Monday, June 21, 2010
I was doing some research for work on wind farms, and I found that the average wind speed at a particular location can be estimated by the shape of the trees that grow there. That made me think of these pictures of Monterey Cypress trees I took in Pebble Beach, California on the beautiful 17-Mile Drive.
The photo above is the famous "Lone Cypress", which the Pebble Beach Corporation claims to have copyrighted. If you are reading this, my blog has not yet been shut down by their overzealous lawyers.
The photo below was taken from an angle that really shows the shaping of the trees. You can see that the amount of leaves and branches to the left of the left-most trunk is much less than the amount to the right of the right-most trunk. This is called "flagging", since the tree is starting to look like a flag, with the fabric (the leaves and branches) all to one side of the flagpole (the trunk).
A couple of guys actually sat down and put together a scale to gauge wind speed based on the flagging of trees. When a tree starts bending over from the wind, they call it "throwing", and when it gives up and lies down they call that "carpeting". I love their descriptive language! This table is courtesy of Idaho National Laboratory.
When I did some more reading about Monterey Cypress trees, I found that only some of their deformity is due to the wind coming off the ocean. Some of it is due to "salt pruning", which is damage to leaves due to the salty mist. So these trees are getting a double whammy, a wind that is carrying salt mist.
One more thing about the famous Lone Cypress. If you look a little closer, you will find that the Pebble Beach Corporation has protected its money-making copyrighted tree by tying it to the rock outcropping with wire.
Now for your moment of Zen, sunset on Pebble Beach:
at 10:11 PM