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OSW Hydroacoustics

Index-Velocity Technical Tips


Note Sheets for Index Velocity Stations

Two note sheets are available for the inspection and servicing of index velocity gages and for installation of an index velocity gaging station. The forms below are provided in pdf format. Contact OSW for Publisher versions of the forms if desired.

Quick Sheets

The USGS has prepared technical references (quick sheets) to supplement the more formal index-velocity guidance publications. These index-velocity quick sheets (below) are a useful resource for hydrographers working with index-velocity records and stations.


Real-time Index Velocity Examples

The following links provide examples of USGS streamflow-gaging stations with real-time, online data produced from index-velocity instrument and methods:

Columbia River at the Dalles, Oregon (14105700) - long-term index-velocity site

Lostman's River below Second Bay, Florida (02290918) - a tidally effected stream in the Florida Everglades

Kankakee River at Davis, Indiana (05515500) - an low-slope Midwestern stream

Chicago Sanitary and Ship Canal near Lemont, Illinois (05536890) - a highly-regulated canal system with navigation, lockages, hydropower operations, and flood flow diversions

San Joaquin River at Jersey Point, California (11337190) - tidally-affected river flowing to the California Delta which is located at the confluence of the Sacramento and San Joaquin Rivers