generating an ensemble of synthetic atmospheric trajectories. These include methods for a set of independent trajectories, and methods for a correlated set of sequential trajectories. The models ...
Nonprecipitating Low Cloud Frequencies for Central North America: 1982
Publisher: American Meteorological Society
Abstract: Nonprecipitating low cloud frequencies for 1982 have been extracted from the U.S. Air Force 3-Dimensional Nephanalysis archives for central North America. These data were compiled from satellite, surface and pilot reports ...
Shear Effects on Wind Interpolation Accuracy
Publisher: American Meteorological Society
Abstract: The dependence of wind interpolation accuracy on vertical shear was investigated using routine and supplemental rawinsonde data collected during the Cross Appalachian Tracer Experiment. Spatial interpolation error distributions ...
Uncertainty in Estimating Boundary-Layer Transport during Highly Convective Conditions
Publisher: American Meteorological Society
Abstract: Routine and supplemental rawinsonde observations collected during the Preliminary Regional Experiment for Storm-Central (PRE-STORM) were analyzed to assess the uncertainty in boundary-layer trajectory calculations due to ...
Uncertainty in Trajectory Calculations Due to Low Resolution Meteorological Data
Publisher: American Meteorological Society
Abstract: Meteorological observations conducted during the Cross Appalachian Tracer Experiment (CAPTEX) were utilized to quantify the uncertainty in boundary layer trajectory calculations due to low-resolution meteorological data ...
Ozone and Visibility Reduction in the Midwest: Evidence for Large-Scale Transport
Publisher: American Meteorological Society
Abstract: For June and July 1975, ozone concentrations throughout the Midwest showed a consistent dependence onwind direction with the highest concentrations associated with winds from the southeast. This systematicpattern suggests ...
Sensitivity of Urban Airshed Model (UAM-IV) Calculated Air Pollutant Concentrations to the Vertical Diffusion Parameterization during Convective Meteorological Situations
Publisher: American Meteorological Society
Abstract: It is shown that Urban Airshed Model (UAM-IV) calculated air pollutant concentrations during photochemical smog episodes in Atlanta, Georgia, depend strongly on the numerical parameterization of the daytime vertical ...
Use of Cluster Analysis to Define Periods of Similar Meteorology and Precipitation Chemistry in Eastern North America. Part II: Precipitation Patterns and Pollutant Deposition
Publisher: American Meteorological Society
Abstract: The precipitation chemistry associated with the flow patterns of transport-derived clusters has been examined. Cluster analysis was applied to transport vectors, derived from there years of daily trajectories arriving at ...
Use of Cluster Analysis to Define Periods of Similar Meteorology and Precipitation Chemistry in Eastern North America. Part I: Transport Patterns
Publisher: American Meteorological Society
Abstract: Cluster analysis has been applied to transport vectors, derived from three years of daily backwards trajectories, in order to define a synoptic climatology of representative three-day periods of air mass movement. The ...