VIIIth International Congress of Photogrammetry: Reprints of papers

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

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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:: English

Other Title:: Paralleltitel: 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:: 1048998053

Title:: Reprints of papers

Sub title:: VIIIe Congrès International de Photogrammétrie

Scope:: circa 1040 Seiten in verschiedenen Seitenzählungen

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048998053

Illustration:: Illustrationen

Signature of the source:: ZS 312(12,4b)

Language:: French

Other Title:: Tirages a part

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

Section

Title:: [Commission VII]

Write comment:: Nicht alle Vorträge enthalten

Document type:: Multivolume work

Structure type:: Section

b Appendix to the INT. ARCHIVES OF PHOTOGRAMMETRY, Vol. XII:4, 1956 Effect of Photo Scale on the Use of Aerial Photographs in Swedish Forestry Bulletin from the Committee of Forest Photogrammetry By Hans Axelson Nowadays airphotos are used to a large extent for various purposes in Swedish forestry. À fixed photo scale cannot be expected favourable for all the different applications of aerial photos in forestry. Hitherto, however, it has not been regarded justified, for economical reasons, to use different scales for different purposes. It is important, therefore, to find out the scale which is hest suited for the different applications. As aerial photography is more economical the higher the flying allitude is, it is of interest to know the highest altitude from which pictures can be taken without their usefulness in forestry being too limited. The scale question has not been much dealt with in literature. According to Spurr: Aerial Photographs in Forestry, New York, 1948, the scale 1: 26 000 is the smallest practical scale for forestry purposes and 1:16 000 the ideal scale. In a report from Forest- Inventories Section, Department of Affairs and National Re- sources, Ottawa, Canada, in 1955, it is pointed out that the scale 1: 16 000 has been found very little superior to the scale 1: 35 000. The Committee of Forest Photogrammetry has found an urgent need to carry out research work on photo scales. The Geogra- phical Survey Office kindly contributed to the performance of the work by taking the photographs required. Erik Welan- der was helpful in the planning of the work. Personell of the Central Land Survey Office contributed by making measurements and S. G. Móller took part in the planning of the investi- gations. For technical questions Prof. B. Hallert, Head of the Division of Photogrammetry at the Royal Institute of Tech- nology, was contacted. The Committee's work has been done by the author in co-operation with L. Lindskog and V. Bon- desson.

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