How Do You Measure The Velocity Of A River Using A Flow Meter?
Stream flow information is important to home owners, builders and developers and is essential in conducting foundation calculations in areas near the water; studying the hydrologic cycle to determine relationships between rain, run-off and groundwater; and evaluating the impact of environmental off-site and on-site flows originating both naturally and from man-made sources. Stream flow studies also assist in “water budgeting,” where cities depend on stream-fed bodies of water for their municipal water supplies. The method described here is based on the USGS 6-10 Method. Select the part of the channel to be measured. The ideal is a stable stream that does not significantly alter course, depth or flow with minor environmental changes. The flow within the channel should run parallel to the stream channel orientation and not be interrupted by backwater flows or structures. Develop a cross section of the stream. Measure the width of the stream, extending the cross-section to a point on the
