Bob, It is funny you mention errors in the tape drop measurement. I put a sentence to that effect at the end of the message, but deleted it before sending. There are several potential errors: 1.. tangles in the tape 2.. tape caught on branches and not hanging free. 3.. misidentifying the tallest top 4.. not reaching the tallest top. 5.. top pole is titled at an angle 6.. the bottom position misidentified 7.. length of top pole mismeasured 8.. methodological errors 9.. tape stretch- not significant, but included for completeness sake. Most of these can be overcome with due care, but we should e aware of them. How about it tree climbers are there other sources of error to consider?
Ed Check out my new Blog: http://nature-web-network.blogspot.com/ (and click on some of the ads) -- Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected]
