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RISAn Improved Parameterization for Estimating Effective Atmospheric Emissivity for Use in Calculating Daytime Downwelling Longwave Radiation
Publisher: American Meteorological Society
Abstract: An improved parameterization is presented for estimating effective atmospheric emissivity for use in calculating downwelling longwave radiation based on temperature, humidity, pressure, and solar radiation observations. ...
Characteristics of Dryline Passage during COPS-91
Publisher: American Meteorological Society
Abstract: The characteristics of dryline passage are documented through an analysis of data from an instrumented surface mesonetwork in the Texas panhandle, and western and central Oklahoma during the Cooperative Oklahoma Profiler ...
An Operational, Diagnostic Surface Energy Budget Model
Publisher: American Meteorological Society
Abstract: In recent years, there has been a growing appreciation of the importance of land?atmosphere interactions in determining the state of the boundary layer. To examine this phenomenon in more detail, a new technique has been ...
Improved Installation Procedures for Deep-Layer Soil Moisture Measurements
Publisher: American Meteorological Society
Abstract: The Oklahoma Mesonet, an automated network of 115 meteorological observing stations, includes soil moisture monitoring devices at 60 locations. The Campbell Scientific model 229-L matric potential (water potential) sensor ...
Mesoscale Dynamics of the Near-Dryline Environment: Analysis of Data from COPS-91
Publisher: American Meteorological Society
Abstract: A technique is introduced using surface data from triangular networks of adjacent mesonet stations to estimate the terms in the horizontal equation of motion at anemometer level (10 m) on either side of the dryline in the ...
Value of Incorporating Satellite-Derived Land Cover Data in MM5/PLACE for Simulating Surface Temperatures
Publisher: American Meteorological Society
Abstract: The Parameterization for Land?Atmosphere?Cloud Exchange (PLACE) module is used within the Fifth-Generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale Model (MM5) to determine the ...
Using a Soil Hydrology Model to Obtain Regionally Averaged Soil Moisture Values
Publisher: American Meteorological Society
Abstract: The Soil Hydrology Model (SHM) was modified, and daily simulations of soil volumetric water content were made at 38 Oklahoma Mesonet sites for July 1997. These model results were compared with soil moisture observations ...
Severe Thunderstorm Development in Relation to Along-Dryline Variability: A Case Study
Publisher: American Meteorological Society
Abstract: Long-lived thunderstorms were initiated during the afternoon of 26 May 1991 ahead of a dryline in northwestern Oklahoma. Various reasons for initiation in this particular along-dryline location are investigated through ...
A Case Study of Severe Storm Development along a Dryline within a Synoptically Active Environment. Part II: Multiple Boundaries and Convective Initiation
Publisher: American Meteorological Society
Abstract: A dryline that occurred on 16 May 1991 within a synoptically active environment is examined in detail using research aircraft, radar, surface, satellite, and upper air observations. The work focuses on multiple boundaries ...
A Case Study of Severe Storm Development along a Dryline within a Synoptically Active Environment. Part I: Dryline Motion and an Eta Model Forecast
Publisher: American Meteorological Society
Abstract: Through a case study approach the motion of a dryline (on 16 May 1991) within a synoptically active environment in the southern plains, along which severe storms ultimately developed, is examined in detail. Observations ...