Sunlight can have a significant impact on freshwater aquatic communities. Using Geographic Resources Analysis Support System (GRASS) geospatial analysis software, a previously generated 18.2 m resolution forest canopy height grid for the State of North Carolina was used as a base elevation layer for calculation of daily total irradiance (Watt-hours/square meter/day) grids.
U.S. Fish & Wildlife Service
The Migratory Bird Program in the FWS utilizes remotely sensed data to survey migratory birds, conduct research on bird migration and habitat use, evaluate habitat conditions, and manage migratory bird populations and habitat through Joint Ventures, a collaborative, regional partnership of government agencies, non-profit organizations, corporations, tribes, and individuals that conserves habitat for priority bird species, other wildlife, and people.
Land cover and vegetation maps are common products used by many refuges to portray current conditions. A variety of remote sensing and geospatial layers may be used to derive these products.