AERMOD Sensitivity Analysis Files

AERMOD Sensitivity Analysis Code v0.1 -- BRYANT E. MCDONNELL -- 11/12/13
Contact: bemcdonnell@gmail.com

Prerequisites: Python 2.7.6 32-bit
- Installation File is under ther "Python_Installer" folder.
- NUMPY and SCIPY toolkits for Python


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Script Details: AERMOD_IO.py

This Python Script was written to conduct a sensitivity analysis on AERMOD inputs and collects user defined data from the AERMOD output files. 

CHECKLIST:

The user should place ####.PFL, and ###.SFC files into the "BASEFILES" folder.

The user should place ####.inp in the AERMOD folder.

AERMOD.exe should be placed into the AERMOD folder.

"Right-click" on the AERMOD_IO.py and choose edit with IDLE

Once all the values are chosen and sensitivity inputs are correct, run the AERMOD_IO.py file.

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Conceptutally, using the 'SensPFL.txt' and 'SensSFC.txt' files, the user specifies the row number, column item number, and the "NEW" value for the sensitivity analysis. Each row is a separate simulation. 

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The below technique would be used if the user would like to conduct a single value sensitivity analysis where only ONE value from EITHER the PFL or SFC file would be changed. The program will conduct a sensitivity on then PFL changes... then on the SFC changes.

METHOD 1: Vary one parameter in either PFL or SFC


For example: in 'SensPFL.txt', the file should look like this:
1 3 37.2
2 4 51.0
3 3 69.0

row 2, item 4 will be replaced as 51.0

-- and -- 

For example: in 'SensSFC.txt', the file should look like this:
4 3 37.2
4 4 51.0
4 5 -69.0

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If the user would like to conduct a combination sensitivity analysis where each simulation would see changes to both a PFL and an SFC parameters, the user would setup the 'SensPFLaSFC.txt' with multiple statements in each row. As before, each row represents a simulation

METHOD 2: Vary multiple parameters in each simulation

for example:
PFL 1 3 37.2 PFL 2 4 51.0 SFC 4 3 37.2 SFC 4 5 51.0
PFL 1 3 37.2 PFL 2 4 51.0 SFC 4 3 37.2
PFL 2 4 51.0 SFC 4 3 37.2
PFL 1 3 37.2 PFL 2 4 51.0

-for the first simulation: In the PFL file, two items will be modified and in the SFC file, two items will be modified.The modified numbers must be written in one continuous row. 

-for the second simulation: In the PFL file, two items will be modified and in the SFC file, one item will be modified.The modified numbers must be written in one continuous row.
 
-for the third simulation: In the PFL file, one item will be modified and in the SFC file, one item will be modified.The modified numbers must be written in one continuous row. 

-for the forth simulation: In the PFL file, two items will be modified and in the SFC file, no items will be modified.The modified numbers must be written in one continuous row.