25 August 2010
Posted by Dave Petley
You probably guessed that I am on holiday this week (normal service will be resumed at the weekend), but I thought I’d quickly post this new debris flow video from Hunza in Pakistan. The interesting but starts at about 1 minute 15 seconds:
Dave Petley is the Vice-Chancellor of the University of Hull in the United Kingdom. His blog provides commentary and analysis of landslide events occurring worldwide, including the landslides themselves, latest research, and conferences and meetings.
Just look at the size of boulders being washed away like tennis balls….wow the might of nature!In a short period of about 13 days (28th July to 11 aug) there were 29 recorded flash floods in Chitral with some flash floods repeating in same place.Over 114 bridges were washed away/destroyed in Gilgit Baltistan province in past 15 days.Nature has been pretty rough on Pakistan. What will the present Pakistan floods be ranked as: 500 year flood?
Just watching the video gives me goosebumps… When will this end? 🙁 The people of Pakistan really need everybody's help…
wow.. pretty much the flow of a solid..
Looks like all the big boulders came down in front of the mud flow. I wouldn't have expected that.
That was fantastic. It is one of the best debris flow films I have seen as it captures the floating of big rocks by debris flow not clear water flooding.
This isn't a wet flow ie with water or mud, people. This is a debris flow. It is boulders, rocks, gravel and grit, nothing more. There is NO WATER CONTENT in this flow – which makes it even more fascinating. A dry flow of solids, a debris flow. Just because there has been flooding in other parts of Pakistan, don't confuse it with water-related flows.On another point – where are the women, for goodness sake? Their absence is shocking. So much for equality for all – I guess it is still to happen in that part of the world. I'm just glad to be a a woman in the west…
Sept. 1 Anonymous, you are mistaken. A debris flow is defined as a flowing mix of debris and water. The water/debris ratio can vary widely, but there is always water present, this flow included.