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Technical Considerations of Using Datum and Map …
1 Implications of Geodesy, Spatial Reference Systems, and Map Projections in Processing, Conversion, Integration, and Management of GIS Data Larry ZHANG eMap Div., Integrated Solution Services Dept, Saudi Aramco C-121 West Park #1, Dhahran 31311, Saudi Arabia Phone: (966 3) 874-8187; Fax: (966 3) 874-8339 Email: Copyright Saudi Aramco 2005 Keywords: geodesy, Datum , coordinate system, map projection, engineering surveying, CAD drawing, GIS, RS, GPS measurements, data processing, conversion, integration, management Abstract Geospatial datasets are collected from a huge variety of sources, including field surveying, spatial-enabled CAD drawings, GIS; GPS measurements, satellite sensors or airborne missions, with an equally large variety in quality, accessibility, confidence, and references. Most engineering surveying traditionally was carried out on local scales Using terrestrial equipment such as theodolites and levels to establish positions with respect to nearby control stations (points).
1 Implications of Geodesy, Spatial Reference Systems, and Map Projections in Processing, Conversion, Integration, and Management of GIS Data Larry ZHANG
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