Geoscience Reference
In-Depth Information
λ
with range p
Table 7.4.
The evolution of
λ
with an increase in the range
Figure 7.16.
The evolution o
f
λ
with Thiessen coefficients
and the comparison of
λ for different points on the grid and
for different
p
oints within the drainage basin lead to the creation of weighting
coefficients
The averages of the values calculated by
λ
from the equation:
G
n
R
(
ω
)
=
a
+
∑
=
λ
R
(
x
,
ω
)
o
i
i
BV
k
1
With this equation it is clear that the values of the weighting c
o
efficients change
according to the spatial structure of rainfall. The calculations of
λ
have been used
once again, although this time t
he
range p has been increased from 1 to 128. Table
7.4 shows the digital values of
λ
and Figure 7.16 shows the increase in the range
of p from
1
to 128. The first observation is that if the range p is very small then the
value of
λ
tends to fluctuate towards 0.2. This means that the rainfall recorded in
the drainage basin is equivalent to the arithmetic average of the rainfall recorded by
