# Using SMOKE to create annual emissions maps

**URL:** <https://forum.cmascenter.org/t/using-smoke-to-create-annual-emissions-maps/4981>\
**Category:** SMOKE\
**Created:** [June 7, 2024, 5:48pm UTC](https://forum.cmascenter.org/t/using-smoke-to-create-annual-emissions-maps/4981 "2024-06-07T17:48:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![fher461](https://avatars.discourse-cdn.com/v4/letter/f/4491bb/32.png) [@fher461](https://forum.cmascenter.org/u/fher461)\
**Post date:** [June 7, 2024, 5:48pm UTC](https://forum.cmascenter.org/t/using-smoke-to-create-annual-emissions-maps/4981/1 "2024-06-07T17:48:13Z")

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I would like to use SMOKE to input annual emissions and allocate them to grid cells using the spatial surrogates. My goal is to create a gridded netcdf file of emissions without using temporal. Is this possible with grdmat and merge? I looked at some of my intermediate netcdf files but they were not distributed on the model grid (they have multiple rows and one column).

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**Author:** ![eyth.alison](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@eyth.alison](https://forum.cmascenter.org/u/eyth.alison)\
**Post date:** [June 10, 2024, 9:32pm UTC](https://forum.cmascenter.org/t/using-smoke-to-create-annual-emissions-maps/4981/2 "2024-06-10T21:32:04Z")

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This is possible with smkinven, grdmat, and smkmerge. The MRG\_TEMPORAL\_YN and MRG\_SPCMAT\_YN environment variables will need to be set to N when running smkmerge for this to work. If you are using the platform scripts you will likely need to change the values of those environment variables in the run scripts and set the spcmat and temporal steps to N in the run\_settings file.

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**Author:** ![fher461](https://avatars.discourse-cdn.com/v4/letter/f/4491bb/32.png) [@fher461](https://forum.cmascenter.org/u/fher461)\
**Post date:** [August 26, 2024, 5:39pm UTC](https://forum.cmascenter.org/t/using-smoke-to-create-annual-emissions-maps/4981/3 "2024-08-26T17:39:53Z")

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This worked for me. Though, the output didn’t go in the normal output file, instead it went into (for example for area sources) $REPORTS/$ASCEN/static/ag.$SRCABBR.$GRID.$FYIOP.ncf as specified in the setmerge\_files.scr file in the assigns folder. Thank you!