Simplified Testing of Hydrologic Regression Regions

by Gary D. Tasker, (M.ASCE), Hydrologist; U.S. Geological Survey, National Center, Reston, Va. 22090,

Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 10, Pg. 1218-1222

Document Type: Journal Paper


The Wilsoxon Signed Ranks Test is suggested to test the statistical significance of homogenous hydrologic regions defined by subjectively drawing regional boundaries around regression residuals plotted on a map. Such a test provides the regression analyst and user with helpful insight into what extent the definition of hydrologic region boundaries are supported by the regression data, and to what extent the boundaries are the subjective judgment of the data analyst.

Subject Headings: Domain boundary | Hydrology | Regression analysis | Hydrologic data | Statistics | Homogeneity | Mapping | Terminology and definition

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