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dc.contributor.authorSugiura, Kuniro
dc.contributor.authorTsukahara, Kazuo
dc.contributor.authorKozawa, Sachio
dc.date.accessioned2020-02-20T10:38:46Z
dc.date.available2020-02-20T10:38:46Z
dc.date.issued1967
dc.identifier.urihttp://hdl.handle.net/1834/16432
dc.description.abstractAerial triangulation is a function of deciding the geodetic coordinate of photo points used for orientation by using aerial photographs and some control points. If these photo points can be used as the controls for hydrographic survey, the hitherto land triangulation will be replaced by the aerial triangulation. However, as we carried out the aerial photography only along the shoreline due to practical and economical point of view, the image of distribution of land and water is shown on the almost all photographs. Therefore, photo models and strip models used for triangulation are obliged to become imperfect, so that we must consider several problems on the accuracy of aerial triangulation. Since 1964, we have utilized the analytical aerial triangulation in the harbour survey. However, in the present time we are obliged to analyze and discuss the accuracy of aerial triangulation carried out with the imperfect models from the above consideration, in order to find the working guide for the future surveys. In this paper, firstly the practice of the analytical aerial triangulation in our Division is explained, and secondly, analysis of the results obtained during about 3 years is discussed. Finally, we will show the results of the check survey on the controls for hydrographic survey in the Simizu-Okitu district and the trial on the correction of the position error of these controls.en_US
dc.language.isojaen_US
dc.relation.urihttps://www1.kaiho.mlit.go.jp/GIJUTSUKOKUSAI/KENKYU/report/rhr02/rhr02-02.pdfen_US
dc.titleOn the analytical aerial triangulation for hydrographic survey.en_US
dc.title.alternativeApplication of photogrammetry to hydrography (4).en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue2en_US
dc.bibliographicCitation.titleReport of Hydrographic and Oceanographic Researchesen_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.13-26en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:48:38Z


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