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MAP PROJECTIONS USED IN ROMANIA FOR MILITARY PURPOSES: LAMBERT-CHOLESKY AND GAUSS- KRUGER

Lect. Dr. Eng. Doina Vasilca, PhD Student Eng. Andreea Iliescu-Cremeneanu, Assoc. Prof. Dr. Eng. Ana-Cornelia Badea, Prof. Dr. Eng. Gheorghe Badea

First published: 2017-06-20https://doi.org/10.5593/sgem2017/23/s11.072View metrics

Abstract

The current article presents two map projections used in Romania mainly for military purposes, namely Lambert-Cholesky (from 1917 to 1931) and Gauss-KrпїЅger (from 1955 to 1971). After a brief description of their individual characteristics and particularities of application in our country, a comparison of the distortions produced by both projections was presented in order to emphasise their various advantages. The accuracy of relief representation using contour lines on maps drawn to scales of 1:20,000 and 1:25,000 in the above projections were also subjected to comparison. Both map projections presented therein are conformal. Therefore, with regards to their linear and areal distortions for Romanian territories, they are negative in the Lambert- Cholesky projection and positive in the Gauss-KrпїЅger projection. The absolute values of the distortions are almost double in the Lambert-Cholesky projection compared to Gauss-KrпїЅger. In order to compare the accuracy of relief representation, ten transverse profiles were made between the same points identified on maps in both projections. Only minor differences were observed, proving that the elevations were determined by comparable methods in terms of accuracy.

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Publication details

Title
MAP PROJECTIONS USED IN ROMANIA FOR MILITARY PURPOSES: LAMBERT-CHOLESKY AND GAUSS- KRUGER
Authors
Lect. Dr. Eng. Doina Vasilca, PhD Student Eng. Andreea Iliescu-Cremeneanu, Assoc. Prof. Dr. Eng. Ana-Cornelia Badea, Prof. Dr. Eng. Gheorghe Badea
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing
Publisher
STEF92 Technology
Year
2017
Pages
581-588
SWS Citekey
Vasilca201711581588
ISSN
1314-2704
ISBN
978-619-7408-03-4
Language
en
Publication type
Conference Paper
Keywords
Lambert-Cholesky map projectionGauss?Kr?ger map projectionmap distortion
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