25 Years of Forest Dynamics
Annual maps of the lower-48 United States produced from Landsat data illustrate how forests changed from 1986-2010. Logging and hurricanes play a significant role in the Southeast, and fires and insect invasion damage forest canopy in the West.
Complete transcript available.
Music credit: Dusk On The Plains by B. Boston
Watch this video on the NASA Goddard YouTube channel.
Forests are living, ever changing ecosystems, affected by aging, natural disasters and human interventions.
Annual maps of the lower-48 United States produced from satellite data illustrate how these dynamic systems changed from 1986-2010. Logging and hurricanes play a significant role in the Southeast, and fires and insect invasion damage forest canopy in the West.
Trees are one of the world's best absorbers of atmospheric carbon dioxide, a greenhouse gas. Understanding how trees and forests change through time is one of the first steps to understanding how active they are in pulling carbon dioxide out of the atmosphere, which is of profound interest to scientists monitoring climate change.
Developed for the North American Forest Dynamics study, scientists combined 25 years of satellite data from the joint U.S. Geological Survey/NASA Landsat satellite program with information from the U.S. Forest Service to highlight where forest canopy was disturbed.
To learn more about the project and get data, visit: https://daac.ornl.gov/NACP/guides/NAFD-NEX_Forest_Disturbance.html
Please give credit for this item to:
NASA's Goddard Space Flight Center
- Greg Shirah (NASA/GSFC) [Lead]