56
2. Formulating
the
Problem
Dam Revenue
Equation
Xijt = fASi+ut,
Iat, Σ AjjQtot,
D ijt )
for alii
(2.7)
i
Recreation
Constraints
Sat > S jr
for all i, i, and t
(2.8)
4
+3
Σ//(£R»
for all i and t
(2.9)
Municipal
and Industrial
Requirements
Σ/;(^·+ι ( /ί, Σ
> ^
for all i and ί
(2.10)
j
m
4
i-«iV+S
Σ Fat + Σ
> Fu
for all i and t
(2.11)
4
+3
Σ #i7* + Σ £>w > Gu for all i and ί
(2.12)
,7-1
Physical
Constraints
Mi
Si+l.jt
— Sijt = Σ
—
F\jt ~ Eij t ~ Dijt + Uijt + \ijjijt
(2.13)
Σ
^ ^«
f°
r a ^ *
a n d ί
(2.14)
= S j0
for alii
(2.15)
L m < Q imt < C m
(2.16)
0 < Sut < Vj
(2.17)
2·5· Sources of Data for the Mathematical Model
Table 2.1 lists in alphabetical order the constants and variables involved
in the model of the water resources system together with the numbers of
the equations and functions in which the variables appear. Table 2.2