Subject: Another death on Overland Track
icefest wrote:Wind chill is a function of the temperature difference between body temperature and wind speed.
This means that the same wind increase at a lower temperature lowers the apparent temp by more than if it were warmer.
Of course this is simplified, there's a lot more to it. Tell me if you want a more complicated or simplified answer.
To be honest, I prefer the australian apparent temperature index.
Ta is dry bulb temerature,
e is the vapor pressure
ws is wind speed at 10m.
It works better at around 0, and takes into account humidity. (More saturated air feels warmer as you have less evaporative cooling)
