A Comparison of Water Lag Times for Converging and Plane Surfaces
Author(s) -
Necati Ağıralioğlu
Publication year - 1985
Publication title -
hydrology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 48
eISSN - 1996-9694
pISSN - 0029-1277
DOI - 10.2166/nh.1985.0013
Subject(s) - lag , time lag , plane (geometry) , lag time , convergence (economics) , surface (topology) , surface finish , watershed , mathematics , surface roughness , geometry , mechanics , materials science , environmental science , physics , biological system , computer science , composite material , biology , economics , computer network , machine learning , economic growth
In order to examine the influence of the degree of convergence for converging geometry on lag time, a comparison of surface water lag times for converging and plane surfaces is made using the Overton lag time concept. Assuming that four physical characteristics, watershed length, slope, roughness and rainfall excess are the same, an expression of the ratio of the lag time for converging surface to the lag time for plane surface is derived. The expression is solved numerically, and evaluated graphically for practical purposes. And the findings are compared with those of a previous study.
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