Tree-Measuring Project with RVA and Earthwatch

Sunday, July 31st 2016 at 10:00 am
Sunday, July 31st 2016 at 1:00 pm
     The Rational Volunteer Association (RVA) of CFI-L.A. plans to participate in a scientific data collection project conducted by Earthwatch involving the measuring of trees on Sun., July 31, from 10 a.m. to 1 p.m., in Plummer Park in West Hollywood.

     The Earthwatch Operation Resilient Tree Project collects data to understand how urban trees grow in different climatic conditions. That data will be used by scientists at the University of California, Riverside, to determine water usage and cooling benefits of common urban tree species in Greater L.A. The results will help build urban resiliency in Southern California.

     Working in teams, volunteers use equipment provided by Earthwatch, the environmental non-profit science organization known for its volunteer expeditions worldwide. Volunteers will be trained on the spot by Ellie Perry, L.A. program consultant for Earthwatch. That equipment includes: measuring tapes to determine the diameter and circumference of targeted tree species and the tree canopy coverage; GPS devices to fix the location of trees for follow-up studies; compasses; a 33-foot string to outline an area surrounding the tree for volunteers to estimate the percentage of soil permeability; and data recording sheets.

     The work is light and fun for all ages, with some walking and crouching involved.

     If enough volunteers sign up for the event, we may be able to use a free van service from the CFI-L.A. parking lot. But the deadline to sign up for a ride is tomorrow, Thurs. July 28! Contact Ladendorf about a ride but still register with Earthwatch online. He will notify you by email Friday if the van will be used on Sunday.

     In March, Bob Ladendorf, chief operating officer of CFI-L.A., participated in a similar tree measurement project with Ellie in Cheviot Hills park. He says it's a wonderful way to be a part of a real science project, as well as enjoy the outdoors and camaraderie of fellow volunteers. Bob also participated in his first volunteer Earthwatch Expedition last year, studying the interaction of wolves, elk, fire and aspen trees in the Canadian Rockies for a long-term study by now Lead Scientist Cristina Eisenberg.

     For more information and to sign up, call or write Bob at (323) 666-9797, x104, or, or sign up directly online through Earthwatch's newsletter at:

Earthwatch Operation Resilient Tree Data Collection