Notes On Sunrise Light, Live From Uruguay

Learn about the different kind of light present before, during and after sunrise. Video filmed live on the beach in Punta Del Este, UruguayShow more

SOME METER MEASUREMENT NOTES ON SUNRISE: I go over the changes in spectrum, lux, color temperature and UV strength. (I’m sorry it’s windy and I didn’t prepare but am just talking off the cuff. I’ll make a more concise video later as well as one for sunset)
Interesting points from sunrise....
*more red than blue before sunrise. Blue spike at sunrise. Blue catches up to and equals red shortly after sunrise. Shortly after that green pops, the color spectrum fills up and colors roughly balance one another. Color temperature stabilizes for a while.
*LUX blows up like bitcoin. Goes from about 140 shortly before sunrise to 4000 shortly after sunrise and 100,000 an hour-ish after sunrise.
*UV is not measurable before, at and shortly after sunrise. It starts to gain power slowly about 20 minutes after sunrise but even then it’s not much. An hour after sunrise I measured 0.2 on the uv meter which translates to a UV index of ZERO on the d minder app. So when your dermatologist tells you to put sunscreen on in the early morning, ask them if they even know why they are saying that nonsense. Ask if they’ve ever bothered to measure uv. Smh.
*COLOR TEMP: Color temp varies by thousands of kelvin depending on where you point your spectrometer at. If you point it directly at the sun, the color temperature is lower (by a couple thousand k or more) than if you point it at the sky. So this can explain the confusion around the various color temp readings of sunrise and sunset. My meter was pointed just a bit in between the sun and the sky. Either way we see color temp going up a couple thousand from shortly before to shortly after sunrise. It’s mostly red prior to sunrise, a burst of blue but not as much as red at sunrise, then everything starts to balance out after.
***all of this will change some depending on your latitude and season