Niagara fluid (Gas3D emitter) snap to landscape / change z pos

Development Asset Creation
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Hello. I am working on a fire sim using a niagara system built from 2 emitters. One is a NeighborGrid used for spread, which then feeds position/temperature/density data into a gas3d emitter, which then feeds wind vector data back into the spread emitter.

My question is how can I change the z position of the gas emitter so it hugs the terrain like the spread emitter does?

I can post further details for those curious.

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Figured it out. Had to set an offset in my c++ terrain scanner/texture RT script and apply it to the local pivot Z of the gas emitter.