Modeling Tip – December 2012
Reviewing AERMOD Warnings & Errors with a Text Editor
The AERMOD model produces a series of messages which document fatal errors, warnings, and other information messages about a model run. A modeler who knows how to read and interpret the messages can quickly diagnose problems or analyze results.
The image below shows the message summary from an AERMOD Output File.
The image below shows the message summary from an AERMOD Output File.
Messages are grouped into five categories, and the format is the same regardless of the category.
Pathway ID
The input file section where the error/warning occurred. Options include: Control (CO), Source (SO), Receptor (RE), Meteorology (ME), or Output (OU).
Message Code
This consists of a category identifier (E for fatal errors, W for warnings, I for information messages) and a number.
Line Number
The line number in the input file containing the problematic parameter.
NOTE: You can view line numbers in the Windows text editor, Notepad. Disable Word Wrap (from the Format menu) and enabling the Status Bar (in the View menu).
The input file section where the error/warning occurred. Options include: Control (CO), Source (SO), Receptor (RE), Meteorology (ME), or Output (OU).
Message Code
This consists of a category identifier (E for fatal errors, W for warnings, I for information messages) and a number.
Line Number
The line number in the input file containing the problematic parameter.
NOTE: You can view line numbers in the Windows text editor, Notepad. Disable Word Wrap (from the Format menu) and enabling the Status Bar (in the View menu).
Detailed Message
The first six characters are the subroutine from the model code which tells the model to print the message.
Hints
These may include a keyword or parameter which caused the error (e.g., source ID, group ID, etc.)
In AERMOD View, if you select the Output | AERMOD Output File menu option, the AERMOD output file (*.ADO), will be opened in the default text editor on your computer. Scroll to the very bottom of the file to see the messages and use the parameters to identify the meaning of the error or warning.
The first six characters are the subroutine from the model code which tells the model to print the message.
Hints
These may include a keyword or parameter which caused the error (e.g., source ID, group ID, etc.)
In AERMOD View, if you select the Output | AERMOD Output File menu option, the AERMOD output file (*.ADO), will be opened in the default text editor on your computer. Scroll to the very bottom of the file to see the messages and use the parameters to identify the meaning of the error or warning.
