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Numerical Modeling of Micro-Numerical Modeling of Micro-Meso-scale Atmospheric Meso-scale Atmospheric
ProcessesProcesses
Mike KieferMike KieferResearch AssociateResearch Associate
Michigan State UniversityMichigan State University
Numerical Modeling Numerical Modeling StrategyStrategy
Validate model against available Validate model against available observationsobservations
Use model as a tool to investigate Use model as a tool to investigate processes in the atmosphereprocesses in the atmosphere Flow over complex terrainFlow over complex terrain Boundary layer evolutionBoundary layer evolution Fire-atmosphere interactionFire-atmosphere interaction
A Numerical Modeling A Numerical Modeling Study of the Nocturnal Study of the Nocturnal Boundary Layer Inside Boundary Layer Inside
Arizona’s Meteor CraterArizona’s Meteor Crater
In Review: Journal of In Review: Journal of Applied Meteorology and Applied Meteorology and
ClimatologyClimatology
Notable Features of Crater Notable Features of Crater NBLNBL
From Whiteman et al. 2008 (BAMS, Nov 2008, 1665-1680)
OBSERVED
Modeling StrategyModeling Strategy
x , y = 9 km
x , y = 50 m
Advanced Regional Prediction System
-Developed at the Center for Analysis and Prediction of Storms at the University of Oklahoma (Xue et al. 2001, 2003)
-Initial and boundary condition data for outer grid simulation from North American Regional Reanalysis (NARR)
Vertical Cross SectionsVertical Cross SectionsPotential Temperature (K)
1700 MST1800 MST1900 MST2000 MST2100 MST2200 MST2300 MST0000 MST
Model Results
Potential Temperature Potential Temperature ProfilesProfiles
Model Results
Thermodynamic BudgetThermodynamic Budget
Model Results
Application of ARPS to the Application of ARPS to the Study of Atmospheric Study of Atmospheric
Processes Associated with Processes Associated with Wildland FiresWildland Fires
Quasi-steady BehaviorQuasi-steady Behavior
Vertical Cross Section
(Y = 2.5 km)
Horizontal Cross Section
(Z = 600 m)
Fire With/Without Canopy Fire With/Without Canopy ParameterizationParameterization
Fire (No Canopy) Fire (With Canopy)
Questions?Questions?