Showing posts with label Säkylä. Show all posts
Showing posts with label Säkylä. Show all posts

Thursday, July 25, 2024

Magnificient Cumulus cloud



I was driving regional road 204 to Säkylä and it was raining quite heavily, but then I entered this opening and all of the sudden sun was shining brightly. I saw with my left that there was this tall cumulus cloud, kind of like mushroom cloud, but all white. 




Cumulus clouds are low-level clouds characterized by their distinct puffy, cauliflower-like appearance. They form due to localized convection, where warm, moist air rises, cools, and condenses into visible water droplets or ice crystals. 



The highest cumulonimbus clouds, which are a more intense type of cumulus cloud associated with thunderstorms, can reach peaks of up to 12,000 meters (39,000 feet) or even higher. So, while cumulus clouds themselves are generally found at lower altitudes, their more powerful cousins can soar to impressive heights

Monday, October 24, 2022

Driving in Twilight



Today was my "first" drive from my new house to work. As I left from home the sun was about to rise above horizon. The stage of sunrise known as false sunrise actually occurs before the Sun truly reaches the horizon because Earth's atmosphere refracts the Sun's image. At the horizon, the average amount of refraction is 34 arcminutes, though this amount varies based on atmospheric conditions.


Also, unlike most other solar measurements, sunrise occurs when the Sun's upper limb, rather than its center, appears to cross the horizon. The apparent radius of the Sun at the horizon is 16 arcminutes.





These two angles combine to define sunrise to occur when the Sun's center is 50 arcminutes below the horizon, or 90.83° from the zenith.



My other blogs:

Roadscape Photography
Chevrolet El Camino 1970
Life @ Loimaa, mostly Finnish