1 / 36

Basic Reference Certificate Geography Revision Exercises – Issues & Map-Reading P.49-76

Basic Reference Certificate Geography Revision Exercises – Issues & Map-Reading P.49-76. HKCEE MAP READING SKILLS :. Basic Map Reading Skills: Check List. Conventional Signs Grid References Scales Direction Gradient Cross-section & Relief Features. Conventional Signs . Reference - WB:49.

kris
Download Presentation

Basic Reference Certificate Geography Revision Exercises – Issues & Map-Reading P.49-76

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Basic ReferenceCertificate Geography Revision Exercises –Issues & Map-Reading P.49-76 HKCEEMAP READINGSKILLS:

  2. Basic Map Reading Skills:Check List • Conventional Signs • Grid References • Scales • Direction • Gradient • Cross-section & Relief Features

  3. Conventional Signs • Reference - WB:49

  4. Conventional Signs • Reference - WB:49

  5. Conventional Signs • Reference - WB:49

  6. Conventional Signs • Reference - WB:49

  7. Conventional Signs • Reference - WB:49

  8. Conventional Signs • Reference - WB:49

  9. Grid References (WB:51-52) • to tell locations on a map • two sets of lines • vertical – eastings (number values increase eastwards) • horizontal – northings (number values increase northwards) • grid square  4-figure • location  6-figure

  10. Grid References

  11. Grid References(WB:53) 147343 1132

  12. Scale (WB:54-55) • to show the number of times that the actual size of the ground has been reduced • helps us find out real distance / area from the map

  13. Scale • Statement Scale • describes the scale in words • e.g. 1 cm to 200m • Representative Fraction (R.F.) • shows scale in the form of a fraction / ratio • e.g. 1:20000 • Linear Scale • uses a line to show the scale • e.g.

  14. Direction • Reference – WB:59

  15. Direction • Reference – WB:59

  16. Direction • Reference – WB:60

  17. Cross Section

  18. Cross Section

  19. Cross Section

  20. Cross Section

  21. Cross Section

  22. Vertical Exaggeration • Reference – WB:72

  23. Vertical Exaggeration

  24. Vertical Exaggeration

  25. Relief Features • Reference – WB:65-68

  26. Relief Features

  27. Relief Features

  28. Relief Features

  29. Relief Features

  30. Relief Features

  31. gentle slope • steep slope • concave slope • convex slope • stepped slope • spur • valley • hill • ridge • saddle

  32. Gradient

  33. Gradient

  34. Gradient

  35. Gradient

  36. A B Calculate the Average Gradient of the Stream from A (source) to B (bridge) A: 340m Gradient: 1 in HD/VD HD: measured actual length of the red line is 7.5cm Map Scale is 1 : 20000 Actual Distance: (7.5 X 200)m = 1500m B: 80m VD: 340m – 80m =260m Gradient: 1 in 1500m/260m = 1 in 5.8

More Related