Thursday, May 10, 2007

Video of flash flood

Here is a great video of a flash flood in Thompson Canyon, which is in Utah and very near these outcrops. This particular video was shot by Doug Jerolmack last summer. I found this on Paul Heller's website, which is a great resource for videos of clastic sedimentation.



Note the debris-rich front of the flow, full of twigs, sticks, and other stuff (pause at 00:19). After some time, the debris-poor part of the flow comes through.

Pause at 00:34 and note the levee of woody debris that has formed on the edge of the flow. This is a defining characteristic of these types of flows and help keep it going by providing additional confinement.

At 00:43-00:47 (end of footage) note the standing wave that has formed.

3 comments:

Divalent said...

I was unable to get the video to play. And when I double clicked on the video to see it at the You-Tube web site, I got a message that said

"This is a private video. If you have been sent this video, please make sure you accept the sender's friend request."

Brian said...

you can get it here...you can either view it or download it

http://faculty.gg.uwyo.edu/heller/sed_video_downloads.htm

Brian said...

I just realized that the times I note above are if the video is counting up...if it is counting down, then the times are 00:28, 00:13, and last couple seconds for the standing wave