Systematic Variation Pattern of Annual River Flows

by Frank W. F. Waitt,
Ian C. O'Neill,


Serial Information: Journal of the Hydraulics Division, 1969, Vol. 95, Issue 3, Pg. 787-810


Document Type: Journal Paper

Discussion: (See full record)

Abstract: Statistical analysis of annual river flows in the United States, some European countries and southern Australia, in latitudes higher than 34○ N or S indicates a useful significant relationship between the standard deviation of the logarithms of inches depth of annual runoff from a river catchment and the geometric mean annual runoff depth. For the separate zones, equations and tables are given for the evaluation of probabilities of annual flow of a river from its estimated geometric mean depth of annual runoff and these can be used where records are inadequate or as a check on other methods. The logarithmic distribution was found to be appropriate for statistical analysis, with a general trend towards slight negative skewness. Tests of a small sample suggest that dry season flows may follow a similar pattern to that of the annual flows.

Subject Headings: Streamflow | River flow | Flow patterns | River systems | Runoff | Geometrics | Catchments | Light rail transit | Rivers and streams | North America | Australia | United States

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