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Title
National reports

REPORT
OF THE FINNISH SOCIETY OF
PHOTOGRAMMETRY
1952—1956
GENERAL FEATURES.
Organization and equipment.
Official map-making in Finland is on the whole carried out on the basis of aerial photo
graphy. In addition aerial pictures are used for several other purposes. Official map-making
is now divided as follows: The Geodetic Institute carries out triangulations and leveling of
I Order with scientific accuracy. The main mapping authority The General Survey Office
has a Land Survey Department and a Geographical Survey Department, the latter divided
into five divisions. The Geodetic Division carries out lower o der triangulation and leveling.
The Photogrammetric Division is responsible for aerial pnotography, photogrammetrical
control extension and the making of controlled mosaics. The Topographic Division carries
out the field work for the base map, and in connection with it there is a map printing establish
ment. The Cartographic Division is responsible for the small scale mapping. The plan Survey
Division carries out plan surveys and schemes which are also ne by private surveying offices.
The Defence Forces Topographic Service, in cooperation with the General Survey Office,
supplies the maps required by the Defence Forces and undertakes the surveying of garrison,
training and other areas. The Topographic Service has a Geodetic, Photogrammetric and
Topographic section. The Photogrammetric Division of the General Survey Office and the
Photogrammetric Section of the Topographic Service are working in close cooperation using
partly the same methods. Their photogrammetric instruments are almost equal, consisting