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Orthomosaic map produced for the Delaware River Integrated Water Science basin, West Branch of the Delaware River near the Stilesville study site, August 19, 2022

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-01-24T00:00:00Z
A Bell 407 helicopter with a gyro-stabilized gimbal was used to collect aerial videos of Delaware River Water Science Basin (IWS) riverine study sites in 2022. Videos were collected using both natural color and thermal infrared cameras. These videos were used to determine the feasibility of estimating river surface velocity using aerial imagery. Photogrammetry techniques were used with the natural color video images to produce an orthomosaic map of the study reach.

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