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Journal: International Journal of Civil Engineering and Technology (IJCIET) (Vol.9, No. 1)

Publication Date:

Authors : ;

Page : 200-210

Keywords : Cadastral map; Arial photo; GNSS; GIS; Geo-reference; RMSE.;

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The cadastral maps are important component of 1and property in most countries. Currently, the cadastra1 maps in Iraq are mainly available in paper sheet format. Detailed study shows 1ack of standard in these paper mapping products with out of date information. Considering the present situation in Iraq, this paper discusses updating spatial information, accurate geo-referencing of a cadastral map and elaborates the present cadastra1 mapping system and the methods used for producing and maintaining these cadastra1 data. The urban cadastra1 map with scale 1:500 are being updated with high resolution aerial photo using geographic information system (GIS) and GNSS (Global Navigation Satellite System). After the rectification process has been carried out using ERDAS software, urban cadastra1 map is prepared in the GIS environmental for updating process. The scanned cadastra1 map of the study area registered using Ground Control Point (GCPS) collected by a GNSS instrument. The features of cadastra1 map are updated by overlap the cadastral map with the rectified aerial photo of present study area with a unified system WGS84. The methodology presented in this paper is usefu1 to update the cadastra1 map with high accuracy. This study shows that time can be reduced to the half if the cadastra1 maps are generated using the newly developed technique.

Last modified: 2018-05-22 17:55:31