Review and Analysis of Rainfall and Runoff Data for Selected Watersheds in Minnesota

C. Edward Bowers, Arthur Pabst

Research output: Book/ReportOther report

Abstract

The objective of this study was the analysis of available rainfall end runoff data for selected watersheds in the state of Minnesota to assist in the evaluation of peak: rates of runoff tor design purposes. Six watersheds were selected tor study. Rainfa1l and runoff data were analyzed for 51 flood events in five of the six watersheds. An optimization program prepared by the U.S. Army Corps of Engineers Hydrologic Engineering Center was used to optimize nine variables associated with the watersheds, develop characteristic unit hydrographs, and evaluate loss rates tor the watershed in terms of the mathematical model represented by the optimization program. Data on annual maximum floods as well as maximum summer floods were plotted on log-probability paper and theoretical flood-frequency curves determined q, the log.Pearson Type III distribution. Approximately 200 figures relating to the rainfall-runoff data and analysis thereof have been included in the Appendices for future use. This might involve further work with the same program or possibly other programs. A limited number of copies of the Appendices has been prepared for reference purposes; other copies of the report were prepared without appendices.
Original languageEnglish (US)
StatePublished - Jun 1968

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