*Birds Chirping fades out as music begins.*
Narrator: Trees.
Diverse, they can be towering giants or petite saplings.
Some live for thousands of years recording their age in rings.
They provide food, shade, shelter and more for wildlife and for us.
Some tell us when the seasons change through their leaves.
*Elk bugles in distance*
While others continue to stand steadfast throughout the year.
But no matter their differences, their height can reveal information
About their ecosystems.
By using satellites and ground based measurements
Scientists can track tree growth and monitor how well an ecosystem supports trees.
Tree height is also used to measure the biomass of a forest.
Allowing scientists to calculate how much carbon is stored by trees.
These are all important factors
In conservation, resource management and monitoring the climate.
By using only a smartphone and the GLOBE Observer app, citizen scientists and students
Are helping create a global inventory of tree height. Available for everyone to use.
You can collect your own tree height data by downloading and using the GLOBE Observer app.
GLOBE Observer. observer.globe.com
GLOBE Observer Supported by globe.gov
Explore Earth
NASA