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Minimum updraft helicity for storms in the Southern Hemisphere

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New member
Hi, all.

I recently started to run WRF for a domain in the Southern Hemisphere, and I'm interested in generating the minimum (considering that cyclonic vorticity is negative below the equator) updraft helicity for every output file generated. I know that I can activate the nwp module in my namelist.input to compute the max UH. The question is, is there is an easy way to implement a similar code to the nwp module but to compute the minimum UH?
i guess you can follow the approach for "up_heli_max" calculation and output to obtain minimum UH and output it in diagnostic package.