On Vegetation modification sensitivity experiments in WRF-4.7.1 with 61-class LCZ

[omoakinyoola73]

Dear WRF community,
I am conducting high-resolution urban climate simulations using WRF-4.7.1 with a 61-class LCZ-based land-use configuration for an African coastal city.
I would like to assess urban greening as a heat-adaptation strategy using Green Vegetation Fraction(GVF) sensitivity experiments (20%, 30%, 50%, and 75%), similar to those reported in “Toward a climate-resilient desert, coastal city…" Redirecting
I would appreciate guidance on the correct implementation. Specifically:

• Should GVF be modified in geo_em, met_em, or wrfinput?
• Which variable should be modified (VEGFRA, LANDUSEF, or another field)?
• Do the 20–75% scenarios represent absolute GVF or increases relative to the control?
• How can GVF be modified while preserving the existing LCZ/urban morphology?

In my current wrfinput, VEGFRA is populated, but FRC_URB2D is zero, so I want to ensure I use the physically appropriate variable and methodology.
If anyone has implemented a similar GVF/LCZ sensitivity experiment, I would greatly appreciate any advice, example workflow, or script.


Best regards,
Julius Akinyoola