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The exponent of the discharge-area rating: β. b. Gravity, friction, pressure gradient, and inertia. The wind force is missing from a conventional open-channel flow analysis. c. W/D > 10 d. Under Manning friction, the neutral-stability Froude number is 2. e. Maximum value of Manning's n: n = 1, applicable to the Everglades flow modeling, in Southern Florida. f. Seddon waves are kinematic, with small dimensionless wavenumber; Lagrange waves are dynamic, with large dimensionless wavenumber. They are the same for Vedernikov number V = 1. g. For a hydraulically wide channel, the critical slope is the same as the dimensionless Chezy friction factor, that is, 1/8 of the Darcy-Weisbach friction factor. h. To lower the reservoir level through the service pipes as much as possible or warranted, in anticipation of heavy storms, in the absence of workable spillways.
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