# Latest **URL:** https://forum.cmascenter.org/latest.md [Latest](https://forum.cmascenter.org/latest.md) · [Categories](https://forum.cmascenter.org/categories.md) · [Tags](https://forum.cmascenter.org/tags.md) --- ## [Welcome to Discourse](https://forum.cmascenter.org/t/welcome-to-discourse/8)
**Author:** [@system](https://forum.cmascenter.org/u/system)\ **Replies:** 4\ **Last updated:** [December 6, 2021, 11:20am UTC](https://forum.cmascenter.org/t/welcome-to-discourse/8 "2021-12-06T11:20:29Z")
Welcome to our CMAS CENTER forum, for discussion and support of atmospheric modeling software. Please share any questions or answers by posting on this forum, as this will help us build up our shared community knowledge … --- ## [CAMx: downloading input data from EPA OSAP 2022 modeling platform](https://forum.cmascenter.org/t/camx-downloading-input-data-from-epa-osap-2022-modeling-platform/6272)
**Author:** [@flyenz0](https://forum.cmascenter.org/u/flyenz0)\ **Replies:** 6\ **Last updated:** [September 22, 2026, 6:15pm UTC](https://forum.cmascenter.org/t/camx-downloading-input-data-from-epa-osap-2022-modeling-platform/6272 "2026-09-22T18:15:57Z")
Describe your issue in detail I am still new at using CAMx for real world applications, and am preparing a CAMx annual run using input files from the OSAP 2022 modeling platform on this AWS website: OSAP 2022 Modeling P… --- ## [How is MCIP handling projections for nested domains?](https://forum.cmascenter.org/t/how-is-mcip-handling-projections-for-nested-domains/6281)
**Author:** [@a\_fernandez](https://forum.cmascenter.org/u/a_fernandez)\ **Replies:** 6\ **Last updated:** [September 21, 2026, 7:14pm UTC](https://forum.cmascenter.org/t/how-is-mcip-handling-projections-for-nested-domains/6281 "2026-09-21T19:14:12Z")
Hello, A geographical file (and the WRF output) includes the following attributes: :DYN\_OPT = 2 ; :CEN\_LAT = 47.58337f ; :CEN\_LON = -122.3172f ; :TRUELAT1 = 40.f ; :TRUELAT2 = 50.f ; :MOAD\_CEN\_LAT = 45.25f ; :ST… --- ## [Is CMAQ-ISAM possible to tag for Particle Number variable (NUMATN, NUMACC, or NUMCOR)?](https://forum.cmascenter.org/t/is-cmaq-isam-possible-to-tag-for-particle-number-variable-numatn-numacc-or-numcor/4135)
**Author:** [@kkkghs0828](https://forum.cmascenter.org/u/kkkghs0828)\ **Replies:** 5\ **Last updated:** [September 21, 2026, 12:04pm UTC](https://forum.cmascenter.org/t/is-cmaq-isam-possible-to-tag-for-particle-number-variable-numatn-numacc-or-numcor/4135 "2026-09-21T12:04:39Z")
Hello. I am curious if CMAQ-ISAM can tag for particle numbers. In the isam\_control.txt file, I can choose only 9 options. e.g. !!! Choose any/all from the list of nine: SULFATE, NITRATE, AMMONIUM, EC, OC, VOC, PM2… --- ## [ISAM mass imbalance in output](https://forum.cmascenter.org/t/isam-mass-imbalance-in-output/6242)
**Author:** [@calvinhowes](https://forum.cmascenter.org/u/calvinhowes)\ **Replies:** 7\ **Last updated:** [September 21, 2026, 12:03pm UTC](https://forum.cmascenter.org/t/isam-mass-imbalance-in-output/6242 "2026-09-21T12:03:07Z")
I’m running into a mass balance issue using ISAM. When I run CMAQ with a tagged emissions stream in ISAM, I’m finding that there is a discrepancy for aerosol species in the sum of total streams vs. the output in the ACO… --- ## [Segmentation fault with SMOKE 5.3 smoke\_example\_case\_v3/2022he\_cb6\_22m](https://forum.cmascenter.org/t/segmentation-fault-with-smoke-5-3-smoke-example-case-v3-2022he-cb6-22m/6278)
**Author:** [@lexiewilson](https://forum.cmascenter.org/u/lexiewilson)\ **Replies:** 2\ **Last updated:** [September 18, 2026, 4:54pm UTC](https://forum.cmascenter.org/t/segmentation-fault-with-smoke-5-3-smoke-example-case-v3-2022he-cb6-22m/6278 "2026-09-18T16:54:21Z")
Hello! I am running SMOKE 5.3 and getting a runtime error when I try to run the nonpt sector script. I have run every other sector in the example case (point, onroad, all other nonpoint sectors) without runtime errors. … --- ## [Error with compute\_EPICSiteData](https://forum.cmascenter.org/t/error-with-compute-epicsitedata/6283)
**Author:** [@mkharkey](https://forum.cmascenter.org/u/mkharkey)\ **Replies:** 1\ **Last updated:** [September 16, 2026, 9:13pm UTC](https://forum.cmascenter.org/t/error-with-compute-epicsitedata/6283 "2026-09-16T21:13:15Z")
Hello, I’m working with FEST-C version 1.4, installed on a linux machine with Spatial Allocator version 4.4. When running the crop site info generation step from the GUI, the process just stops (no output files written)… --- ## [EQUATES Meteorology Performance Evaluation?](https://forum.cmascenter.org/t/equates-meteorology-performance-evaluation/6279)
**Author:** [@crscalpone](https://forum.cmascenter.org/u/crscalpone)\ **Replies:** 1\ **Last updated:** [September 16, 2026, 5:14pm UTC](https://forum.cmascenter.org/t/equates-meteorology-performance-evaluation/6279 "2026-09-16T17:14:37Z")
Dear CMAS Forum, I am using the EQUATES 2019 emissions and meteorology platform, and I am looking for documentation about the model performance evaluation of the WRF inputs. I can see on this EQUATES webpage that it sa… --- ## [Problem reading smk\_merge\_dates](https://forum.cmascenter.org/t/problem-reading-smk-merge-dates/6275)
**Author:** [@DLyder](https://forum.cmascenter.org/u/DLyder)\ **Replies:** 1\ **Last updated:** [September 14, 2026, 8:07pm UTC](https://forum.cmascenter.org/t/problem-reading-smk-merge-dates/6275 "2026-09-14T20:07:05Z")
Hello! I am trying to run CMAQ 5.5.0.3 to process some stack sources that were created using the mwdss representative date option in SMOKE 5.1. I have included detailed information for the ptnonipm sector. The CCTM scri… --- ## [CB6 mechanism regarding Semi-volatile POA](https://forum.cmascenter.org/t/cb6-mechanism-regarding-semi-volatile-poa/6265)
**Author:** [@kkkghs0828](https://forum.cmascenter.org/u/kkkghs0828)\ **Replies:** 10\ **Last updated:** [September 10, 2026, 2:24pm UTC](https://forum.cmascenter.org/t/cb6-mechanism-regarding-semi-volatile-poa/6265 "2026-09-10T14:24:00Z")
Hi Everyone, I have questions about the treatment of semi-volatile POA in the CMAQ\_DESID file. ! Gas Species : VLVPO1 VSVPO1 VSVPO2 VSVPO3 VIVPO1 ! Particle Species : ALVPO1 ASVPO1 ASVPO2 ASVPO3 AIVPO1 ! C\* (µg … --- ## [CB6 mechanism regarding SULF and ASO4](https://forum.cmascenter.org/t/cb6-mechanism-regarding-sulf-and-aso4/6264)
**Author:** [@kkkghs0828](https://forum.cmascenter.org/u/kkkghs0828)\ **Replies:** 4\ **Last updated:** [September 9, 2026, 7:06pm UTC](https://forum.cmascenter.org/t/cb6-mechanism-regarding-sulf-and-aso4/6264 "2026-09-09T19:06:08Z")
Hello everyone, I have a question about the CB6r5 mechanism, specifically regarding SULF and ASO4. 'EVERYWHERE', 'ALL', 'SULF', 'SULF', 'GAS', 0., 'UNIT', 'a', 'EVERYWHERE', 'ALL', 'SULF', 'ASO4', 'FINE', 1., 'MASS', … --- ## [WRF Configuration Studio is a browser-based configuration environment for the Weather Research and Forecasting Model](https://forum.cmascenter.org/t/wrf-configuration-studio-is-a-browser-based-configuration-environment-for-the-weather-research-and-forecasting-model/6270)
**Author:** [@whatheway](https://forum.cmascenter.org/u/whatheway)\ **Replies:** 1\ **Last updated:** [September 4, 2026, 5:03pm UTC](https://forum.cmascenter.org/t/wrf-configuration-studio-is-a-browser-based-configuration-environment-for-the-weather-research-and-forecasting-model/6270 "2026-09-04T17:03:46Z")
Website: WRF Configuration Studio v1.0.0 A Configuration Problem That Begins Before WRF Ever Runs The Weather Research and Forecasting Model is extraordinarily flexible, and that flexibility is one of the reasons it ha… --- ## [SMOKE v5.0: Missing Point Fire Emissions on Daily Runs / Log Analyzer Exit Priority Error](https://forum.cmascenter.org/t/smoke-v5-0-missing-point-fire-emissions-on-daily-runs-log-analyzer-exit-priority-error/6253)
**Author:** [@kruthika](https://forum.cmascenter.org/u/kruthika)\ **Replies:** 9\ **Last updated:** [August 26, 2026, 4:17pm UTC](https://forum.cmascenter.org/t/smoke-v5-0-missing-point-fire-emissions-on-daily-runs-log-analyzer-exit-priority-error/6253 "2026-08-26T16:17:36Z")
Hello, I am running SMOKE v5.0 to process point fire sectors (ptfire and ptagfire) for July and August 2015 using laypoint. I am primarily focused on August 2015. While my one time runs complete successfully without is… --- ## [Log\_analyzer flags routine Smkinven info messages as priority-1 in SMOKE v5.2.1](https://forum.cmascenter.org/t/log-analyzer-flags-routine-smkinven-info-messages-as-priority-1-in-smoke-v5-2-1/6271)
**Author:** [@a.zarrah](https://forum.cmascenter.org/u/a.zarrah)\ **Replies:** 4\ **Last updated:** [August 24, 2026, 8:17pm UTC](https://forum.cmascenter.org/t/log-analyzer-flags-routine-smkinven-info-messages-as-priority-1-in-smoke-v5-2-1/6271 "2026-08-24T20:17:35Z")
Hi All, Environment: -SMOKE v5.2.1 (Sep 2025 release), compiled with Intel ifx 25.0 -known\_messages.txt from an earlier SMOKE release (still shipped with the log\_analyzer package), probably? -Exit priority threshold:… --- ## [ComputeSiteDailyWeather for leap year](https://forum.cmascenter.org/t/computesitedailyweather-for-leap-year/6269)
**Author:** [@mkharkey](https://forum.cmascenter.org/u/mkharkey)\ **Replies:** 0\ **Last updated:** [August 17, 2026, 4:47pm UTC](https://forum.cmascenter.org/t/computesitedailyweather-for-leap-year/6269 "2026-08-17T16:47:17Z")
When I run ComputeSiteDailyWeather through FEST-C interface, with the dates are set to 240101-241230, it runs cleanly, but if I set the dates 240101-241231, the result is an invalid pointer error. There aren’t any issues… --- ## [generateBeld4Data/geo\_functions crash with gdal\_rasterize](https://forum.cmascenter.org/t/generatebeld4data-geo-functions-crash-with-gdal-rasterize/6254)
**Author:** [@mkharkey](https://forum.cmascenter.org/u/mkharkey)\ **Replies:** 6\ **Last updated:** [August 17, 2026, 4:32pm UTC](https://forum.cmascenter.org/t/generatebeld4data-geo-functions-crash-with-gdal-rasterize/6254 "2026-08-17T16:32:09Z")
I’m running generateBeld4Data through the FEST-C interface. It appears all the input files are read in correctly, but it’s failing in geo\_functions, even after I updated it per Raster Tool Error: error while loading shar… --- ## [CLDS PA outputs all zero?](https://forum.cmascenter.org/t/clds-pa-outputs-all-zero/6250)
**Author:** [@xuan](https://forum.cmascenter.org/u/xuan)\ **Replies:** 2\ **Last updated:** [August 13, 2026, 9:18am UTC](https://forum.cmascenter.org/t/clds-pa-outputs-all-zero/6250 "2026-08-13T09:18:18Z")
Dear all, I am running CMAQv5.5 with the Process Analysis ¶ module enabled. I am analyzing the output for a single grid cell, and I find that the following cloud‑related process variables (CLDS\_ASO4I, CLDS\_ASO4J, CLDS\_O… --- ## [MEGAN v3.2: How Should Ecotype Data Be Defined for Regional Applications?](https://forum.cmascenter.org/t/megan-v3-2-how-should-ecotype-data-be-defined-for-regional-applications/6267)
**Author:** [@bb404bb](https://forum.cmascenter.org/u/bb404bb)\ **Replies:** 1\ **Last updated:** [August 12, 2026, 3:15pm UTC](https://forum.cmascenter.org/t/megan-v3-2-how-should-ecotype-data-be-defined-for-regional-applications/6267 "2026-08-12T15:15:15Z")
Hello everyone, I am currently trying to use MEGAN v3.2. I have mostly understood the general workflow and am now able to generate BVOC emissions for use in the CMAQ model. However, I am still unclear about the Ecotype… --- ## [Building parallel CAMx using Intel OneAPI compilers and OpenMP on a shared memory Linux server](https://forum.cmascenter.org/t/building-parallel-camx-using-intel-oneapi-compilers-and-openmp-on-a-shared-memory-linux-server/6261)
**Author:** [@flyenz0](https://forum.cmascenter.org/u/flyenz0)\ **Replies:** 1\ **Last updated:** [August 6, 2026, 3:32pm UTC](https://forum.cmascenter.org/t/building-parallel-camx-using-intel-oneapi-compilers-and-openmp-on-a-shared-memory-linux-server/6261 "2026-08-06T15:32:24Z")
My first stop to find answers for SMOKE and CAMx questions is usually the CMAS forum, but this time I did not find any discussions about running CAMx in parallel mode using OpenMP. As a relatively new systems administrat… --- ## [Minor bug in TMPBEIS4](https://forum.cmascenter.org/t/minor-bug-in-tmpbeis4/6266)
**Author:** [@jvukovich](https://forum.cmascenter.org/u/jvukovich)\ **Replies:** 1\ **Last updated:** [August 6, 2026, 2:26pm UTC](https://forum.cmascenter.org/t/minor-bug-in-tmpbeis4/6266 "2026-08-06T14:26:23Z")
Need help running SMOKE? If so, first search existing topics under this category, and if your issue is new, post a new topic. PLEASE READ before posting Describe your issue in detail COMPUTE\_SEASON\_FUNCTION environment… --- ## [XREF problem with COMBO and fractional-profile entries](https://forum.cmascenter.org/t/xref-problem-with-combo-and-fractional-profile-entries/6251)
**Author:** [@DLyder](https://forum.cmascenter.org/u/DLyder)\ **Replies:** 5\ **Last updated:** [July 29, 2026, 9:20pm UTC](https://forum.cmascenter.org/t/xref-problem-with-combo-and-fractional-profile-entries/6251 "2026-07-29T21:20:22Z")
Hello Everyone, I am trying to run an annual pt script using the pre-compiled version of SMOKE (v5.1) and I am getting an error message that there is a problem in RDSREF in that there is both “COMBO” and fractional prof… --- ## [Airport Sector Availability in 2022 CRACMM Emissions](https://forum.cmascenter.org/t/airport-sector-availability-in-2022-cracmm-emissions/6187)
**Author:** [@kkkghs0828](https://forum.cmascenter.org/u/kkkghs0828)\ **Replies:** 11\ **Last updated:** [July 24, 2026, 5:15pm UTC](https://forum.cmascenter.org/t/airport-sector-availability-in-2022-cracmm-emissions/6187 "2026-07-24T17:15:20Z")
Hello, I have a plan to use the 2022 CRACMM chemical mechanism and have a question regarding the treatment of airport emissions. Whether the provided 2022 CRACMM emissions inventory includes a airport sector? I downl… --- ## [Submit your abstracts for AMS 2027 session on The Future of Atmospheric Total Deposition Monitoring and Modeling](https://forum.cmascenter.org/t/submit-your-abstracts-for-ams-2027-session-on-the-future-of-atmospheric-total-deposition-monitoring-and-modeling/6258)
**Author:** [@foley.kristen](https://forum.cmascenter.org/u/foley.kristen)\ **Replies:** 0\ **Last updated:** [July 22, 2026, 7:21pm UTC](https://forum.cmascenter.org/t/submit-your-abstracts-for-ams-2027-session-on-the-future-of-atmospheric-total-deposition-monitoring-and-modeling/6258 "2026-07-22T19:21:20Z")
On behalf of NADP’s Total Deposition Science Committee Abstract submissions are currently being accepted for the upcoming American Meteorological Society Conference on Atmospheric Chemistry. https://annual.ametsoc.org/… --- ## [2026 NADP TDep Webinar Presentation on Source and Sink Attributions from Satellites Using Deep Learning Models](https://forum.cmascenter.org/t/2026-nadp-tdep-webinar-presentation-on-source-and-sink-attributions-from-satellites-using-deep-learning-models/6257)
**Author:** [@foley.kristen](https://forum.cmascenter.org/u/foley.kristen)\ **Replies:** 0\ **Last updated:** [July 22, 2026, 7:18pm UTC](https://forum.cmascenter.org/t/2026-nadp-tdep-webinar-presentation-on-source-and-sink-attributions-from-satellites-using-deep-learning-models/6257 "2026-07-22T19:18:17Z")
2026 TDep Webinar Series NADP’s Total Deposition Science Committee invites you to our next TDep Webinar Series presentation: Thursday, August 27th, 12-1pm EDT (11am-12pm CT) Source and Sink Attributions from Satellite… --- ## [Disabling Plume Rise for Fire Sources from EQUATES in CMAQ 5.5](https://forum.cmascenter.org/t/disabling-plume-rise-for-fire-sources-from-equates-in-cmaq-5-5/6256)
**Author:** [@amirdudu](https://forum.cmascenter.org/u/amirdudu)\ **Replies:** 2\ **Last updated:** [July 22, 2026, 6:13pm UTC](https://forum.cmascenter.org/t/disabling-plume-rise-for-fire-sources-from-equates-in-cmaq-5-5/6256 "2026-07-22T18:13:03Z")
Hello Everyone, I want to run CMAQ 5.5 with EQUATES dataset. For this particular simulation that I am doing, I need to disable plumerise for all the fire sources. I was thinking about turning all the HFLUX values in the… --- ## [CMAQ-DDM saprc07tc species run error](https://forum.cmascenter.org/t/cmaq-ddm-saprc07tc-species-run-error/1303)
**Author:** [@a.kashfi73](https://forum.cmascenter.org/u/a.kashfi73)\ **Replies:** 16\ **Last updated:** [July 15, 2026, 9:00am UTC](https://forum.cmascenter.org/t/cmaq-ddm-saprc07tc-species-run-error/1303 "2026-07-15T09:00:42Z")
@sergey @lizadams Hi, I receive this error after trying run CMAQ DDM v5.2 for saprc07tc mechanism for my runs. \*\*\* ERROR ABORT in subroutine JAC on PE 001 ERROR: Number of species in Jacobian does not match N\_GC\_SPC. … --- ## [Mismatched projections in BELD4 data gen. step](https://forum.cmascenter.org/t/mismatched-projections-in-beld4-data-gen-step/6248)
**Author:** [@mkharkey](https://forum.cmascenter.org/u/mkharkey)\ **Replies:** 1\ **Last updated:** [July 14, 2026, 4:48pm UTC](https://forum.cmascenter.org/t/mismatched-projections-in-beld4-data-gen-step/6248 "2026-07-14T16:48:35Z")
Hello, I’m hoping to find some help with the BELD4 data generation part of the FEST-C model, version 1.4. I downloaded MODIS and NLCD data for 2011. Based on the log file (attached), there seems to be no issue reading/wo… --- ## [SMOKE test for California](https://forum.cmascenter.org/t/smoke-test-for-california/6245)
**Author:** [@mhdyasaman](https://forum.cmascenter.org/u/mhdyasaman)\ **Replies:** 2\ **Last updated:** [June 29, 2026, 6:26pm UTC](https://forum.cmascenter.org/t/smoke-test-for-california/6245 "2026-06-29T18:26:34Z")
I was able to successfully run the SMOKE test cases available on GitHub and Google Scholar. However, I would like to perform a test for California, preferably Southern California. I have downloaded several California emi… --- ## [SMOKE v5.3 Public Release](https://forum.cmascenter.org/t/smoke-v5-3-public-release/6247)
**Author:** [@huytran6583](https://forum.cmascenter.org/u/huytran6583)\ **Replies:** 0\ **Last updated:** [June 26, 2026, 8:35pm UTC](https://forum.cmascenter.org/t/smoke-v5-3-public-release/6247 "2026-06-26T20:35:47Z")
We are please to inform the release of SMOKE v5.3 to the community. Updated SMOKE Core Programs Smkinven Fix issue when processing hourly inventory data (PTHOUR) in leap year where emissions records are missing for th… --- ## [CMAQ v5.5 crashes on Day 2 with OPACONC error and “Invalid file name argument CTM\_CONC\_1](https://forum.cmascenter.org/t/cmaq-v5-5-crashes-on-day-2-with-opaconc-error-and-invalid-file-name-argument-ctm-conc-1/6243)
**Author:** [@oraya](https://forum.cmascenter.org/u/oraya)\ **Replies:** 2\ **Last updated:** [June 25, 2026, 8:27am UTC](https://forum.cmascenter.org/t/cmaq-v5-5-crashes-on-day-2-with-opaconc-error-and-invalid-file-name-argument-ctm-conc-1/6243 "2026-06-25T08:27:15Z")
Hi everyone, I am running CMAQ v5.5 on an HPC cluster. The simulation period is April 2026. I originally had a MEGAN-related issue, but after fixing the restart configuration the model is now able to complete Day 1 su… [Next page](https://forum.cmascenter.org/latest.md?page=1)