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ALT USGS personnel standing on a wooden boardwalk fly a small drone over a bog.
ALT True-color drone image showing the wooden boardwalk and bog from an aerial perspective.
ALT Indianapolis Zoo marine mammal trainers measure a healthy walrus in support of a USGS study that seeks to develop methods to monitor walrus body condition from survey drones flown high above walruses where they rest on shore.
ALT USGS uses drones like the orange fixed-wing aircraft seen here to survey walrus herds and carcasses on remote Alaskan beaches.
ALT Aerial view of the edge of a large walrus herd hauled out on the northwestern shores of Alaska. The image was taken using a drone that was flown to collect imagery of walruses resting on shore in 2018 and 2019.
ALT USGS personnel hike into a patch of Phragmites reeds in a coastal marsh
ALT Drone-based map of the marsh
ALT Vibrant lily pads and tall grasses stand out in a wetland at Great Meadows National Wildlife Refuge in eastern Massachusetts.
ALT A wetland area by Boulder Mountain, Utah, on a cloudy day in the fall, with autumn colors in the trees. Photo taken in September 2021 by Shannon Lencioni, SBSC, USGS. A tan rectangle with dotted green border in the lower right has text reading “World Wetlands Day February 2.”
