The error due to different projection can only be neglected on extremely large scales. Google Earth does not display images in linear UTM projection. Often, major towns show a good resolution (often less than a meter), but not so outside urban areas.Ĥ. Google image resolution are not always good enough for spatial planning. If the images satisfy quality expectations on 3 or 5 or 10 m: Who knows?ģ. Google does not give any guarantee on accuracy. (As far as I know, only possible against payment).Ģ. Images can only be downloaded and used, when a user agreement has been settled. Google images are the intellectual property of Google or the image provider. It is therefore NOT recommended to use Google images for professional work. While it appears, that Google Earth has raster images, which can be used in LUPMIS and therefore no need to procure data, this is not feasible for a variety of reasons as explained below. Level of expertise required for this Chapter: Advamced general GIS training
A16.5 Surveying by distances from fixed points. A16.3 Surveying by close-compass traverse. A16.2 Surveying by open-compass traverse. A15.1 Population projected and planned population forecast. A6.7 Technical remarks to classifications. A6.3 Structure plan classification, 1st approximation. Classification for land use mapping and planning A2.4 Process of orthophoto map production. Background to cartography and raster images 7.5.5 Technical notes for Structure Plan. 7.2.1 Concept and preparation of land use map. 7.2 Land use mapping for Structure Plan. 5.4.7 Transfer GIS data to other LUPMIS installations. 5.4.4 Export LUPMIS data to other programs. 5.4 Communication with other GIS programs. 5.3.1 Import raster map from external source. 5.2.6 Convert vector data to raster map. 5.2.4 Import vector map from lat / long. 5.2.3 Import vector map from Ghana Grid (meters). 
5.2.2 Import vector map from Ghana Grid (feet). 5.2.1 Import vector map from external source. 5.1.5 Convert point coordinates from Ghana Clark 1880 (feet). 5.1.4 Convert point coordinates from Ghana War Office (feet). 
5.1.3 Convert point coordinates between projections. 5.1.2 Import list of points from Excel file. 5.1.1 Import list of points from text file. 4.9 Transfer attribute data from points to polygons. 4.5 Attribute matrix of multiple layers. 3.14 Transfer styles from one layer to another. 3.9 Move or copy individual features on a map. 3.5 Derive statistics (area size, length). 2.19 Digitize parcels from sector layout.
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