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2015 Ozone NAAQS Transport SIP Modeling (2012 Episode)

Air quality modeling files and data to support the 2015 Ozone NAAQS Transport SIP.

On August 8, 2018, the TCEQ adopted revisions to the Texas state implementation plan (SIP) to address the transport requirements of the 2015 Eight-Hour Ozone National Ambient Air Quality Standards (2015 Ozone NAAQS Transport SIP revision). The TCEQ completed photochemical modeling to support the 2015 Ozone NAAQS Transport SIP revision.

FTP client software , such as FileZilla, is recommended to efficiently retrieve the modeling files from Web browsers may not support FTP. Contact with any questions.

Model Configuration

Meteorological Model: WRF v3.8.1

Photochemical Model: CAMx v6.40 with CB6 r4h (CB6 Release 4 and halogen chemistry). CAMx source code was compiled with PGI compiler v15.7 (with -Kieee option) and MPICH v2-1.2.1p1 on a server running Red Hat Enterprise Linux (RHEL) 6.4; the model runs were conducted on a High Performance Computing Cluster (HPCC) running RHEL 6.4 (7 MPI nodes and 16 OMP threads on each node).

Modeling Episode: May 1 - September 30, 2012 (CAMx ramp-up days: April 16 - 30, 2012)

TCEQ 2012 Modeling Platform Technical Support Document

2012 Base Case Modeling Result

CAMx base case run name: bc12_12m2s.r6e_r4cBpxaKS.2012_wrf381_p2mKS_g

Observed data: hourly and 8-hour ozone concentration data from AQS monitoring sites are available for download from the TCEQ Air Modeling FTP site .

Time-series data: 2012 base case ozone concentration data paired with observed data at AQS monitoring sites are available for download from the TCEQ Air Modeling FTP site .

2023 Future Case Modeling Result

CAMx future case run name: fy23_12m2s.c0b_c0aBpxaKS.2012_wrf381_p2mKS_g

Future Ozone Design Value (DVf) and Component Contribution Table (Excel)

Modeling Data Files

CAMx input and output files: File List (including CAMx APCA input and output files; total size is 1.2 TB, gzip-compressed)

WRF output files: File List (total size is 3.4 TB, uncompressed)

Due to the large size of these modeling data, they are not available for online download. If you want to obtain the data, please e-mail us at with "Ozone Transport Modeling Files - Data Request" in the subject line and also specify which set of data you request: CAMx, WRF or both.

Pre-CAMx Component Emissions Inventory Data: available for download from the TCEQ Air Modeling FTP site