Description Usage Arguments Value See Also Examples
Determines the optimal sequence of releases from the reservoir to minimise a penalty cost function based on water supply defict.
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Q |
vector or time series object. Net inflow totals to the reservoir. Recommended units: Mm^3 (Million cubic meters). |
capacity |
numerical. The reservoir storage capacity. Recommended units: Mm^3 (Million cubic meters). |
target |
numerical. The target release constant. Recommended units: Mm^3 (Million cubic meters). |
surface_area |
numerical. The reservoir water surface area at maximum capacity. Recommended units: km^2 (square kilometers). |
max_depth |
numerical. The maximum water depth of the reservoir at maximum capacity. If omitted, the depth-storage-area relationship will be estimated from surface area and capacity only. Recommended units: meters. |
evap |
vector or time series object of length Q, or a numerical constant. Evaporation from losses from reservoir surface. Varies with level if depth and surface_area parameters are specified. Recommended units: meters, or kg/m2 * 10 ^ -3. |
S_disc |
integer. Storage discretization–the number of equally-sized storage states. Default = 1000. |
R_disc |
integer. Release discretization. Default = 10 divisions. |
loss_exp |
numeric. The exponent of the penalty cost function–i.e., Cost[t] <- ((target - release[t]) / target) ^ **loss_exp**). Default value is 2. |
S_initial |
numeric. The initial storage as a ratio of capacity (0 <= S_initial <= 1). The default value is 1. |
c2g |
vector. Optional end-state cost-to-go. |
plot |
logical. If TRUE (the default) the storage behavior diagram and release time series are plotted. |
rep_rrv |
logical. If TRUE then reliability, resilience and vulnerability metrics are computed and returned. |
Returns the reservoir simulation output (storage, release, spill), total penalty cost associated with the objective function, and, if requested, the reliability, resilience and vulnerability of the system.
sdp_supply
for Stochastic Dynamic Programming for water supply reservoirs
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