MAP READING PRELIM ROTC 2 Flashcards
Graphic representation, drawn to scale, of a portion of earth’s surface as seen from above
Maps
Marginal Information
*sheet name:
BARAS
sheet number:
sheet 7272 II
series name:
Philippines
Scale
Philippines 1:50,000
according to ________ is expressed as a fraction and gives the ratio of map distance to the ground distance
scale
types of scale?
small scale
medium scale
large scale
Scale and Distances
*The map scale is 1:50,000
*RF = 1/50,000
*The map distance from point A to B is 5 units
*5 X 50,000 = 250,000 units of ground distance
types of maps
- Planimetric Map
- Topographic map
- Photo map
- Joint operations graphics
- Photomosaic map
types of maps 2
- Terrain model
- Military city map
- Plastic relief map
- special maps
categories of maps
military use
- general map
- strategic map
- strategic Tactical map
- Tactical map
* Artillery map
*situation map
Directions
Methods of Expressing Directions
*Degree ( 1 degree = 60 min)
*Mil (Artillery, tank, and mortar gunnery)
Back Azimuth
Azimuth less than 180 degrees - plus 180 degrees
Azimuth more than 180 degrees - minus 180 degrees
reading map way?
read right and up
6 digits
nearest 100 meters
8 digits
nearest 10 meters
A map can give accurate information
Importance of map
by necessity, planning must be done on map
importance of map
To avoid lost and keep alive
importance of map
Directions
base lines
- True North
- Magnetic North
- Grid North
Grid Coordinates
Locating points within a Grid Squares
4 digits
1,000 meters
6 digits
100 meters
8 digits
10 meters
10 digits
1 meter
TOPOGRAPHIC COLORS
man made objects
black
bodies of water
blue
relief & elevation
brown
vegetation
green
roads, built up areas and special features
red
cultural features, all relief features and elevation
reddish brown
Military colors:
All friendly forces, installlations, activities, and firepower
Blue
Military colors:
all enemy forces, installation, activities (double lines means enemy)
Red
