Abstract:
Topography is basic to many earth surface
processes. It is used in analyses in ecology, hydrology,
agriculture, climatology, geology, pedology, geomorphology,
and many others, as a means both of explaining processes
and of predicting them through modeling. Through this
paper we consider the implementation of an algorithm for
representation of real elevation data in MATLAB. This
algorithm takes the DEM (Digital Elevation Model) data and
constructs a 1201x1201 elevation matrix corresponding to a
tile of 1 degree latitude and degree longitude. The DEM data
was obtained by NASA’s SRTM mission in 2000 and was
made publicly available in June 2004. This offers an almost
worldwide coverage of elevation data that can be further
analyzed in MATLAB, for example for finding the pattern
for water flow accumulation.
