Google
Official Google Earth Download Site

Google Earth Community
You are not logged in. [Login] Entrance · Main Index · Search · Active Topics
New user · Who's Online · FAQ · KML Reference · GE Guide

Earth Moderated >> Environment and Conservation (Moderated)
Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  

Jump to first unread post. Pages: 1 | 2 | 3 | (show all)
LraeAdministrator
Master Wizard


Reged: 02/26/03
Posts: 4826
Loc: GooglePlex
Re: Permafrost melting: Retrogressive Thaw, Yukon [Re: kingpointnorth]
      #1138776 - 03/25/08 12:30 PM

View in Google Earth         View in Google Maps (207 downloads)

Kingpoint,
Just thought you might like to try another way of displaying your images.

Photo Overlay. Zoom into the image.

--------------------

Post Extras: Print Post   Remind Me!   Report this Post  
LraeAdministrator
Master Wizard


Reged: 02/26/03
Posts: 4826
Loc: GooglePlex
Re: Permafrost melting: Retrogressive Thaw, Yukon [Re: kingpointnorth]
      #1138781 - 03/25/08 12:38 PM

This KMZ doesn't seem to work.

--------------------

Post Extras: Print Post   Remind Me!   Report this Post  
kingpointnorth
Tourist


Reged: 10/27/07
Posts: 10
Re: Permafrost melting: Retrogressive Thaw, Yukon [Re: Lrae]
      #1143700 - 04/02/08 01:42 PM

Hi Lrae,

That is exactly what I needed/wanted to do. Thanks for showing me. I am new to the practice of adding overlays to GE so your help is very much appreciated. Many thanks!!

Kingpoint

Post Extras: Print Post   Remind Me!   Report this Post  
jean_thie
Cartographer


Reged: 12/06/06
Posts: 96
Loc: Ottawa, Canada
Re: Permafrost melting: Retrogressive Thaw, Yukon [Re: Lrae]
      #1146251 - 04/06/08 06:19 PM

View in Google Earth         View in Google Maps (125 downloads)

Hi Kingpoint. Your picture of the Bonnet Plume River permafrsot slide is really excellent and provides a good indication of active slide areas as well as vegetation cover. The area was burned between 2000 and 2004 according to fire history records.

I looked again at some old photographs from the national Air Photo Library collection in Ottawa. Below are some examples. The coverage started in 1949, 1953, 1968, 1994. The slide started already before 1949. Much earlier than I exected. In fact the photos of 1949 showed a significant amount of thaw features which since have stabilized. A number continued to grow as this one. The average melting rate between 1949 and 2007 is about 7 meters per year. The last 14 years the rate appears to be on the average about 11 meters per year.

I will do some more work on this, but in the meantime here is the overview image. Your aerial photo provides an excellent reference for interpreation.

More information can be found at my website: http://www.geostrategis.com/g_permafrostslide-bonnet.htm



--------------------
Jean Thie
Executive Director, Canadian Institute of Geomatics
www.geostrategis.com
Google Earth - An Exceptional Ecosystem Science Tool!
Monitor Permafrost Melting with Google Earth
Fire Ecosystem Interpretations with Google Earth
Map Glacial lake Agassiz!
Find the longest beaver dam in the World with Google Earth!

Edited by jean_thie (04/10/08 05:08 AM)

Post Extras: Print Post   Remind Me!   Report this Post  
Pages: 1 | 2 | 3 | (show all)


Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  


Extra information
0 registered and 3 anonymous users are browsing this forum.

Moderator:  esterrett, Jumble, Kempster, Hill, mcshea98, dulce, jeffryv, Frank_McVey, NormB, Cyclonic, tekgergedan, LuciaM, no_stranger, BeadieJay, TheLedge, greenmapper, Noisette, danescombe, Michal_Drewniak, freezer_magnet, mutex, marinerfan, Delta102, bebop 

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating: ****
Topic views: 21477

Rate this topic

Jump to

earth.google.com    bbs.keyhole.com

*
UBB.threads™ 6.5.1.1