Geoscience Reference
In-Depth Information
measured at each of the
n
points will mitigate these measurement errors; to
solve the latter we set up a harmonization process that will be described
next.
2.2 Harmonization
The classification of the river sections, with the consequent collapse from
area to line, may lead to unwanted abrupt changes in the representation of
the river (see
Figure 3c
). This may be caused by a wrong evaluation of the
width of a river section (e.g. because the section length is similar to the
sampling measure
d
) and, as an error, it should be correct; in other cases
instead the width assessment is correct but nevertheless the result should
be changed as it is aesthetically unpleasant (e.g. see
Figure 3d
).
The harmonization algorithm is triggered by the following situations:
1.
area to line collapse of small sections of braided river;
2.
rough appearance of the confluence of an area river section into a line
river section,
3.
a river represented with a sequence of area, line, area, line sections.
The solution to these problems is to analyze the neighbors of each river
section that had been collapsed and to override the new classification or to
change the shape of the neighboring areas.
Figure 3:
examples of sections that need to be harmonized.
