Geography Reference
In-Depth Information
Geostatistics
Global regr.
Regional regr.
Short records
0.8
0.4
0.0
-0.4
-0.8
0.4
0.6 0.8 1.0 2.0
0.4
0.6 0.8 1.0 2.0
0.4
0.6 0.8 1.0 2.0
0.4
0.6 0.8 1.0 2.0
E
PA
/
P
A
(-)
E
PA
/
P
A
(-)
E
PA
/
P
A
(-)
E
PA
/
P
A
(-)
0.8
0.4
0.0
-0.4
-0.8
368 0 2
T
A
(
C)
368 0 2
T
A
(
C)
368 0 2
T
A
(
C)
368 0 2
T
A
(
C)
0.8
0.4
0.0
-0.4
-0.8
3
Elevation (10
2
m a.s.l.)
6
9
12
15
3
6
9
12
15
3
6
9
12
15
3
6
9
12
15
Elevation (10
2
m a.s.l.)
Elevation (10
2
m a.s.l.)
Elevation (10
2
m a.s.l.)
0.8
0.4
0.0
-0.4
-0.8
0.05 0.1 0.5
Area (10
3
km
2
)
1
5
0.05 0.1 0.5
Area (10
3
km
2
)
1
5
0.05 0.1 0.5
Area (10
3
km
2
)
1
5
0.05 0.1 0.5
Area (10
3
km
2
)
15
Figure 8.20. Normalised error (NE) of predicting low flows in ungauged basins as a function of aridity (E
PA
/P
A
), mean annual air
temperature (T
A
), mean elevation and catchment area for different parameter regionalisation methods. Lines connect median efficiencies
for the same study. Boxes are 40%
-
60% quantiles, whiskers are 20%
-
80% quantiles. After Salinas et al.(
2013
).
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