USGS employee prepares unmanned aerial vehicle for takeoff
Detailed Description
USGS employee John Fulton prepares an unmanned aerial vehicle for take off. This particular drone referred to as "Q-Cam" measures surface water stream velocity. Combined with a second drone, non-contact discharge measurements can be made. This technology is part of the USGS Next Generation Water Observing System in the Delaware River Basin.
Sources/Usage
Public Domain.