Land Navigation LE-2504 Map Reading D E F I N I T I O N S §Map : A Drawing of the Earth as seen from an airplane §Map Scale : The Ratio of Map Distance.

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Presentation transcript:

Land Navigation LE-2504 Map Reading

D E F I N I T I O N S §Map : A Drawing of the Earth as seen from an airplane §Map Scale : The Ratio of Map Distance to Ground Distance §Marginal Information : Information found in the outer edges of a map

Marginal Information §Series Name § Sheet Name §Sheet Number §Bar Scale

Marginal Info. c ontinued §Adjoining Sheets Diagram §Legend §Declination Diagram §Contour Interval

M a p C o l o r s §Black : Manmade Features §Blue : Water Features §Green : Vegetation §Brown : Elevation & Relief §Red : Main Roads & Special Features

Grid Coordinates §Used to locate specific points §Numbered : Vertical & Horizontal Grid Lines § Read RIGHT then UP §Location is where lines intersect

Coordinates §4 digits = 1000 Meters §6 digits = 100 Meters §8 digits = 10 Meters

Measuring Distances §Measure On Map §Convert to Ground Distance using the BAR SCALE §Statute Miles, Meters, or Nautical Miles

Elevation & Relief

Terrain Features §1. Hill Top §2. Valley §3. Finger §4. Saddle §5. Depression §6. Draw §7. Spur §8. Cliff §9. Cut §10. Fill

Three NORTHS §TRUE North (North Star) §MAGNETIC North (Compass) §GRID North (Map)

PROTRACTOR

Map Direction §Expressed as an Angular Direction §Measured from a North Base Line §Called an AZIMUTH

Back Azimuth §Opposite Direction §Shoot Azimuth §Add or Subtract 180 degrees §Can’t be more than 360 or less than zero

Other Applications §INTERSECTION §RESECTION §USING A COMPASS

QUESTIONS???