4 ms·
One thing a lot of people don't take into account is that roads and un-shaded rock can increase perceived temperature by 10-20 degrees. I used to work as a rock
by foxyv 3y ago
One thing a lot of people don't take into account is that roads and un-shaded rock can increase perceived temperature by 10-20 degrees. I used to work as a rock climbing instructor and the top of the rock would be over 120F. Same for roads, which makes road construction particularly dangerous.
For a while I worked weekends at the race track, all of the drunk people would drop like flies if it went over 100F. The pavement temperature was 150F+. It was like standing on a griddle. You could feel the radiated heat trying to cook your skin.
- LorenPechtel 3y agoEven without introducing things like roads I have found it infeasible to get a reasonable air temperature measurement while hiking--something could probably be 3D printed but I don't have one. Garmin, what possessed you to make a *black* temperature sensor? And provide no proper sun shield for it? (Although I'm not sure how effective a sun shield would be. I've got a thermometer in the back yard that is inside a manufacturer's sun shield--vented white plastic--and it still can report 15 degrees above actual even though it's under a tree.) Even putting it something like an inch deep in my pack has produced readings of 90+ when hiking away from the sun for an extended period.
- foxyv 3y agoThis is because temperature is complicated. If you want to measure the air temperature you need to isolate from other systems like the 5770K fusion explosion in the sky and the 70-80C ground. (The Sun is constantly trying to reach equilibrium with the earth and would happily burn us to a cinder except we are re-radiating that energy back into space.) Typically measurements are taken in shaded, well ventilated areas, 5 feet off of the ground. If you want your Garmin to take a valid measurement, place it on a string, 5 feet from the ground, in a shaded area for 5-10 minutes.
- LorenPechtel 3y agoWhich is completely useless when you're on the move.
- foxyv 3y agoIt's just physics unfortunately. You might be able to use an IR camera to take a "Picture" of the ambient temperature and kind of take a stab at guessing, but a simple thermocouple is never going to be able to do what you are asking of it. However, that won't stop Garmin from selling one to you!