Geography Reference
In-Depth Information
Second meridan strip (scale factor 0.999578).
x
2
(UTM) = 265
,
448
.
926 m
,y
2
(UTM) = 5
,
678
,
805
.
917 m
.
Easting: 765,448.926m, Northing: 5,678,805.917m, zone 31.
The point 1 is located 265
,
448
.
926 m East of the
ref-
erence meridian
of the zone 31, that is
L
0
=3
◦
and
5
,
678
,
805
.
917 m
North of the equator
.
End of Example.
The summary concerning the Gauss-Krueger coordinates is presented in Box
15.6
, the summary
concerning the UTM coordinates is presented in Box
15.7
, and a comparison is shown in Box
15.8
.
Box 15.6 (Summary: Gauss-Krueger coordinates).
(1)
Choose
{L
0
,B
0
}
such that
|l|
=
|L − L
0
| <l
max
=2
◦
,
|b|
=
|B − B
0
| <
1
◦
,
and
L
0
multiple of 3
◦
.
False Easting :
x
(
l,b
)+
L
0
10
6
+5
10
5
,
Northing :
y
0
+
y
(
l, b
)
.
3
◦
×
×
y
0
is the length of meridian from the equator to the latitude point
B
0
:
B
0
=
B
is permitted.
(2)
Choose
{L, B}
out of
{
False Easting, Northing
}.
Choose
y
0
such that
|
y
|
=
|
Northing
−
y
0
|
<
100 km and
|x|
=
|
False Easting
−
10
6
×
meridian number
−
5
×
10
5
| <l
max
×R
0
×
cos
B/ρ,
ρ
:= 180
0
/π, R
0
=6
,
380
,
000 m
.
Longitude :
L
=
L
0
+
l
(
x, y
)
,
latitude :
B
=
B
0
+
b
(
x, y
)
.
B
0
is the latitude of the meridian arc
y
0
,y
0
= Northing is admissible
,
L
0
=3
◦
×
meridian number
.
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