USGS LOGO

Acoustic Doppler Velocity Monitoring Within Main Spring, Barton Springs, Austin, Texas, April–September 2004—Enhancing the Accuracy of Springflow Data

By W.H. Asquith and M.O. Gary

U.S. Geological Survey
Fact Sheet 2005–3044


Document Accessibility: Adobe Systems Incorporated has information about PDFs and the visually impaired. This information provides tools to help make PDF files accessible. These tools convert Adobe PDF documents into HTML or ASCII text, which then can be read by a number of common screen-reading programs that synthesize text as audible speech. In addition, an accessible version of Acrobat Reader 5.0 for Windows (English only), which contains support for screen readers, is available. These tools and the accessible reader may be obtained free from Adobe at http://access.adobe.com/.

pdf (2.14 MB)


Contents

Daily Mean Springflow

Velocity Data for Estimation of Daily Mean Springflow

Summary of Periods of Daily Mean Springflow Estimation

Additional Observations

Summary

Selected References

Figures

1.   Map showing Barton Springs swimming pool, associated springs, and ancillary elements for springflow monitoring, Austin, Texas
2.   Photograph showing Main Spring and approximate location of orifice and monitoring well
3–6.   Graphs showing:
  3.   Comparison of gage height and computed and estimated daily mean springflow for 08155500 Barton Springs at Austin, Texas, April 1–September 30, 2004
  4.   Comparison of z-component of velocity within Main Spring, daily mean springflow derived from stage-discharge relation, and estimated daily mean springflow for 08155500 Barton Springs at Austin, Texas, April 1–September 30, 2004
  5.   Comparison of z-component of velocity within Main Spring, daily mean springflow derived from stage-discharge rating curve, and estimated daily mean springflow for 08155500 Barton Springs at Austin, Texas, June 7–20, 2004
  6.   Comparison of z-component of velocity within Main Spring and daily mean discharge derived from stage-discharge relation for 08155500 Barton Springs at Austin, Texas, April 1–13, 2004

Table

1.   Estimation of daily mean springflow using discharge/index-velocity ratio and daily mean velocity



 

FirstGov button  Take Pride in America button