Surface water flow theory application to public policy development and adaptation for arid and semi-arid regions

Figures & data

Table 1. Small river macrogroups according to Conservation Gateway on North America’s Rivers (2010)

Slope category	Water temperature	Description
Low gradient	Cold	Slow moving, marshy terrain, bed dominated by silt, sand, fine gravel, average width 21 m, water of high turbidity and poorly oxygenated, at high elevations
Low gradient	Cool	Same as above, average width 20 m, at moderate elevations
Low gradient	Warm	Same as above, average width 19 m, at low elevations
Moderate gradient	Cold	Fast moving, rocky terrain, bed dominated by sand, gravel, and cobble, clear water and relatively well-oxygenated, average width 20 m, at high elevations
Moderate gradient	Cool	Same as above, at moderate elevations
Moderate gradient	Warm	Same as above, at moderate to low elevations

Figure 1. Percent adjustment to the roughness coefficient as a function of flow depth (w = 20 m).

Figure 2. Percent adjustment to the roughness coefficient as a function of flow depth (w = 19 m).

Figure 3. Theoretical framework linking the engineering dimension to the social and community dimension and the economic dimension.

Figure 4. Scatter plot showing the relationship between project index and the variable representing social and community involvement.

Table

se1 = 0.0393	se2 = 0.0355	se3 = 0.0346	se4 = 0.0275
γ1 = 0.35	γ4 = 0.65	γ5 = 0.655	γ6 = 0.35
γ2 = 0.25	γ8 = 0.35	γ9 = 0.345	γ7 = 0.15
γ3 = 0.40			γ10 = 0.35
			γ11 = 0.15

Figure 5. Scatter plot showing the relationship between project index and the variable representing potential use for agricultural purposes.

Conservation Gateway. (2010). North America small river: Small rivermacrogroups. Retrieved from http://www.conservationgateway.org/ConservationByGeography/NorthAmerica/UnitedStates/edc/reportsdata/hg/fw/Pages/SmallRivers.aspx

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