Dwight, dead on! Man, you guys are brilliant when it comes to sciences. This forum covers pretty much the entire array of PhD to field-based experienced gurus. This is where historical data from NOAA comes in handy, as well as some Almanac info, since Texas is a bit behind on their information updates. Once the info get tabulated, you then utilize 4 equations to calculate for the speed of transevaporation. Unfortunately, it has to be done by hand. This is where calculus comes in handy.
I am sure Maple could handle it. I know a professor that used Maple to solve five equations, five unknowns for his 8 yr son's pine wood derby car to make sure the weight balance was correct.
