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number of university departments in our field have gone so far as forging new geomatics
departments, amalgamating former surveying, photogrammetry, remote sensing and
cartography departments. 7 hose that did so still have specialization options and do not
require the whole field to be studied intensively. A less far-reaching integration is that
of extending the curriculum towards those other mapping sciences with which one feels
most affinity. An example will be given for cartography and remote sensing.
Compatibility with other mapping sciences
When looking at the production of geoscientific maps, several methods have been
developed in recent years to interpret the spectral information provided by satellites
into classes of vegetation types or land cover. Common methods are e.g. the supervised,
unsupervised and deterministic methods (which uses transformation models such as the
normalized vegetation index). The common feature of these methods is that they
change the original spectral reflection data in the image into values representing
individual classes. From these classified images, ordinary thematic maps can be derived.
These image processing techniques and classification methods are now available on
most remote sensing systems. Cartographers can use these facilities and add their
knowledge about geometry, computer graphics and communication science to make
correct cartographic products.
In order to establish compatibility with remote sensing specialists, cartographers need
some basic knowledge of remote sensing techniques in order to be able to communicate
with these specialists. So the basic principles of electromagnetic radiation, of platforms
and sensors, digital image processing (correction, enhancement and transformation
techniques, the latter to compress the large amount of data or to link image data of
different flights) need to be taught.
Joint elements
The common elements that are the ratio for integration are the joint preoccupation with
spatial information, with Geographical Information Systems or Land Information
Systems, and with structuring data for databases. There is also a joint regard for the use
of spatial information, and for the integration of spatial data from different sources, like
fieldwork data, maps, aerial photographs or satellite images.
Two different approaches can be seen here: geomatics adepts with a photogrammetric
background tend to state their approach in terms of accuracy: if a solution to a given
problem is to be found, what kind of accuracy, what topographic or taxonomic level of
detail is necessary for the information to be gathered? The cartographic approach
would be to incorporate man as well in this information flow and therefore to experi
ment as long with visualizing the data till one would be certain that the appropriate
spatial image would be communicated to the decision maker or scientist that has to
analyse the problem.
It is the identification of these common elements that is the principal gain of the
integration process, as this will at least mean the possibility of joint courses, and savings
accordingly. These joint courses will also see to it that the students of the various
directions in the mapping sciences have a common body of concepts and speak a
common language. That their outlook on the process of providing and communicating
spatial information differs and will diverge more and more after specialization is of less
importance, given this common background.