OS Map Key Skills (Leaving Cert Geography): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
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Practise the cards
15 cards from this deck
Map legend
Map legend
A key that explains symbols & colours on a map
1:50,000 scale - 2 cm on map equals what on ground?
1:50,000 scale - 2 cm on map equals what on ground?
1 kilometre
LEN method for grid references stands for
LEN method for grid references stands for
Letter, Easting, Northing
Four-figure grid reference locates
Four-figure grid reference locates
A 1 km square
Six-figure grid reference precision
Six-figure grid reference precision
Within 100 metres
Contour lines connect points of
Contour lines connect points of
Equal height above sea level
Closely spaced contours indicate
Closely spaced contours indicate
Steep slopes
Index contours drawn at intervals of
Index contours drawn at intervals of
50 metres
Dark green on OS map shows land height
Dark green on OS map shows land height
0-100 metres above sea level
Triangulation station symbol on OS map
Triangulation station symbol on OS map
Black triangle
Concave slope contour spacing pattern
Concave slope contour spacing pattern
Widely spaced below, closer together above
Convex slope contour spacing pattern
Convex slope contour spacing pattern
Close together below, widely spaced above
Vertical exaggeration formula
Vertical exaggeration formula
Horizontal scale ÷ Vertical scale
Average gradient formula
Average gradient formula
Vertical Interval ÷ Horizontal Equivalent
Sketch map orientation rule
Sketch map orientation rule
North points towards top of page