Annex 8: Data Request for GIS
The primary data used at the LUPMIS are orthophotos (georectified, recent, flown for the Project, in georeferenced TIF format). This is used for:
- Orientation in the field (hardcopy prints, prints from GIS, display on GPS)
- Base for spatial land use identification in the field, in cooperation with the community (see Chapter 2)
- Base for land use mapping (see Chapter 9)
Figure A8.1: Orthophoto, 2005, location at Kasoa junction (5.534° N, 0.426° W)
Figure A8.2: Orthophoto, 2005, location 1 km W of Kasoa junction
Auxiliary, but very important for land use planning, are following data, which have been requested and/or attempt will be made to collect them. Unless specified, they should cover all of Ghana.
- Topography: Contour lines, at the highest possible equidistance (5 or 1 m)
- Topography: Trigonometric / topographic points
- Hydrology: River lines, with drainage classes
- Hydrology: Waterbodies
- Road network (including railroad), with road classes
- Land use, whatever level of detail is available, with land use classification
- Settlements: Built-up areas (as polygons): Urbanized (5000+) including villages
- Settlements: Location of settlements / gazetteer (as points), preferably with census data 2000
- Administrative boundaries: Nation, Regions, Districts, enumeration areas etc,
- Reserved areas: Parks, reserves, protection areas, etc
- Infrastructure: Sites of schools: Primary, secondary, etc
- Infrastructure: Sites of worship: Churches, mosques, etc
- Infrastructure: Sites of water supply: Borholes, and similar
- Infrastructure: Sites of government services
- Infrastructure: Sites of medical care: hospitals, clinics, etc
- Infrastructure: Power supply, power lines, etc
- Infrastructure: Utilities (electricity, water, sewage, telephone) for selected sites, whatever is available, preferably for our first priority areas (Kasoa, Ejisu, Asankagua)
- Development: Sites of proposed development or construction, e.g. tourism, mining, roads, approved by respective authority, e.g. DA, MLFM, MoTransport, MTDA, as polygons, polylines or points
- Geology: Geology, parent material, tectonics, soil distribution (fertility, particle size)
- Digital Terrain Model
- Hillshade, if already processed
- Satellite images, e.g. QuickBird, Spot, Landsat, as far as available
- Cadastral data for our first priority areas (Kasoa, Ejisu, Asankagua)