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Class notes

Mapwork (including GIS)

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These Grade 12 Geography notes comprehensively cover Map Work and Geographical Information Systems (GIS), providing all the essential skills and knowledge needed for exams. The Map Work section explains key concepts like direction, bearings, scale, distance, area, gradient calculations, and cross-s...

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  • August 20, 2024
  • 11
  • 2023/2024
  • Class notes
  • Nicole duarte
  • Mapskills & gis
  • 200
avatar-seller
14 Feb 2024
Skills

Mapwork

, Direction
Example:
N Give direction from trig beacon 205 to Karoo
botanic gardens
NW NE
NNW NNE
WNW ENE
W E &
·




WSW ESE
G




SSW SSE
SW SE

S



• ESE

Map Index
19°E
19°E 20°E



W
33°S
A B E.g. Show where the
map Worcester
33°S
A B would appear in SA
C D map index
Major C D
> 3319CB >

34°S
mp Longitude 7 Minor
Latitude

Eg. Identify the map index of the map found directly south of Worcester
3319CD

Latitude & longitude: Find out trig


*
E 1cm beacon 205
3,1cm E
S 4cm 33°36’15”S
3,5cm
Co
1/4 x 60


19°25’53”E


3,1/3,5 x 60

Finding coordinates
1°= 60’ degree - minutes
1’=60” minutes - seconds

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