Geography Reference
In-Depth Information
Output grid
(3 3 cells)
location
is shaded
45 44 44 43 42
43 42 39 36 41
40.11
39.11
4.68
4.66
3.62
38 32 34 35 38
38.78
38.33
37.11
37.44
3.61
3.26
2.19
39 41 37 38 39
36.56
36.00
36.22
3.50
3.57
2.68
32 41 35 31 39
Input grid
Mean
Standard deviation
Figure 10.4
Mean average and standard deviation computed for a 3
¥
3 pixel moving window.
Evalution (m)
Value
High : 753
N
Low : 1
Inland water
0
20
40 km
Figure 10.5
Elevation: Northern Ireland. Data available from the United States
Geological Survey/EROS, Sioux Falls, SD.
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