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Everest

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Hama75
(@paul-landau)
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This is cool, http://www.newsy.com/stories/team-will-measure-mount-everest-to-determine-if-it-shrank/


 
Posted : January 27, 2017 7:39 pm
jhframe
(@jim-frame)
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"The margin of error on those measurements is a single centimeter."

Good luck with that.

"After that, the team will cross-check those numbers the old-fashioned way using the triangulation method. A researcher stands on a horizontal surface at a known distance from the mountain and uses a telescopic protractor to find the angle between his or her location and Everest‰Ûªs peak."

I meant to use my telescopic protractor today, but ended up using the thing with single-centimeter error instead.


 
Posted : January 27, 2017 10:42 pm
ease
 ease
(@ease)
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So is there a benchmark up there or do I need to set one?


 
Posted : January 29, 2017 7:29 am
Artie Kay
(@artie-kay)
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Hmm, not sure if the competing countries in the long running measure Everest competition can even agree on a geoid height to start from. At least there will be an ECEF gps 'height' as an absolute reference. Can we all it the 'Jules Verne height'?


 
Posted : January 29, 2017 8:16 am
FL/GA PLS
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They should have employed Jerry Penry and crew to do this right!


 
Posted : January 29, 2017 8:25 am

larry-scott
(@larry-scott)
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The height of Everest was a fantastic achievement. But the advances in triangulation and geodesy are immeasurable. Pun intended.


 
Posted : February 4, 2017 10:48 pm
MitchPTD
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ease, post: 411371, member: 1584 wrote: So is there a benchmark up there or do I need to set one?

I remember in 1999 they hauled a Trimble 4800 to the summit, and did a static survey. And Yes, they did set a benchmark up there 🙂
http://www.prnewswire.com/news-releases/everest-expedition-establishes-worlds-highest-survey-station-75925452.html

Just some problem knowing what Geoid to use. Of course.


 
Posted : February 8, 2017 11:19 am