What is this? Satelite imagery/radar experts?

Question

imagery loop:

http://www.ssd.noaa.gov/goes/west/epac/loop-vis.html

picture breakdown:

http://www.abovetopsecret.com/forum/thread362273/pg2

Answer 1

It's the shift between daytime and nighttime gain on the camera.  You can see the sunrise more clearly on this image from the wide-field GOES image at the same time.  Note that the break in the image you link to is in the same place in the image linked below.

Edit:  Wait, you are asking about the ring, not the bright line right?  Here are some better images:

http://www.atmos.washington.edu/cgi-bin/...

Step through the images from Jun-10 starting at about 1600 UTC looking at the region at 15N 115W approximately.  Several times before the "ring" in the 1730 UTC image you can see ring-like cloud structures.  What is confusing is that in the 1700 UTC image, there is a bit of sun glint that is well away from the ring clouds at 10N 110W and your eye gets drawn to it so you don't see the clouds at 15N 115W.  But the cloud ring is still there at 1700 UTC.  So what you are seeing is sun reflecting off the ring of clouds.  There isn't anything else out there.