Microcomputer Graphics Flood Stationarity Test

by Brian M. Reich, Brian M. Reich Inc, Tucson, AZ, USA,
Darde G. de Roulhac, Brian M. Reich Inc, Tucson, AZ, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

Only records that correspond with present river conditions should be used with flood frequency analysis when forecasting. A microcomputer test is discussed which aids in selecting appropriate data to represent the 'present' conditions. This computer program simplifies comparison of many optional record segments by a new non-parametric test. It inputs and manages data and prepares flood frequency plots of 'early' and 'after' sub-series, superimposed on one probability sheet. Separation and change in shape of these flood frequency plots indicate significant non-stationarity.

Subject Headings: Flood frequency | Computer analysis | Graphic methods | Rivers and streams | Forecasting | Statistics | Parameters (statistics)

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