|
|
|
COPYRIGHT © JOHN B. JOHNSTON 2001 JUL 13 |
|
RETURN TO HOMEPAGE
|
|
|
Comparison Between
12Z2 
(metric
grid
reference
method)
and
M
ilitary
G
rid
R
eferencing
S
ystem (MGRS)
for
( Unnormalized UTM zone 13 )
12Z2 zone 12
In this display, the UTM, MGRS, and 12Z2 grids are all based on the NAD83 datum.
The town of Anthony TX-NM is entirely contained within the ONE
SQUARE shown below in this color (
CR
in MGRS and
35
in 12Z2).
The town of Anthony TX lies on the south side of the 32-degree latitude line and has UTM/MGRS-REGION designator
R
.
The town of Anthony NM lies on the north side of the 32-degree latitude line and has UTM/MGRS-REGION designator
S
.
Repeated experiments confirm that pairs of points in Anthony TX-NM lying only two decimeters apart across the 32-degree latitude
line have GPS-measured positions which are numerically identical and differ ONLY in their UTM/MGRS-REGION designators (
R
or
S
).
In the 12Z2 grid, all points within any single 12Z2 SQUARE have identical DOMAIN designators,
as is evident below (e.g.,
16N
).
|
|
NORTH POLE |
|
Approximate locations of BOUNDARIES of UTM REGIONS are indicated by rows highlighted in green. |
|
UTM/MGRS REGIONS |
UTM/MGRS REGION
13X |
UTM/MGRS REGION
13W |
UTM/MGRS REGION
13V |
UTM/MGRS REGION
13U |
UTM/MGRS REGION
13T |
UTM/MGRS REGION
13S |
UTM/MGRS REGION
13R |
UTM/MGRS REGION
13Q |
UTM/MGRS REGION
13P |
UTM/MGRS REGION
13N |
|
|
UTM/MGRS REGION
13M |
UTM/MGRS REGION
13L |
UTM/MGRS REGION
13K |
UTM/MGRS REGION
13J |
UTM/MGRS REGION
13H |
UTM/MGRS REGION
13G |
UTM/MGRS REGION
13F |
UTM/MGRS REGION
13E |
UTM/MGRS REGION
13D |
UTM/MGRS REGION
13C |
|
UTM/MGRS REGIONS |
|
|
MGRS SQUARES |
UTM northings |
12Z2 SQUARES |
12Z2 DOMAINS |
|
.
AV
. |
.
BV
. |
.
CV
. |
.
DV
. |
.
EV
. |
.
FV
. |
.
GV
. |
.
HV
. |
|
.
AU
. |
.
BU
. |
.
CU
. |
.
DU
. |
.
EU
. |
.
FU
. |
.
GU
. |
.
HU
. |
|
.
AT
. |
.
BT
. |
.
CT
. |
.
DT
. |
.
ET
. |
.
FT
. |
.
GT
. |
.
HT
. |
|
.
AS
. |
.
BS
. |
.
CS
. |
.
DS
. |
.
ES
. |
.
FS
. |
.
GS
. |
.
HS
. |
|
.
AR
. |
.
BR
. |
.
CR
. |
.
DR
. |
.
ER
. |
.
FR
. |
.
GR
. |
.
HR
. |
|
.
AQ
. |
.
BQ
. |
.
CQ
. |
.
DQ
. |
.
EQ
. |
.
FQ
. |
.
GQ
. |
.
HQ
. |
|
.
AP
. |
.
BP
. |
.
CP
. |
.
DP
. |
.
EP
. |
.
FP
. |
.
GP
. |
.
HP
. |
|
.
AN
. |
.
BN
. |
.
CN
. |
.
DN
. |
.
EN
. |
.
FN
. |
.
GN
. |
.
HN
. |
|
.
AM
. |
.
BM
. |
.
CM
. |
.
| | | | |