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OSW Hydroacoustics

Using Extrap to Determine Proper Extrapolation Methods, Part 1 - General Overview (Podcast)

Version Date: December 2010

David S. Mueller


This podcast provides an introduction to the Extrap tool for determining correct extrapolation methods for moving-boat ADCP measurements. The podcast covers: the purpose of the Extrap tool,the shape and distribution of velocity profiles in rivers, how profiles are averaged in WinRiver, how profiles are averaged in Extrap, and provides a detailed description of the Extap interface

Available Formats

MPEG-4 (MP4)

Windows Media Video (WMV)

Transcript (PDF)

Instructional podcasts and recorded webinars are designed to offer convenient, on-demand instruction and assistance on a variety of hydroacoustic instrumentation topics. The podcasts are typically video presentation that have been created to cover a specific topic. The available webinars are live presentations that were recorded. The use of trade names does not imply endorsement by the USGS.