Looking at the speed (wheel/wind) graph in Isaac I've deduced that if wind speed extends above the wheel speed in blue that it is a head wind.
If the wind is blue below the wheel speed line it was a tail/back wind.
I'm confused by the figures at the bottom of the screen. Riding into a head wind it shows Speed 14.1 mi/h, Wind 20.2 mi/h. Blue wind speed graph was above the wheel speed graph.
I know I was riding at 14.1mi/h (wheel speed) into a head wind but it wasn't a 20.2mi/h head wind.
What are these figures telling me?
Do I calculate wind speed as 6.1 mi/h? ie 20.2 - 14.1?
Understanding Isaac wind speed.
Re: Understanding Isaac wind speed.
You correctly answered your own question
Ground wind speed is the difference between total wind speed (20.2) and total bike speed (14.1)
Ground wind speed is the difference between total wind speed (20.2) and total bike speed (14.1)
John Hamann