This doesn't seem to be mentioned in the article, but an important related concept is delta-t, which is the dry-bulb temperature minus the wet-bulb temperature.

This doesn't seem to be mentioned in the article, but an important related concept is delta-t, which is the dry-bulb temperature minus the wet-bulb temperature. It varies roughly inversely with relative humidity. It's a particularly important metric for farmers/growers who use pesticide spray, as it influences the way the spray behaves when released from the applicator. If the delta-t is too high, the spray droplets will evaporate too fast, before they land on the plant. Whereas if it's too low, it can remain in droplet form for too long, which can reduce plant uptake, and in combination with other factors (particularly thermal inversions and wind) can lead to spray drift onto other crops, which can be hugely damaging. https://www.cropsmart.com.au/using-delta-t-for-assessing-spray-conditions/ https://www.cropsmart.com.au/using-delta-t-for-assessing-spr...