USGS: USGS TM 3-A23
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Title
| Computing Discharge Using the Index Velocity Method |
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Author
| Levesque, V.A., and Oberg, K.A |
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Abstract/Summary Statement
| The report presents techniques and guidance for collecting, analyzing, and computing discharge records using the index velocity method. The report presents a logical step-by-step approach of the index velocity method, from site and instrument selection, to acoustic Doppler velocity meter (ADVM) installation and configuration, to routine field and office techniques, to development and analysis of stage-area and index velocity ratings, and finally to the computation and analysis of discharge. The techniques and policies described in this T&M report represent the most up-to-date guidance on the application of the index velocity method to discharge record computation and are based on the experience of U.S. Geological Survey (USGS) employees, USGS training classes, and published reports and papers. Although Rantz and others (1982) provided information on the index velocity method, until now the USGS has had no formal technique and methods report documenting the index velocity method. The policies and guidance provided in this report take precedence over any previous USGS guidance. |
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Table of Contents
| Sections include: Acknowledgments Abstract Introduction Introduction to the Index Velocity Method Site and Instrument Selection ADVM Installation and Configuration Routine Field Techniques Routine Office Techniques Rating Development and Analysis Discharge Measurement Calibration Data Index Velocity Rating Computation and Analysis of Discharge Summary and Conclusions References Glossary Appendixes: Appendix 1. Mounts for Acoustic Doppler Velocity Meters Appendix 2. Forms and Quick-Reference Guides Appendix 3. Analysis of Data for Selection of Measurement Volume Appendix 4. Quality Control of Index Velocity Data for SonTek/YSI Argonauts' Appendix 5. Evaluating Changes in Stage-Area Ratings Appendix 6. Implementing the Stage-Area and Index Ratings in National Water Informaiton System (NWIS) Automated Data Processing System (ADAPS) version 4.10 Appendix 7. Index Velocity Rating Shifts Appendix 8. Example of an Index Velocity Station Analysis |
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Citation
| Levesque, V.A., and Oberg, K.A., 2012, Computing discharge using the index velocity method: U.S. Geological Survey Techniques and Methods 3-A23, 148 p. |
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Method Source
| USGS |
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Source Organization Country
| USA |
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Publication Year
| 2012 |
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Special Notes
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Item Type
| Report / Guidance Document |
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Publication Source Type
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Government Agency (Federal, USA) |
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Purpose
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Data analysis |
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Design or Data Analysis Objectives
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Revisit |
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Complexity
| Medium |
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Media Emphasized
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Surface Water |
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Media Subcategory
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Special Topics
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