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A6.5.9 Hydrology Classes (in style file Rivers.stl, only polygons and lines)
For information in file (district)_rivers.dra and (district)_waterbodies.dra:
Style No |
Name |
Type |
Remarks |
1 |
River 1.category |
Line |
|
2 |
River 2.category |
Line |
|
3 |
River 3.category |
Line |
|
4 |
River 4.category |
Line |
|
5 |
River 5.category |
Line |
Temporay, sporadic river |
6 |
Lake |
Polygon |
|
7 |
Reservoir / man-made lake |
Polygon |
|
8 |
Seasonal lake |
Polygon |
|
9 |
Pond |
Polygon |
|
10 |
Lagoon |
Polygon |
|
11 |
Swamp / marshland |
Polygon |
|
12 |
Riverbody |
Polygon |
|
13 |
Sea |
Polygon |
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A6.5.10 Administrative Boundary Classes (in style file Admin.stl)
Style No |
Name |
Type |
Remarks |
1 |
National boundary |
Line |
|
2 |
Regional boundary |
Line |
|
3 |
District boundary |
Line |
|
4 |
Town boundary |
Line |
|
5 |
Neighbourhood boundary |
Line |
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A6.5.11 Tourist Sites Classes (in style file Touristsites.stl, only points)
For information in file (district)_touristsites.dra:
Style No |
Name |
Type |
Remarks |
1 |
Fort / castle |
Point |
|
2 |
Beach resort |
Point |
|
3 |
Hotel / guesthouse |
Point |
|
4 |
Nature reserve |
Point |
|
5 |
Leisure |
Point |
|
6 |
Other tourist activity |
Point |
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A6.5.12 Minerals Classes (in style file Minerals.stl)
For information in file (district)_minerals.dra:
Style No |
Name |
Type |
Remarks |
1 |
Gold |
Point |
|
2 |
Bauxite |
Point |
|
3 |
Iron ore |
Point |
|
4 |
Kaolin |
Point |
|
5 |
Manganese |
Point |
|
6 |
Limestone |
Point |
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A6.5.13 Contour Classes (in style file Contours.stl)
For information in files (district)_contours.dra:
50 feet (!) contour lines (only lines). Altitude is entered as labels (in feet).
Similarly: (district) _contours100.dra with 100 feet contour lines.
Style No |
Name |
Type |
Remarks |
1 |
50 ft asl |
Line |
|
2 |
100 ft asl |
Line |
|
3 |
150 ft asl |
Line |
|
... |
... |
Line |
|
20 |
1000 ft als |
Lines |
|
... |
... |
Lines |
|
40 |
2000 ft asl |
Lines |
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A6.5.14 District and Region
For information in files (district)_region.dra and files (district)_district.dra:
The style number is equal to the Region number: (see also Annex 9.5)
Style No |
Name |
Type |
Remarks |
1 |
Greater Accra |
Polygon |
|
2 |
Central Region |
Polygon |
|
3 |
Western Region |
Polygon |
|
4 |
Eastern Region |
Polygon |
|
5 |
Ashanti |
Polygon |
|
6 |
Volta |
Polygon |
|
7 |
Brong Ahafo |
Polygon |
|
8 |
Northern Region |
Polygon |
|
9 |
Upper West |
Polygon |
|
10 |
Upper East |
Polygon |
The id contains the number of the Region (e.g. 7, same as above) or of the District (e.g. 702), the display label the name of the Region/District. See also Annex 9.9.
Technical note: Keep the national file 'Ghana_district.dra' as the master file, where subsets are copied to form regional and district _region and _district.dra files (just like Ghana_roads.dra).
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A6.5.15 Growth Zone
For information in files (district)_growthzone.dra (in the SDF folder):
This defines the annual growth rate of all settlement per zone. Styles can be 1,2,3..., but strict syntax is required for the display labels in form of a-b-c-d-e-f-g-h, where:
a is growth rate of grade 1 and 2 settlements in near future (e.g. - 2023),
b of grade 3 settlements in near future (e.g. - 2023),
c of grade 4 settlements in near future (e.g. - 2023),
d of grade 5+ settlements in near future (e.g. - 2023),
e of grade 1 and 2 settlements in further future (e.g. 2023-2033),
f of grade 3 settlements in further future (e.g. 2023-2033),
g of grade 4 settlements in further future (e.g. 2023-2033),
h of grade 5+ settlements in further future (e.g. 2023-2033),
e.g. 4.6-5.3-4.1-3.7-4-5-4.5-4).
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A6.5.16 Ecological Risk
For information in files (district)_ecorisk.dra:
Style No |
Name |
Type |
Remarks |
1 |
Wetlands |
Polygon |
|
2 |
Flooding |
Polygon |
|
3 |
Earthquake |
Polygon |
|
4 |
Water pollution |
Polygon |
|
5 |
Erosion (slope) |
Polygon |
|
6 |
Erosion (coast) |
Polygon |
|
7 |
Groundwater |
Polygon |
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A6.5.17 Forests
For information in files (district)_forest.dra:
Style No |
Name |
Type |
Remarks |
1 |
Forest reserve: Protected |
Polygon |
|
2 |
Forest reserve: Protected - partly degraded |
Polygon |
|
3 |
Forest reserve: Timber production |
Polygon |
|
4 |
Forest reserve: Timber production - partly degraded |
Polygon |
|
5 |
Forest reserve (unconfirmed) |
Polygon |
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A6.5.18 Single Area Coverage Maps
Following maps are only to indicate the coverage and have therefore only style: 1
Footprint, for files (Sector Layout)_footprint.dra
SDF Area, for files (District)_SDFarea.dra
Structure Plan Area, for files (District)_StrPlarea.dra
Sector Layout Overview Map, for files (District)_SLoverview.dra
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A6.5.19 User-Defined Consecutive Class Numbering
For any additional, non-standard maps with a specific classification, these classes should be documented in a TXT file in the same directory as the main DRA file.
In most cases, these will be consecutive numbers.
Examples:
Neighbourhood
Councils
Soil series or associations
Population density
They use the style file Default.stl'.
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Technical note for other master data:
- Keep the regional census data as the master database, where all data are entered to and from where the district database will be derived.
- For permit data there is only one database, which is at the district level (There is no 'regional permit database').