Analysis puts city's Urban Tree Canopy cover at 33%; Ann Arbor, MI

In 2010, the City of Ann Arbor in partnership with AMEC and with financial assistance from the Michigan Department of Natural Resources and Environment and USDA Forest Service, State and Private Forestry, Urban & Community Forestry programs conducted an urban tree canopy analysis.
What Is An Urban Tree Canopy Analysis (UTC)?
Urban tree canopy is the layer of leaves, branches, and stems of trees that cover the ground when viewed from above. AMEC conducted the City's UTC analysis by measuring this layer using leaf-on multi-spectral aerial imagery from the National Agriculture Imagery Program (NAIP).