出版社：National Centre for Maps and Cartographic Heritage
摘要：The geodetic point lists of the Habsburg survey of the Italian peninsula, carried
out in several steps after the Napoleonic wars, were digitized and analyzed together with
the modern coordinates of the identified points. Assuming the usage of the Zach-Oriani
hybrid ellipsoid, the Burša-Wolf type datum transformation parameters were estimated
between the local, historical triangulation Datums and the WGS84. The results show
interesting accuracy differences in the Italian regions; since the points and coordinates in
Lombardy, Piedmont and Lucca shows surprisingly high accuracy and consistency, the
survey of Venice, Tuscany, the Papal State, the Adriatic coasts and the Kingdom of
Naples is less controlled. The results enabled us to geo-refer the corresponding map
series, stored in the Austrian Military Archives, in Vienna, in four different parts. Venice,
Lombardy and Lucca (with other small regions at their southern border) were a part of the
Habsburg Second Military Survey, with same scale and technology and legend. Part of
the series of Piedmont was also found in the Vienna archives and geo-referred. South of
these regions, Tuscany and the Papal State was mapped in 1:86400 scale, in a Cassini
projection with the centre in the Duomo S. Salvatore, Milan. The southernmost
systematic mapping work in the peninsula was in the Kingdom of Naples in the 1820s,
with the same scale as used in mid-Italy, projection centre was in Capodimonte (Naples).
Albeit the relatively high accuracy of the geodetic network, these map mosaics are
refined horizontally applying a local correction grid (GSB) to keep the horizontal errors
below 200 meters.
关键词：historical maps; Italy; Habsburg cartography; 19th century; georeferenced
