Off the Grid  Retirement at our remote log cabin in Colorado

Tuesday, December 06, 2016

The Griggs-Putnam Index

Posted by: Rick

The shape of trees has been used as a way to assess weather conditions for many years. Ever heard of the Griggs-Putnam Index of Deformity? It is often used by people in the wind energy industry to assess dominate wind direction and average speeds.

You can read more about using trees as a local climate indicator in this technical paper that summarizes the practice.

Here are a few photos of trees on our property. They show a dominant wind direction from the southwest with average speeds in the 9 to 13 mph range. Of course, we do get much higher wind speeds here, ranging up to or over 100 mph during a "wind event". The last photo is a bit of an anomaly.

Comments:

Commenting is not available in this channel entry.

Comments

Enter your comment into the form and press "Submit" to save it. Feel free to use Smileys. Comments are moderated and won't show up immediately.

Membership

Login  |  Register

Share

Quote of the Day

“Happiness is when what you think, what you say, and what you do are in harmony.” – Mahatma Gandhi

Search

Calendar of Entries

September 2023
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30

Archives

Photo Galleries

Recent Comments

  • Hello Christina! How nice of you to comment about my dusty old blog! I do…

    Posted to: ‘A Chapter Ends’ by Lynne on 12/07/2021

  • Good to know.  I’m just starting construction on my property “over the hill” in the…

    Posted to: ‘A Chapter Ends’ by bill bush on 09/29/2021

  • I began following the New Jersey Girl blog years ago, and I do miss the…

    Posted to: ‘A Chapter Ends’ by Christina Muller on 08/23/2021

  • Hi Steve! Thanks for being a loyal reader through the years. I have thought about…

    Posted to: ‘A Chapter Ends’ by Lynne on 08/06/2021

  • Thanks for the update. I enjoyed the writing both of you did about this adventure.…

    Posted to: ‘A Chapter Ends’ by Steve on 08/05/2021

Syndicate