Worked Examples (Leaving Cert DCG): Flashcards
📚Flashcards
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Practise the cards
10 cards from this deck
Key to precise spacing in grid construction
Key to precise spacing in grid construction
Perpendicular measurements
Common working scale for grids & contours
Common working scale for grids & contours
1:200
Contour interpolation definition
Contour interpolation definition
Finding intermediate values between known elevation points
Technique for determining contour crossing points
Technique for determining contour crossing points
Proportional division
Purpose of profile construction
Purpose of profile construction
Transform 2D contours into vertical cross-sections
First step in profile construction
First step in profile construction
Establish the profile line
Vertical interval for contour lines
Vertical interval for contour lines
1-metre intervals
Outcrop definition
Outcrop definition
Where geological formation reaches the surface
Strata definition
Strata definition
Rock layers
What maintains grid scale accuracy
What maintains grid scale accuracy
Consistent perpendicular measurements