AERMOD AERMOD A Regulatory Model to be Used for Permitting and - - PowerPoint PPT Presentation
AERMOD AERMOD A Regulatory Model to be Used for Permitting and Compliance AERMOD Modelling System: A steady-state plume model that incorporates air dispersion to find concentration of pollutants at various receptors. This makes our
AERMOD Modelling System: A steady-state plume model that
incorporates air dispersion to find concentration of pollutants at various receptors.
This makes our work easier in the field of Air Quality Modelling.
We need four (4) files to run AERMOD
Input file which consists of source location, receptor locations, and
AERMOD Application (Executable file) Meteorological data: AERMOD requires two types of meteorological data
files, that are provided by the AERMET meteorological preprocessor program (EPA, 2004b).
One file with surface scalar parameters (Surface MET data file) Other file consists of vertical profiles of meteorological data (Profile
MET data file)
# of Sources – 10 # of Receptors – 1000 # of Meteorological conditions (5 year ) – 5 * 365 days * 24h/day =
43,800
Total Number of calculations – 10 * 1000 * 43,800 438,000,0000 (438 Million individual calculations)
Source Groups (e.g., Distribution Out of the 10 Discussed Above)
3 – Coke Ovens 3 – Blast Furnace 4 – Others
Averaging Times (e.g., Monthly; or 30-Day Rolling Averages)
Jan 1-31; Feb 1-28; Etc. Jan 15 – Feb 13 (30-Day); April 15 – May 14 (30-Day)
Highest or 2nd Highest at each Receptor (Raw Calculations for 1-hr
Averaging Only)
43,800 individual values at each receptor
The basic types of printed output available with AERMOD are:
Summaries of high values (highest, second highest, etc.) at receptor
for each averaging period and source group combination
Summaries of overall maximum values (e.g., the maximum 50) for
each averaging period and source group combination;
Top 50 Values among 438,000,000 calculcations
Make sure that all the four files (AERMOD application, Input File,
Profile MET data file, Surface MET data file) are in the same folder.
Go to command prompt and give the path of the folder by using
change directory(cd).
Example: The location of my folder is C:\Users\Paleti\Desktop In command prompt,