VIIIth International Congress of Photogrammetry: National reports

Fagerholm, P. O.; Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Bibliographic data

Multivolume work

Persistent identifier:: 1048861678

Title:: VIIIth International Congress of Photogrammetry

Sub title:: Stockholm, Sweden, July 17 - 26, 1956

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048861678

Language:: French

Other Title:: VIIIe Congrès International de Photogrammétrie

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Document type:: Multivolume work

Volume

Persistent identifier:: 1048997537

Title:: National reports

Sub title:: Stockholm, Sweden, July 17 - 26, 1956

Scope:: 1 Online-Ressource (circa 260 Seiten in verschiedenen Seitenzählungen)

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048997537

Illustration:: Illustrationen

Signature of the source:: ZS 312(12,2)

Language:: French

Other Title:: Paralleltitel: Rapports nationaux

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Contributor:: Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: REPORT OF THE FINNISH SOCIETY OF PHOTOGRAMMETRY 1952 - 1956

Document type:: Multivolume work

Structure type:: Chapter

Finland 8 RMK 10/18 X 18 and the RG 5 a -Aviogon. Contour lines have been traced with intervals of 1, 2 or 5 m. Also an aerotriangulation by the Ekelund-method, comprising 240 km 2 has been executed. In addition to this, a private company has mapped 113 km 2 with a Wild A 8 in 1 : 4 000, one-meter contours, photographed with the Aviogon. Other applications of aerial photographs. Since 1948, rectified enlargements or »photo sheets» at 1 : 4 000 have been used as a basis for communal tax equalization maps. For this purpose the communities are photographed with a normal-angle camera to the scale 1 : 20 000. For determining the enlarging ratio a scale check line is measured in the field on about every second or third picture. The property boundaries are transferred on the enlargements from cadastral maps. In the field the soil is classified according to its value for farming or forestring purposes, and the results are compiled on the enlargements. The:e tax equalization maps 1 :4 000 are now covering an area of about 120 000 km 2 , which is about 60 % of the whole country, excluding the very sparsely settled northernmost part. The percentage of the photogrammetric work from the total cost of tax equalization mapping is about 20, which shows that the employment of aerial photography has definitely improved the production of map basis for so far-reaching a work as this. In recent years the use of aerial photographs in preliminary investigations for highway planning and in mapping of the highway areas has started in Finland. The route to be investigated is initially planned using stereophotographs 1 : 20 000, which give the relief of the terrain and also the approximate quality of soil according to the vegetation. After the approximate highway line is stereoscopically selected, partial enlargements 1 : 2000 of the pictures are made covering the line with an about 1 km wide strip. From these enlargements, made on transparent paper, inexpensive light copies are taken for working maps. During the field investigation property boundaries, relief features, buildings, different types of land and other necessary features along the planned line — which can be altered in the field — are compiled on the photo enlargements, thus getting a map which is suitable for the final technical planning of the highway. Rectified enlargements of aerial photographs at scales 1 : 1 000— 1 : 4 000 are also used as map basis for planning ditching and land clearing as well as drain- i n g and water supply investigations. These plans cover about 350 km 2 annually. The plan is plotted on the enlargements mads on transparent paper, thus being possible to get light copies which contain both the map base and the plan. Rectified enlargements are also used for planning of new cable lines and mapping the old ones. Suomalaisen Kirjallisuuden Kirjapaino Oy Helsinki 1956

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