Климат, лед, вода, ландшафты

Climate, ice, water, landscapes

Рудой Алексей Николаевич

Catastrophic detachment and high-velocity long-runout flow of Kolka Glacier. Сёрджи Колки на Кавказе


Catastrophic detachment and high-velocity long-runout flow of Kolka Glacier, Caucasus Mountains, Russia in 2002

© Stephen G. Evans a,⁎, Olga V. Tutubalina b, Valery N. Drobyshev c, Sergey S. Chernomorets b,Scott McDougall d, Dmitry A. Petrakov e, Oldrich Hungr f,

 a, Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1. b University Centre for Engineering Geodynamics and Monitoring, Akademika Kapitsy St. 30-1-110, 117647, Moscow, Russia. c Vladikavkaz Scientific Center, Russian Academy of Sciences and Government of the Republic of North Ossetia-Alania, Kosta Av.935, 362008, Vladikavkaz, North Ossetia-Alania, Russia
d BGC Engineering Inc., Suite 500-1045 Howe Street, Vancouver, British Columbia, Canada V6Z 2A9. e Faculty of Geography, Moscow State University, Leninskiye Gory, 119991, Moscow, Russia.f Earth and Ocean Sciences, University of British Columbia, 6339 Stores Road, Vancouver, British Columbia, Canada V6T 1Z4Geomorphology

A r t i c l e i n f o & a b s t r a c t 

Article history:
Received 21 December 2007
Received in revised form 14 October 2008
Accepted 15 October 2008
Available online 26 October 2008
 

Keywords:
Glacier hazards
Glacier-debris flow
Modeling
Caucasus Mountains
Glacier instability
In September 2002, a catastrophic geomorphic event occurred in the Caucasus Mountains, southern Russia, in which almost the entire mass of Kolka Glacier detached from its bed, accelerated to a very high velocity (max. 65–80 m/s), and traveled a total distance of 19 km downstream as a glacier-debris flow. Based on the interpretation of satellite imagery obtained only 8.5 h before the event occurred, the analysis of seismograms from nearby seismic stations, and subsequent detailed field observations and measurements, we suggest that this remarkable event was not a response to impulse loading from a rock avalanche in the mountainside above the glacier, or to glacier surging, but due entirely to the static and delayed catastrophic response of the Kolka glacier to ice and debris loading over a period of months prior to the September 20 detachment. We reconstruct the glacier-debris flow using field observations in conjunction with the interpretation of seismographs from nearby seismic stations and successfully simulate the behaviour (runout, velocity, and deposition) of the post-detachment glacier-debris flow using a three-dimensional analytical model. Our demonstration of a standing-start hypothesis in the 2002 Kolka Glacier detachment has substantial implications for glacier hazard assessment and risk management strategies in valleys downstream from unstable debris-covered glaciers in the mountain regions of the world.
© 2008 Elsevier B.V. All rights reserved.

geomor_author_copy.pdf

03.04.2011 13:51 2732
 

Комментарии  

 
#134 Beats Monster 26.10.2014 07:37
Hi there, I found your website via Google while looking for a
comparable matter, your web site came up, it seems to be good.
I have bookmarked it in my google bookmarks.

Hi there, simply changed into aware of your weblog thru Google, and located that it's truly informative.
I'm gonna watch out for brussels. I will be grateful should you proceed this in future.
Numerous folks shall be benefited from your writing.

Cheers!
Цитировать
 
 
#133 www.veja.org 26.10.2014 04:05
Hi there, this weekend is nice for me, as this moment i am reading this great educational paragraph
here at my home.

Feel free to surf to my webpage - mentenanta it [www.veja.org: http://www.veja.org/modules.php?name=Your_Account&op=userinfo&username=OQXM]
Цитировать
 
 
#132 phan mem quan ly kho 25.10.2014 17:33
What's up everyone, it's my first pay a visit at this site, and
piece of writing is in fact fruitful designed for
me, keep up posting such content.

My webpage :: phan mem quan ly kho: http://thanhsoft.net
Цитировать
 
 
#131 mentenanta it 25.10.2014 17:16
Thanks for some other wonderful post. The place else may anyone get that type
of info in such an ideal way of writing? I have a
presentation next week, and I am on the search for such info.
Цитировать
 
 
#130 phan mem 25.10.2014 13:52
Heya i'm for thhe first time here. I came across this board and I find It reakly useful & it helped me oout much.

I hope to give something back and help others likje you
aided me.

my website: phan mem: http://thanhsoft.net
Цитировать
 
 
#129 Meagan 25.10.2014 05:11
Hello! I could have sworn I've been to this website before but after checking through some of thhe post I
realized it's new to me. Anyways, I'm definitely glad I found it and I'll bbe bookmarking and
checking back often!
Цитировать
 
 
#128 best hacking news 25.10.2014 04:42
I am really glad to glance at this weblog posts which consists of tons of helpful
data, thanks for providing these statistics.
Цитировать
 
 
#127 エプロンドレ 24.10.2014 23:38
Pretty! This was an extremely wonderful post. Thanks for supplying these details.


Also visit my web blog エプロンドレス: http://www.event-is.net/エプロン-japan-6.html
Цитировать
 
 
#126 人気 子供用パ 24.10.2014 17:47
Hello There. I found your blog using msn. This is
a really well written article. I'll be sure to bookmark it and come back to read more of your useful info.

Thanks for the post. I'll certainly comeback.

Look into my blog post; 人気 子供用パジャマ: http://www.lobdellsoc.com/category-jp-3
Цитировать
 
 
#125 Clash of kings cheat 24.10.2014 04:29
Do you mind if I quote a few of your posts as long as I provide
credit and sources back to your blog? My blog site is in the exact same niche as
yours and my visitors would really benefit from a lot
of the information you provide here. Please let me
know if this alright with you. Thanks a lot!


Here is my web blog ... Clash of
kings cheat: https://Www.Youtube.com/watch?v=8bgorbflgT4
Цитировать
 

Добавить комментарий


Прощай мой дом

JavaScript is disabled!
To display this content, you need a JavaScript capable browser.

О проекте

Всё об удивительном и загадочном мире льда и ледников, ландшафтов и людей и их жизни. Всё о планете Земля и о других планетах.

Интересы: снег, вода, горы, лед, катастрофы, все, климат, рельеф, ледники, приледниковые озёра, геоморфология, гляциология, новые теории и проекты в гляциологии, геологии и геоморфологии, а также качественная музыка и всё интересное и в науке, и в экспедициях, что сочтут для себя важным участники проекта, в природе и в жизни.. ....в общем всё.

Наши новости
Текущая информация для студентов
Ключевые слова
Авторизация



logotipЧитателям, слушателям и просто прохожим: сайт и все материалы, опубликованные на нём -  интеллектуальная собственность владельца сайта, и/или авторов соответствующих материалов. Ссылки на сайт, а также ссылки на авторов публикаций,

trudovaslava.info

(и фотографий, разумеется, тоже) обязательны. Соответствующие законы РФ и других стран известны, лицензии - на месте. Воруют, конечно, и не взирая на копирайты, но мы создали сайт для порядочных людей. Не хочется об этом напоминать, но факт любой недобросовестной ссылки-цитирования или пересказа, во- первых, будет предан широчайшей огласке через сеть всеми популярными научными каналами. А далее, возможно, последует и во-вторых..... Спасибо.

Контакты: ran@mail.tomsknet.ru