Search found 853 matches

by mdvaden
Tue Dec 11, 2018 6:26 pm
Forum: General Discussions
Topic: Accuracy of Trupulse 360 & Centurion
Replies: 20
Views: 4923

Re: Accuracy of Trupulse 360 & Centurion

Thank you Bob !!!! Appreciate how thorough you explain things .... A thoughtful person's post about Centurion at Facebook today, brought to mind some considerations that I will write after this quote ... Anonymous: " ... the growth rate over a 10 year period for this tree and this species at this ag...
by mdvaden
Tue Dec 11, 2018 3:28 pm
Forum: Measurement and Dendromorphometry
Topic: rounding
Replies: 10
Views: 4030

Re: rounding

NTS, This is a useful discussion to have because there is no single answer on when to apply rounding rules, and to what degree. The answer is case dependent on: 1. Accuracy of equipment being used and the state of its calibration 2. Expertise of measurer 3. Distinctness of target 4. Tripod or no tr...
by mdvaden
Mon Dec 10, 2018 7:10 pm
Forum: General Discussions
Topic: Accuracy of Trupulse 360 & Centurion
Replies: 20
Views: 4923

Re: Accuracy of Trupulse 360 & Centurion

If a tree isn't measured accurately, its not an appropriate number to advertise to the world for a hemisphere record. Its not Atkin's standard, its more that Atkins follows a method that works. He is using something that was introduced to him. Once leaving that narrow path, climbing becomes the opti...
by mdvaden
Mon Dec 10, 2018 3:57 pm
Forum: General Discussions
Topic: Accuracy of Trupulse 360 & Centurion
Replies: 20
Views: 4923

Re: Accuracy of Trupulse 360 & Centurion

Glad you noted what you could glean or not. Because last night, Steve from the group seemed to avoid my question. Anyhow, finally it was disclosed triggering was done by HAND ... finger pushing. It was not in the document, but replied after asking about 4 times. Their equipment lists no prism and ex...
by mdvaden
Mon Dec 10, 2018 1:16 am
Forum: General Discussions
Topic: Accuracy of Trupulse 360 & Centurion
Replies: 20
Views: 4923

Accuracy of Trupulse 360 & Centurion

(Note - replies #6 .. #7 .. #14 and #15 (dbhguru .. michael taylor .. brett misfud) give the opening a head start, and decipher things) On facebook THE TREE PROJECTS posted about measuring Centurion the Eucalyptus and getting over 100 meters height. They posted to send email for a document with the...
by mdvaden
Sun Nov 11, 2018 1:52 am
Forum: California
Topic: Redwood Coast Photos - 2018
Replies: 27
Views: 7470

Re: Redwood Coast Photos - 2018

Tried a new camera in the redwoods the other day. The new Canon EOS R and a RF 50mm 1.2 lens. The zoom function for this photo seems defunct, so here's a link to the image source: http://photos.imageevent.com/mdvaden/redwoods/giant/Bella_DNT_1400mdv.jpg http://photos.imageevent.com/mdvaden/redwoods/...
by mdvaden
Fri Nov 09, 2018 2:43 am
Forum: General Discussions
Topic: TIPS - Sparing Discovery Locations and Photos
Replies: 4
Views: 1531

Re: TIPS - Sparing Discovery Locations and Photos

Redwood_Sign_800B.jpg I've never lived or visited much out west, I understand things are qualitatively different when the trees in question are as spectacularly large as Redwoods & Sequoias, and of potential logging demand as well. So I hope you'll forgive me not understanding what the reason for t...
by mdvaden
Thu Oct 18, 2018 11:04 am
Forum: General Discussions
Topic: TIPS - Sparing Discovery Locations and Photos
Replies: 4
Views: 1531

TIPS - Sparing Discovery Locations and Photos

This seemed like a good time to share with others what could buffer the leak of a discovery, and something you can keep an eye on down the road for your discoveries First, back in 2014 or so, one or two guys were following me on the internet, evidently copying some photos from when Chris and I were ...
by mdvaden
Wed Oct 10, 2018 1:31 am
Forum: California
Topic: Northern California Redwood Forests - Not That Old?
Replies: 47
Views: 10188

Re: Northern California Redwood Forests - Not That Old?

According to NASA, global temperatures have increased about 8 degrees Fahrenheit since the end of the most recent ice age 12,000 years ago. During this time period humans have expanded and flourished , but it must be noted this change happened over thousands of years.. You may have discovered a hid...
by mdvaden
Mon Oct 08, 2018 1:44 pm
Forum: California
Topic: Northern California Redwood Forests - Not That Old?
Replies: 47
Views: 10188

Re: Northern California Redwood Forests - Not That Old?

I have no reason to question the basic science behind the idea that global warming is to a very large degree caused by the changes man's activities have been making in the content of the atmosphere. Since the start of the industrial revolution, the amount of carbon dioxide has increased from about ...

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