2.NEW DATASETS AND FURTHER ANALYSES
The integration of new datasets hasn't been so hard, because of
the adaptable organizations highly regarded during the first
planning.
Even the chance for users to choose their own queries or
comparisons is still alive. The basic structure of the relational
database, founded upon a triple core, is still kept: each datum
regarding a studied object is linked to: 1. a geospatial
reference 2. dating (time and chronological dimension is very
important in historical and archaeological studies) 3. source
(documentary ones or recently published works, because it
ensure the effective existence of datum).
Last year, humanistic studies collected information mainly
about fortified, ecclesiastical and settlement structures; they
even started to search for comunications routes, toll roads and
mining sites. At present, much more kinds of structures have
been investigated and catalogued: use of soil, examinig whether
they were wild or cultivated and what kind of farming was used,
hydrological networks and their exploitation, quarries and their
relationships with the ways of employment in buildings or how
stony materials were moved from extraction places. Another
type of objects involved and joined to the others among the
database, are those sites of transformation of row materials such
as water-mills or any kind of forges.
For almost everyone of these structures is extremely difficult to
find out the geospatial location: we keep very precise details
about many informations but we are not able to georeferencing
them by points on cartographic maps. We can only guess the
area where they were probably located.
Presently, the main aim is to single out the approssimative
shape and extension of regions mentioned above. The
researchers' interest is not in visualising geometric and abstract
areas such as circles; the expectation that exchanging data and
GIS analyses enable to spot places where the probability of
location is higher than elsewhere. So, next step consist in the
construction of a model, built up with the caracters requested
for a specific structure, and than, using spatial anlyses that GIS
can manage; the system then, compares data and is able to
choose what region match better with queries.
This is the reason why a very large chance of temathic basis is
needed. The comparisons have to be applied considering the
richness that different points of view can provide. It mean that is
useful to overlay information (spatial and heterogeneous ones)
coming from different fields of study working on the field; the
basic criterium heading every next procedure consists in using
only one cartografic representation system.
3. SELECTED AREA FOR MASTERING
The selected area is the valley where the river-head of the most
important river of North Italy is placed. It's Po valley and GIS
queries informed us that the existance of ancient structures was
particularly rich downhill. It's not a simply coincidence that just
there, one of the main monasteries of the whole Marchesato di
Saluzzo was settled (the Marchesato di Saluzzo is the territory
chosen as the large studying area). Informations about the new
structures counted in the latest census, and than catalogued in
the database, have been extracted from a particular collection
of documents, called Cartario, that monasteries used to manage
their influence area. This kind of collections are extremely
important to understand how strong was the control of the
ecclesiastic structure on the land and on people. These papers
are about deeds of gift, sales contracts or other kind of
agreements, so, examining them, we can outline the balance of
powers in the area.
The monastery of Rifreddo is placed near to the mouth of Po
Valley: moreover it has been known that in the higher part of
the valley there were mines, and lower, the area is rich of
quarries. Considering this simple information it's clear what are
the aims of the relationships between historical and
archaeological studies and geology or Botany. It thus necessary
to verify and furtherly discover how powerful could be a GIS
application, planned with new surveing tecniques, to reconstract
a non existing anymore situation.
Next pictures with their captions have the purpose to explain
some application samples.
Fig. 1 — The selected area: Po Valley. The
picture shows a small set of topografic
layers provided by Piedmont Region. This
kind of simplified map, since it’s vectorial,
is very useful to manage particular spatial
analyses aimed to compare objects
concerning the medioeval scenery and
idrology, built-up areas etc.
/ PARINIANA P) cU
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