02/05/2021
Make sure you master this information
revision:
Topographical map
1. colours of lines and functions
- brown (relief and landforms)
- blue ( water/ national road)
- black ( construction)
- grey ( construction)
- green (vegetation)
- red ( construction)
2. three types of symbol
> point symbol
> line symbols
> areA symbol
(additional information)
Points symbol-houses
Line symbol-national road
Area symbol-scotsville race course
: Point- police station, monument, reservoir, trigonometrical station, post office, buildings, school
Line- roads, rivers, canal, contour lines, railway line, powerlines,
Area- cultivated land, dam, recreational ground, built up area, woodlands
3. relief of the map
- contour line
- sport height
- Trig beacon
- bench mark
(additional information)
If I may ask... What do the two numbers on the trigonometrical beacon represent?
the station number will always be a whole number and on top, whilst the height is always below and as a decimal?
4. water
-perennial river
-non perennial river
-perennial water
-non perennial water
-marsh and vlie
-water tower
-reservoir
-waterpointhe
three ways in how to trace direction of the river?
1.Damwall- river flows in the direction of the damwall- eg above it goes to the North of the damwall
2. Tributaries- point in the direction of the flow at the confluence
Water flows from tributaries and goes to the main stream
3. Rivers flow from higher altitudes to lower altitudes... So rivers will flow from higher contour lines to lower contours
