(continued)
Symbol
Description
Unit
Reaf
Reallocation fraction = fraction of ZW1 that should be
reallocated to M2 (or not be abstracted), 0 Reaf 1
–
RF
Return Flow (return to the main source)
L3; L3/L2
RP
Potential Return (does not return to the main source)
L3; L3/L2
s
Useful; Usefulness index
–
SE
¼ SE S = Sefficiency
%
SE b
bSefficiency
%
Sefficiency
Sustainable efficiency
%
Sequity
Sustainable equity
–
Sg
Segment, e.g., Sg14 = segment with M2 in row 1, and M1 in
column 4
–
SW
Water Shortage (SW 0) for rows 1 and 2 = The amount
of water needed to reach target
L3; L3/L2
SWn
SW of Mn from its Tg = Tgn - Mn
L3; L3/L2
Tgn
Target (Tg) of M1 or M2
L3; L3/L2
TUF d
Total Unrecoverable Flow along d
L3; L3/L2
V1
Volume of water at section 1 (VU or VA)
L3; L3/L2
V2
Volume of water at section 2 (VD or RF)
L3; L3/L2
VA
Abstracted/Applied water from the main source
L3; L3/L2
VD
Volume of water Downstream after RF in the main source L3; L3/L2
VU
Volume of water Upstream before abstraction in the main
source
L3; L3/L2
W
Weight
–
WaP
Water Productivity
Various
W bX
Beneficial weight of an WPI = X
–
WC1
Desirable Consumption fraction
–
WL
Water Loss
L3; L3/L2
WPI
Water Path Instance
L3; L3/L2
WPT
Water Path Type
L3; L3/L2
W qX
Quality weight of an WPI = X
–
WR1
Desirable Return fraction
–
W sX
Usefulness criterion of an WPI = X
–
WUS
Water Use System
–
X
¼ WPI for ease of use in equations
L3; L3/L2
X S
Useful part of X
L3; L3/L2
ZW
Water excess (ZW 0) = The amount of water in excess of
target
L3; L3/L2
ZWn
ZW of Mn from its Tg = Mn - Tgn
L3; L3/L2
Abbreviations and Symbols
xv