SESSION A - Istanbul Congress 2011

needmoreneedmoreΔιαχείριση Δεδομένων

28 Νοε 2012 (πριν από 4 χρόνια και 11 μήνες)

214 εμφανίσεις

THE ARCHAEOLOGICAL DIGITAL CARTOGRAPHY OF HIERAPOLIS
IN PHRY
GIA (TURKEY)


Di Giacomo Giacomo
, Scardozzi Giuseppe


Consiglio Nazionale delle Ricerche
-

Istituto per i Beni Archeologici e Monumentali, Lecce, Italia,
g.digiacomo@ibam.cnr.it;

g.scardozzi@ibam.
cnr.it


Keywords:
archaeology, cartography, geospatial database


Abstract

The project
to draw up a
n

archaeological digital cartography

of Hierapolis in Phry
gia was born

thanks to

the experience

gained during the production of the Atlas of Hierapolis in Phr
ygia, published in 2008. This work highlighted the
necessity to create a cartographic digital product that could be continually updated
, ch
anged and completed in case of
new discoveries from the archaeological
excavations and
surveys guided
yearly
by
the I
talian Archaeological Mission
(director p
rof
.

Francesco D’Andria).

Starting from a vectorial cartographic base
, already existing a
nd created by the architects of

the
Polytechnic of Turin
,
the topographers of CNR
-
IBAM
created, contextually to the researches

on the ground, a geospatial database
struc
tured
into
PostGreSQL (with PostGIS extension) and capable of containing both the geomorphological information and the
a
rchaeological ones, connecting with

each information a series of

descriptive
metadata

of the
single entities
.

In particular, the first step was the creation of a logical pattern of the digital cartography: this pattern is useful both t
o
identify the entities to treat inside a complex system of geospatial information, and to clarify
, univocally, th
e existing
connection among the entities, often of different nature, that together compose the cartography.

This propaedeutical phase was followed by the production of a physical pattern of the cartography

that is functional to
identify a standard procedu
re of representation inside the management system of the data entities

and the connections
described in the logical pattern, considering the
limits

imposed by
the system itself (
limits

con
nected with

the kind of
treated data

or with

the general performance
s of the database server, etc.).

Then,
the different layers of the vectorial cartography have been collected in homogeneous groups containing the same
typology of information, distinguishing the geomorphological
and archaeological levels

from the ones rela
ted to the
modern structures.

The organization of these levels
also allowed

they could be structured in logically similar and
physically coherent tables
; after, vectors constituting the entities have been transferred

in
to

a PostgreSQL
database
with
PostGIS

extension, associating to each single vector, if necessary, information regarding the represented entity.

As for
geomorphology, for example, the kind of element has been specified (contour line, water course
, etc.), as for
archaeology, instead, the kind o
f monument and its dating.

This work has been repeated for each element composing the cartography
.

The product is an archaeological digital
map
, completely ed
itable, that can be updated both entering new cartographical
entities and introducing further meta
data useful to complete the dataset of information regarding a single monument.
This tipology of cartography, perfectly in accordance with

the technology of the modern geographical systems for the
land management, is already web
-
oriented: the entire databa
se can be interfaced to a cartographical engine

for the web
(
e.g.
UMN Mapserver
). Moreover, thanks to

the already known technologies for the remote sharing of geospatial
information, the cartography can be displayed and updated (o
r

modified)

by different t
eam taking part in the researches
of the Italian Mission of Hierapolis in Phrygia or used as basis for popular online products.