air quality assessment & management
Reference and User Manual
AirWare On-line Reference Manual
The Weather Research and Forecasting (WRF) Model is a next-generation mesoscale numerical weather prediction system designed to serve both operational forecasting and atmospheric research needs.
The WRF model is a fully compressible, and nonhydrostatic model (with a runtime hydrostatic option). Its vertical coordinate is a terrain-following hydrostatic pressure coordinate. The grid staggering is the Arakawa C-grid. The model uses the Runge-Kutta 2nd and 3rd order time integration schemes, and 2nd to 6th order advection schemes in both horizontal and vertical. It uses a time-split small step for acoustic and gravity-wave modes. The dynamics conserves scalar variables.
The current WRF software framework supports multiple dynamical cores such as:
Model structure: WRF is implemented with a set of data basaes and cgi's
cgi's directory: /var/www/cgi-bin/wrf contains:
The main program wrfrun.cgi initializes WRF runs reading WRF scenario entries from the database WRF.WRF_scenario (such as simulation date and time, run type, location and domain, data and application directories). The program performs decoding and interoplation of meteo input data from the global models in the input data directory, writes namelist files for the model configuration and runs the model. If the model run was successful, results are saved into the output directory. Output is coverted from the LCP to UTM grid using conversion program for CAMx.
The results are imported for the WRF scenario and for monitoring stations (Meteorology and Combined).
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