Under-Ice: Computing Real-time Discharge Completed
Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor.
The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept.
Six conventional discharge measurements were collected concurrently with Probability Concept-derived discharges with percent differences (%) of -9.0%, -21%, -8.6%, 17.8%, 3.6%, and -2.3%.
This proof-of-concept demonstrates that riverine discharges can be computed using the Probability Concept for a range of hydraulic extremes (variations in discharge, open-water and under-ice conditions) immediately after the siting phase is complete, which typically requires one day. The Probability Concept and conventional methods such as index-velocity ratings offer water-resource managers and decision makers alternatives for computing real-time discharge for open-water and under-ice conditions.
Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept
Below are partners associated with this project.
- Overview
Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor.
The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept.
Six conventional discharge measurements were collected concurrently with Probability Concept-derived discharges with percent differences (%) of -9.0%, -21%, -8.6%, 17.8%, 3.6%, and -2.3%.
This proof-of-concept demonstrates that riverine discharges can be computed using the Probability Concept for a range of hydraulic extremes (variations in discharge, open-water and under-ice conditions) immediately after the siting phase is complete, which typically requires one day. The Probability Concept and conventional methods such as index-velocity ratings offer water-resource managers and decision makers alternatives for computing real-time discharge for open-water and under-ice conditions.
- Publications
Computing under-ice discharge: A proof-of-concept using hydroacoustics and the Probability Concept
Under-ice discharge is estimated using open-water reference hydrographs; however, the ratings for ice-affected sites are generally qualified as poor. The U.S. Geological Survey (USGS), in collaboration with the Colorado Water Conservation Board, conducted a proof-of-concept to develop an alternative method for computing under-ice discharge using hydroacoustics and the Probability Concept.The studyAuthorsJohn W. Fulton, Mark F. Henneberg, Taylor J. Mills, Michael S. Kohn, Brian Epstein, Elizabeth Hittle, William C. Damschen, Christopher D. Laveau, Jason M. Lambrecht, William H. Farmer - Partners
Below are partners associated with this project.