DROUGHTS
RUNOFF
ATMOSPHERE
EVAPORATION
HYDROSPHERE
INFILTRATION
PRECIPITATION
CONDENSATION
R
S
S
I
A
X
X
C
L
W
X
L
S
I
A
D
Q
N
D
O
E
X
E
M
P
E
E
B
R
L
I
O
G
A
Y
A
T
M
O
S
P
H
E
R
E
M
I
J
O
U
W
O
P
R
D
R
Q
A
W
D
N
B
P
H
F
E
J
A
V
N
V
O
N
E
I
Q
K
U
R
Y
U
Z
I
C
C
O
U
A
O
F
B
U
T
W
E
D
Q
E
O
B
K
I
T
O
I
U
U
K
J
F
C
R
I
N
F
I
L
T
R
A
T
I
O
N
H
E
I
O
L
Z
B
F
A
A
W
E
A
E
D
U
A
U
P
S
X
P
E
F
V
R
I
C
S
Y
R
O
Z
Y
I
P
I
O
G
O
T
O
A
B
N
U
O
F
Z
O
T
H
H
U
P
N
R
P
V
M
E
C
U
G
I
L
A
E
A
X
Y
U
N
A
O
L
D
S
G
I
O
I
T
R
C
U
O
R
G
V
W
O
N
W
H
C
B
J
I
E
O
I
N
O
N
E
S
B
O
O
T
D
A
U
O
J
S
R
K
U
O
V
K
O
C
I
S
N
I
X
N
Q
