A high-resolution DEM had to be produced, since
there was not any other DEM available for this island,
particularly with such a high resolution of 2 m. Like
for the other map elements (see Section 4.2.1.1), a
large number of various topographic data (contour
lines, elevation points and drainage network) from
topographic maps 1:5000 of the area was compiled as
input data for the DEM generation. Contour lines,
trigonometrical points, spot heights, additional elevation
points, drainage network) were compiled in
vector format and structured in layers in a common
GIS (ArcInfo). The digital elevation model was produced
with a 2-m grid cell resolution.