El Capitan digital terrain movie

Search
Go

Discussion Topic

Return to Forum List
Post a Reply
Messages 1 - 14 of total 14 in this topic
gstock

climber
Yosemite Valley
Topic Author's Original Post - Oct 8, 2012 - 01:23pm PT
Figured this deserved its own thread.

Below is a digital terrain movie of El Capitan I put together for my Facelift presentation. It was produced from terrestrial laser scanning (LiDAR) data collected from El Cap Meadow, with many millions of individually georeferenced points. The grayscale values relate to the reflectivity of the rock, which is why the North America diorite appears so dark relative to the surrounding granite.

We are using terrestrial LiDAR to map the geology of El Capitan and study rockfalls throughout Yosemite Valley. Enjoy!

Greg Stock
Yosemite Park Geologist
(209) 379-1420
greg_stock@nps.gov


spenchur

climber
Flagstaff/Thousand Oaks
Oct 8, 2012 - 01:36pm PT
cool geology related bump...i watched that thing 10 times. awesome!
Mungeclimber

Trad climber
the crowd MUST BE MOCKED...Mocked I tell you.
Oct 8, 2012 - 01:40pm PT
hubba hubba, nice vid!
PhilG

Trad climber
The Circuit, Tonasket WA
Oct 8, 2012 - 01:42pm PT
Way cool!
HighTraverse

Trad climber
Bay Area
Oct 8, 2012 - 05:35pm PT
I've been hoping you'd post this.
Now I can sleep again!
Hey....there's El Cap Tree in all it's glory.
aguacaliente

climber
Oct 8, 2012 - 05:40pm PT
My God it's full of STARS
My God it's full of STARS
Credit: Stanley K.

Cool!
Captain...or Skully

climber
Oct 8, 2012 - 05:45pm PT
Very cool. TFPU, Greg!
Jane Gallwey

Big Wall climber
Ireland
Oct 8, 2012 - 07:56pm PT
Sweet, what scanner are you using? Didn't realise the geologic map of El Cap was using TLS. Would love to hear more of the technical details of this project.
Cheers,
Jane - Laser scanning surveyor
Minerals

Social climber
The Deli
Oct 8, 2012 - 08:22pm PT
Thanks for posting that, Greg!
phylp

Trad climber
Millbrae, CA
Oct 8, 2012 - 08:25pm PT
Oh, so glad you posted that!
gstock

climber
Yosemite Valley
Topic Author's Reply - Oct 8, 2012 - 08:50pm PT
The data were collected with an Optech long-range scanner. We tried several "extended range" units beginning in 2007, but none had the range to get data from the upper third of the cliff until the long-range unit was introduced in 2010. I use I-Site Studio software to view the point clouds.

Greg
Grizzly

Big Wall climber
Oct 8, 2012 - 11:28pm PT
Awesome!! Thanks Greg
Jim Brennan

Trad climber
Vancouver Canada
Oct 10, 2012 - 12:04am PT
Thanks Greg, that is super cool !
Wade Icey

Trad climber
www.alohashirtrescue.com
Jun 5, 2013 - 12:38pm PT
yes
Messages 1 - 14 of total 14 in this topic
Return to Forum List
Post a Reply
 
Our Guidebooks
Check 'em out!
SuperTopo Guidebooks


Try a free sample topo!

 
SuperTopo on the Web

Review Categories
Recent Trip Report and Articles
Recent Route Beta
Recent Gear Reviews