GEOGRAPHY Glen Samaaiwesterncape gov za Ready for Gr
- Slides: 14
GEOGRAPHY Glen. Samaai@westerncape. gov. za
Ready for Gr 12 Map Work Exam!! Latitude GRADE 11 Directio n GIS Landforms LOCATION Calculations GRADE 1 0 GRADE 9 MAP READING GRADE 8 PRIMARY Map Interpretation LAND USE N SLOPES MAP Ortophot SYMBOLS os Cross Section Skills CONTOURS
N CO RD INA OO TES 33° 22’ 18” S 18° 34’ 42” E GHT VI INT SI E B R IL IT Y MAP SKILLS S HEI C SE RO C S TI S O N N IO CT NG RE RI DI A BE ON I T EC ER R I D IV R OF OW FL E W P CE A M EN R E F E R Contours Trig. Stations Spot heights Bench marks
DIRECTION Determine the bearing from the farmhouse to ∆ 210 Answer: SE or SSE
BEARING Determine the bearing from the farmhouse to ∆ 210 STEPS 149º 1. Draw North line at farmhouse (FROM). 2. Draw TO ∆ 210. 3. Use protractor to measure angle.
Representation of Height on Topographic maps • Contours • Trig. Stations • Spot Heights • Bench Marks
MAP REFERENCE 3318 DB PAARL
Map Reference 3318 DB PAARL Index map directly Southeast of 3318 DB Paarl? 3319 CC
CO-ORDINATES: From ° to ‘ to “
Inter-visibility 400 200 180 300 600 ● 654 600 m Nantes Dam ∆543, 1 Paarl. Rock 180 m School Paarl Rock is not visible from the dam Paarl Rock is visible from the school
Paarl Rock is not visible from the dam 654 m Gordon’s Rock Nantes Dam I cannot see Paarl Rock from Nantes Dam 600 m
D I R E C T I O N R I V E R F L O W
In what direction does the Steenbras River flow? Contours bend upstream Flows towards the sea (Mouth) 300 w o l h to 100 ws o l F ig h from Joining of tributaries Down stream Dam - wall down stream
