Research Article
Nov 1964
Errors in Piezometric Measurement
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 90, Issue 6
Abstract
Laboratory tests indicate that piezometric measurements of depth in open channels are characterized by positive errors that increase with size of piezometer opening. For a given piezometer size, the error is expressed as a constant percentage of the mean velocity head. Roughnesses added to the test channel tended to reduce the magnitude of the error whereas surface waves did not affect the piezometric measurement.
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Published In
Journal of the Hydraulics Division
Volume 90 • Issue 6 • November 1964
Pages: 45 - 61
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Nov 1964
Published online: Feb 3, 2021
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Authors
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William W. Emmett, AM.ASCE
Hydr. Engr., Water Resources Div., Geol. Survey, U. S. Dept. of the Interior, Washington, D. C.
James R. Wallace, AM.ASCE
Teaching Asst., Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.