View allAll Photos Tagged contrails
they linger for many hours, spread and make whispy patterns..here it appears the new contrails are below the old one...
Lovely spring day today and the sky was full of contrails - this was another go at contrails behind out-of-focus branches, after I'd looked at the first one
Persistent contrails, "Chemtrails" a US military pharmaceutical complex project that is destroying all living things on the planet. Our tax dollars at work.
The number of contrails in the sky was impressive, but I don't recall really seeing the planes that made them, or hearing them overhead! Sure made for a pretty shot, though!
Contrail of Delta IV Heavy rocket shortly after lift-off from Vandenburg Air Force Base in California on August 28. First we were curious if the rocket would be visible through the morning fog. Then just after lift-off time, the fog began to clear. I was curious about the abrupt upper end of the contrail until several days later when I read my favorite weatherman, John Lindsey, who explained in detail: www.sanluisobispo.com/2013/09/01/2661777/why-rockets-cont... The short version: the rocket's exhaust or steam condenses into the narrow, white cloud behind the rocket. These "condensation trails or contrails" disappear quickly if the relative humidity around them is low and can last longer if the relative humidity is high. According to weather balloons launched before the rocket, relative humidity was high close to the earth, but there was a serious decrease in relative humidity at about 12,000 feet altitude which allowed the contrails to disappear quickly there while the lower contrail remained. See his article for the whole, well-written story.
Seen from Port San Luis, San Luis Obispo Co., CA
Another find while driving today. An airplane passed overhead, its contrail casting a shadow on the thin cloud layer below.
Like the last one, this was shot from the car while stopped at an intersection. The diagonal line extending down from the sun is, I believe, a sun pillar-like effect in the trails left by the windshield wipers.
Also: Unless I'm mistaken, you can just barely see the edge of a halo in the feathery clouds at bottom center. It's the slight reddening.
Atmospheric Optics has a good diagram on how contrail shadows work:
"Surfer Contrail" ... Wow! Another underwater surf shot from Sunday. Check out that churn of bubbles, and that tubular wake leftover from a surfer passing just over me! Pure Magic!! Taken on my Canon 5DSr with an EF 24mm F2.8 IS lens in a flat port on my Aquatech surf housing. Filed under Underwater ift.tt/2aoWyuQ