CALPUFF Modeling: File Structure and Naming Convention 

Purpose: This document outlines the file structure and naming convention used for the November 2015 EPA conducted 

for the Utah Regional Haze Federal Implementation Plan. 

1. The modeling protocol and other model related documents are contained in the home folder titled: 

Model_Documents 

2. CALPUFF model files are located in the folder titled: EPA CALPUFF Modeling (November 2015) - Regional Haze 

Federal Implementation Plan 

3. The CALPUFF executables are contained in the home folder titled: Executables 

4. The Ozone files are contained in the home folder titled: Ozone 

5. CALMET input, output, executable files are not available on the website because of the size. CALMET output files 

can be made available upon request. 

6. Directory Structure (Each model scenario has the same structure outlined below): 

• Model Scenario (Baseline, LNB/SOFA, LNB/SOFA/SNCR, LNB/SOFA/SCR) 

i. 2001 Model Year 

1. CALPUFF 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

2. POSTUTIL 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

3. CALPOST 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

ii. 2002 Model Year 

1. CALPUFF 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

2. POSTUTIL 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

3. CALPOST 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 
iii. 2003 Model Year 

1. CALPUFF 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

2. POSTUTIL 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

3. CALPOST 

a. Hunter – Unit 1 (contains input and output files) 

b. Hunter – Unit 2 (contains input and output files) 

c. Hunter – Unit 3 (contains input and output files) 

d. Huntington – Unit 1 (contains input and output files) 

e. Huntington – Unit 2 (contains input and output files) 

7. Naming Convention for Model Files 

• Sources will be represented by the letters in parentheses: Hunter (HU); Huntington (HT) 

• Units will be represented by the letters in parentheses: Unit 1 (01); Unit 2 (02); Unit 3 (03) 

• Model Scenarios will be represented by the letters in parentheses: Baseline (Alt9_Basecase); LNB/SOFA 

(Alt10_CC); LNB/SOFA/SNCR (Alt12_SNCR); LNB/SOFA/SCR (Alt11_SCR) 

• Model Years will be represented by the numbers in parentheses: 2001 (2001); 2002 (2002); 2003 (2003) 

• Class I Areas will be represented by the letters in parentheses: Arches National Park (ARCH), Black 

Canyon of the Gunnison National Park (BLACK), Bryce National Park (BRYCE), Canyonlands National Park 

(CANY), Capitol Reef National Park (CAPR), Flat Tops Wilderness Area (FTTOP), Grand Canyon National 

Park (GRANDC), Mesa Verde National Park (MESAV), Zion National Park (ZION) 

• CALPUFF Input and Output Sub-Folders: Source Name_Unit 

• POSTUTIL Input and Output Sub-Folders: Source Name_Unit 

• CALPOST Input and Output Sub-Folders: Source Name_Unit 

8. Please contact Rebecca Matichuk for more information. 

Rebecca Matichuk, PhD

U.S. Environmental Protection Agency – Region 8 Air Program

1595 Wynkoop Street, Denver, CO 80202

Office Number: 303-312-6867

Fax Number: 303-312-6064 

matichuk.rebecca@epa.gov