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Map Conventions. Latitude and Longitude Magnetic Declination.

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Presentation on theme: "Map Conventions. Latitude and Longitude Magnetic Declination."— Presentation transcript:

1 Map Conventions

2 Latitude and Longitude

3

4

5

6 Magnetic Declination

7

8 Migration of magnetic north pole

9 Magnetic Declination

10 Scale

11 Using Scale

12

13 Topographic Maps

14 Topo Maps

15

16

17 Topo Maps - Bathymetry

18 Topo Maps

19

20 Topo Maps and Contour Interval What is the contour interval?

21 Topo Maps and Contour Interval

22 Topo Maps and Gradient Note how gradient is reflected in spacing of contour lines. Close together = steep Far apart = minimal slope

23 Topo Maps and Gradient Calculating gradient Rise over run 1,250 ft/5 miles

24 Topo Maps and Streams

25 Topo Maps and Depressions


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