Research Article
Jan 1968
Double-Mass Analysis on the Computer
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 94, Issue 1
Abstract
Hydrologists use double-mass analysis to verify the consistency of a precipitation or streamflow record. Precipitation of a station is plotted against the combined precipitation of the surrounding stations. The consistency of the record is verified if a single straight line fitted through the points is reasonable. The analysis is done on the computer by fitting a straight line and a fourth-degree polynomial through the points and comparing the two sums of squares of deviations of the points from the fitted curves. If a record is found to be inconsistent, it is adjusted by bringing the deviated points along a desired single straight line. The method should be of value to the hydrologists having access to computers.
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Published In
Journal of the Hydraulics Division
Volume 94 • Issue 1 • January 1968
Pages: 139 - 142
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: Jan 1968
Published online: Feb 3, 2021
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Authors
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Rameshwar Singh, A.M.ASCE
Asst. Prof., Dept. of Civ. Engrg., San Jose State College, San Jose, Calif., formerly at the Univ. of British Columbia, Vancouver, Canada
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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.