# Convert CMAQ output to vertical column density with the unit of molec/cm2

**URL:** <https://forum.cmascenter.org/t/convert-cmaq-output-to-vertical-column-density-with-the-unit-of-molec-cm2/1554>\
**Category:** CMAQ\
**Created:** [June 6, 2020, 8:36pm UTC](https://forum.cmascenter.org/t/convert-cmaq-output-to-vertical-column-density-with-the-unit-of-molec-cm2/1554 "2020-06-06T20:36:43Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Ryan](https://avatars.discourse-cdn.com/v4/letter/r/a8b319/32.png) [@Ryan](https://forum.cmascenter.org/u/Ryan)\
**Post date:** [June 9, 2020, 3:04pm UTC](https://forum.cmascenter.org/t/convert-cmaq-output-to-vertical-column-density-with-the-unit-of-molec-cm2/1554/22 "2020-06-09T15:04:46Z")

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Hi Christian,  
Thanks for pointing it out. I will use CMAQv5.3.1 to do the simulation. Thanks!

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