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Record number 525685
Title Hoge afvoeren van enige Nederlandse stroomgebieden
Author(s) Jager, A.W. de
Source University. Promotor(en): F. Hellinga. - S.l. : s.n. - ISBN 9789022001189 - 167
Publication type Dissertation, internally prepared
Publication year 1965
Keyword(s) bodemwater - afvoer - oppervlakkige afvoer - hydrologie - nederland - soil water - discharge - runoff - hydrology - netherlands
Categories Hydrology
Abstract The relation between precipitation and runoff hydrographs during winter periods with heavy rainfall showed an almost constant base flow and high peaks of runoff.

Hydrographs of various basins were analysed by runoff characteristics, in which the following parameters occurred: the percentage of the total area contributing to peak runoff; the reservoir coefficient of this temporary runoff, as developed by Kraijenhoff van de Leur for groundwater flow and here used in general for estimating the transformation of rainfall into runoff; the size of the almost constant base flow.

For each of the catchment areas, varying in size from 30 to 8000 ha, the reservoir coefficient, derived in various periods, was constant, depending partly on average slope of the terrain.

Proportion of precipitation constituting peak runoff was not constant during the whole winter but was, up to a maximum, largely determined by the amount of preceding rainfall. This maximum coincided approximately with the area where the watertable rose in wet periods close to soil surface, causing gley symptoms in the soil profile, and corresponded to the area with ditches.

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