# CMAQ-DDM for SOA

**URL:** <https://forum.cmascenter.org/t/cmaq-ddm-for-soa/4582>\
**Category:** CMAQ-DDM-3D\
**Created:** [December 16, 2023, 5:04pm UTC](https://forum.cmascenter.org/t/cmaq-ddm-for-soa/4582 "2023-12-16T17:04:31Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lotso](https://avatars.discourse-cdn.com/v4/letter/l/94ad74/32.png) [@lotso](https://forum.cmascenter.org/u/lotso)\
**Post date:** [December 16, 2023, 5:04pm UTC](https://forum.cmascenter.org/t/cmaq-ddm-for-soa/4582/1 "2023-12-16T17:04:32Z")

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I would like to ask, is it possible for CMAQ to use DDM resolution to get the sensitivity of SOA ? If so, how do I set the species in my sensinput file? Thanks a lot.

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**Author:** ![sergey](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@sergey](https://forum.cmascenter.org/u/sergey)\
**Post date:** [January 16, 2024, 2:27pm UTC](https://forum.cmascenter.org/t/cmaq-ddm-for-soa/4582/2 "2024-01-16T14:27:45Z")

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Yes - its possible to calculate sensitivity of SOA species. Configuration of the sensinput file depends on your specific application. Refer to the documentation provided - specifically the DDM-3D chapter.

Sergey+