finals Flashcards
is a graphical representation, drawn to scale, of a portion of the earth’s surface as shown from above.
MAP
Maps are classified according to the following scale.
Small scale
Medium scale
Large scale
MAP AT SCALE OF
1 : 600,000 AND SMALLER ARE USED FOR GENERAL PLANNING AND STRATEGIC STUDIES AT HIGHER ECHELONS.
SMALL SCALE
MAPS AT SCALE LARGER THAN 1 : 600,000 BUT SMALLER THAN 1 : 75,000 ARE USED FOR PLANNING OPERATIONS, INCLUDING THE MOVEMENT OF TROOPS AND SUPPLIES.
MEDIUM SCALE
MAPS AT SCALE OF 1 : 75,000 AND LARGER ARE USED TO MEET THE TACTICAL, TECHNICAL & ADMINISTRATIVE NEEDS OF FIELD UNITS. THE STANDARD SCALE IS 1 : 50,000
LARGE SCALE
IS FOUND IN TWO PLACES. THE CENTER OF THE UPPER MARGIN AND EITHER THE LEFT OR RIGHT SIDE OF THE LOWER MARGIN
SHEET NAME
IS FOUND IN TWO PLACES: THE UPPER RIGHT MARGIN AND THE LOWER RIGHT MARGIN.
IT IS USED AS A REFERENCE NUMBER FOR THAT MAP SHEET.
SHEET NUMBER
– IS A RULER PRINTED ON THE MAP AND IS USED TO CONVERT DISTANCES ON THE MAP TO ACTUAL GROUND DISTANCES
GRAPHIC (BAR) SCALE
– identifies hydrography or water features such as lakes, swamps & rivers
Blue
– identifies all relief features and elevation
Brown
– classifies cultural features, such as populated areas, main roads and boundaries.
Red
– Vegetation with military significance such as woods, orchards and vineyards.
GREEN
– maybe used to show special information
Others
MOST COMMON METHOD OF SHOWING RELIEF AND ELEVATION ON A STANDARD TOPOGRAPHIC MAP
represents an imaginary line on the ground, above or below sea level.
CONTOUR LINES
TYPES OF CONTOUR LINES
INDEX CONTOUR LINES
INTERMEDIATE
SUPPLEMENTARY
– HEAVIER AND NUMBERED AT SOME POINTS. THE NUMBER IS THE ELEVATION OF THAT LINE
INDEX CONTOUR LINES
– FALLS BETWEEN INDEX CONTOUR LINES. THESE LINES ARE FINER AND ELEVATION ARE NOT GIVEN.
INTERMEDIATE