3 - Coordinate systems Flashcards
1
Q
xy reading also known as
A
geographic location
2
Q
Longitude / meridians
A
The angle subtended from the centre of the earth E/W of Greenwich (Prime meridian, 0degrees)
3
Q
Range of longitudinal values
A
180E - 180W
4
Q
Latitude/ parallels
A
The angle subtended from the centre of the earth north (N) and south (S) from the equator (0degrees)
5
Q
Range of latitude values
A
90N - 90S
(North pole to South pole)
6
Q
Graticule
A
A planar grid system of intersecting latitude and longitude lines
7
Q
NE
A
+ long
+ lat
8
Q
SE
A
+ long
- lat
9
Q
SW
A
- long
- lat
10
Q
NW
A
- long
+ lat
11
Q
Lat south of equator
A
NEGATIVE
12
Q
Long west of Greenwich
A
NEGATIVE
13
Q
On maps / analog coordinates
A
DMS
14
Q
GPS coordinates
A
DDM
15
Q
GIS coordinates
A
DD
