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COMPATIBILITY BETWEEN MOBILE GEOPOSITIONS AND LOCAL MAPS IN IRAQ | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 21, Issue 2, 2017, Pages 15-27 | ||
| Author | ||
| Ruba Yousif Hussain | ||
| Abstract | ||
| The paper aims to make the coordinates obtained from global positioning systems compatible with local maps in Iraq for mobile locations . Therefore , number of control points have been selected in the study area . Both geographic and map projection coordinates are measured using mobile geopositions based on Universal Transverse Mercator ( UTM ) projection and World Geodetic System ( WGS 1984 ) datum . The measured geographic coordinates are transformed to map projection in Iraq using geographic information system ( GIS ) depending on Clarke 1880 ellipsoid . ArcGIS model builder is designed to implement coordinates transformation . Field calculator scripts are written by Python programming language . Differences between the measured and transformed coordinates are determined . The results show that the differences in northing coordinates are about ( 278.6 m ) and the percentage of difference to this value is ( 0.6 % ) , while the differences in easting coordinates reach to ( − 287.6 m ) with its percentage of difference equals to ( 0.4 % ) in the study area . It is concluded that positions discrepancies should be considered in map production and updating for engineering works . | ||
| Keywords | ||
| GeoPosition; WGS; Clarke; ArcGIS; Model builder | ||
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