Plotting Positions for Hydrologic Frequencies

by John R. Stipp, (F.ASCE), Civ. Engrg.; Board of Engrs. for Rivers and Harbors, Corps of Engrs., Washington, DC,
George K. Young, Jr., Adj. Associate; Catholic Univ. of America, Washington, DC,

Serial Information: Journal of the Hydraulics Division, 1971, Vol. 97, Issue 1, Pg. 219-222

Document Type: Journal Paper


The objective herein is the development of a formula for plotting the frequencies of annual floods, or other comparable data, which will lead to a graphical solution as nearly the same as possible as the computed log-Pearson Type III curve, recommended by the Hydrology Committee of the Water Resources Council as a base method.

Subject Headings: Hydrology | Water resources | Flood frequency | Hydrologic data | Graphic methods | Professional societies | Probability distribution | Curvature

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