Reagen Desilets (reddesilets)

Air and its Layers

Air is invisible, but its molecules scatter sunlight to produce the sky’s blue colour. While cloud droplets are also colourless, when large masses of droplets reflect incoming light they create clouds that seem white, grey or almost black. Cloud patterns are monitored from satellites and meteorologists interpret them to track weather.

crystaluniverse76

Sinabung volcano on the island of Sumatra has been erupting for years. Here’s a large ash cloud it sent out in mid-June..

sinarisaa

Amazing Iceberg

Icebergs sometimes are lined. When glaciers flow, they can pick up and carry sediment with them and stretch it into long, thin bands formed where two glaciers meet (http://tmblr.co/Zyv2Js10MmSTx).

Those lines of dark ice can endure even when glaciers reach the sea – dark, sediment-rich layers alternating with cleaner, almost-pure ice layers.

rastawhiteshepherd

THE FIRST CLIFF DOG WALK🤣

Yes, her name was Cinamon Hadley, and she was a friend of Mike Dringenberg, the artist, who borrowed her face and look for Death.

Your Fault of the Week

NASA has again provided us with an image that should find itself in all future structural geology texts: this one of the Piqiang Fault within the Tien Shan mountains of China. Structural geologists in the crowd, this is for you…

Warm Arctic, Nasty North America

In recent years, North America has been hammered by severe winter weather. A few years ago, scientists at NOAA developed a “Winter weather misery index” called the Accumulated Winter Season Severity Index (AWSSI), which takes into account all the features of winter weather such as how much snow has fallen, the depth and extent of extreme cold snaps, and how long it has been since the last fall temperatures. Using recorded weather data from several dozen weather stations around the U.S., the scientists who created the index were able to characterize what a mild winter was at a certain location compared to an extreme winter, and the range in-between.