WMS:Riverside County Lag Time Equation: Difference between revisions

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[[Category:Equations|R]]
[[Category:Equations|Riverside]]

Revision as of 15:41, 6 December 2016

The Riverside County Flood Control and Water Conservancy District developed three different lag equations corresponding to mountainous, foothill, and valley areas near Riverside County, California (Anonymous, 1963).

(Mountainous) 15.19
(Foothills) 15.20
(Valleys) 15.21

where:

= lag time in hours.

= maximum flow length in miles.

= length to the centroid in miles.

= weighted slope along the maximum flow path length in ft/mile.

The typical characteristics of watersheds for which the Riverside County equations were used include the following:

  • Areas from 2 to 650 square miles.


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