Hi Ray, FYI- The youtube video (posted link reference) is a poor resolution version. It is worthless (for detail analysis). Either their source reference or their youtube upload resolution settings were set so the original footage fidelity was lost.
There is a much higher resolution video feed (in hi-def) that is a significant difference. To do forensics on the shower of bubbles emanating from the ground surface it is optimal with a full 27" true color GPU based display, 2560 x 1440 resolution & 32-Bit true Color (each pixel is stored in 4 bytes: ARGB8888 standard). The water level was about 4 feet deep (900ft at ES height at time of imaging - 896ft elevation at the road/soil level). You can see the dirt road under the semi-occluded water. You can see the origin of the bubble froth burst start in a smaller diameter condition at the soil surface depth. As the bubble froth cluster moves upward to the surface, it spreads like a cone. When it breaks the surface it spreads into a wide dispersal pattern.
These two images show the resolution difference between what you posted and a higher def resolution source. I don't know how this looks on non-high end display systems, but the difference is very stark with a good GPU & display system.
Here's the Low Resolution (from youtube link in post):
Here's a High Resolution (from hi-def source):
This image shows soil surface & road in front of the Emergency Spillway.
? bad links in first two images ?
I disagree.
Around the 28 second mark a similar sun glint can be seen at the gates.
The glint at the weir appears simultaneously with the camera’s aperture opening up.
The “bubbles” at the beginning of the video are a shorter snip of extended view at 8:58. Note the angle of the “bubbles”, lower left to upper right. At 9:26 note the shadows cast by the trucks, the same diagonal.
The only time “bubbles” appear is when facing toward the sun, never with the camera’s back to the sun. You can see the orb of the sun in the reflection.
By the way when I view the youtube it is not blurry as in the first picture but focused as in the second.