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Bathymetric DEM of the lower Nooksack River, August 2015

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-27T00:00:00Z
Bathymetric data for the mainstem of the Nooksack River during low flow conditions from 24 to 27 August 2015. Depth data were collected with boat-mounted single-beam echo sounder downstream of Ferndale, Washington and a boat-mounted acoustic doppler current profiler (ADCP) upstream of Ferndale. Elevation of the instruments were determined with real-time kinetic global positioning system (RTK GPS). Irregular XYZ points were interpolated to a continuous grid using kriding methods in stream-wise coordinates and extended to the edge of water through the inclusion of points representing zero-depth locations in the kriging process.

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