How it is solved and what to trust
Wind is solved with a lattice-Boltzmann flow model on two planes: a plan view at 2 m and a vertical cut along the wind. The vertical cut uses a mixing-length turbulence model with a log-law ground, and the crop and tree row act as porous drag. The plan view takes its shelter from the vertical cut.
Fully turbulent wind scales with speed, so changing the wind speed rescales the solved field instantly. Changing direction, crop or trees re-solves it, which takes a few seconds.
Runoff uses a shallow-water flood model with Manning friction and Horton infiltration. Satellite elevation is far too coarse for in-field relief, so the twin keeps its regional slope and adds field micro-relief from the levelling setting. A drone survey would replace both.
Spray drift follows droplets through the solved wind with turbulent mixing and settling. Evaporation is not modelled, so in hot, dry air fine sprays drift further than shown.
Treat the numbers as a guide for comparing choices on one field, not as measurements.
Imagery: Esri, Maxar, Earthstar Geographics. Elevation: AWS Terrain Tiles (SRTM). Weather: Open-Meteo.com (CC BY 4.0).