Minimum controllable flow (Fmin) is not the leakage flow (which occurs when the valve is closed) but the minimum flow that is still controllable and can be changed up or down as the valve is throttled.
In the case of directed acyclic graphs, Mairal and Yu (2011) propose a minimum flow formulation that makes it possible to use for groups (or blocks) the set of all paths of the network.
The key idea is to define 'restraining number' (i.e., the minimum number of flows that cannot be manipulated along with others in an unit, which is also an inherent characteristic of that unit) of an unit.
Mean annual flow was positively related to minimum flows, suggesting that potential future declines in mean annual flows will correspond with declines in minimum flows.
We define (x_{2}) as the minimum cash flow that allows full debt service, i.e., (x_{2}:=inf {x|D_{c2}(x)=lambda (1+i)}).
Intermittent streams are already common in this region, and it is likely that minimum flows will decrease and some perennial streams will shift to intermittent flow under climate-driven changes in timing and magnitude of precipitation and runoff, combined with increases in temperature.
In the talks, Florida has so far demanded that Georgia sign on both to agreements that would guarantee minimum flows of water at the point where the Chattahoochee crosses the Florida line, and to limits that would affect how much river water Georgia could withdraw.
D1610 states that the minimum flows are determined by a hydrologic index based on cumulative inflow into Lake Pillsbury, a reservoir on the Eel River in Lake County.
However, in 2008, a Biological Opinion (BiOp) for the Russian River issued by National Marine Fisheries Service determined that the minimum flow in D1610 creates velocities that are too high for some salmonid species.
Following that, minimum flow and agriculture requirements are next prioritized in this order.
