|
|
| GeoCommunity Mailing List |
| |
| Mailing List Archives |
| Subject: | RE: GISList: Coordinate System 1992 of Poland |
| Date: |
06/17/2003 01:15:00 PM |
| From: |
Robert Heitzman |
|
|
Try a google.com search for "Uklad 1965 1992"
One like link (extract below):
http://gpsinformation.net/main/warsaw.txt
**** System(s) 1992 ****
Topographical maps in scales 1:10000 - 1:50000 sometimes use the
Polish National System 1992/19 (based on the European Standard ETRF-89).
These maps are made by "The National Geodetic and Cartographic Service"
("Panstwowa Sluzba Geodezyjna i Kartograficzna") and copyrighted by
the "Glowny Geodeta Kraju". They explicitly state the system used as
"Panstwowy uklad wspolrzednych geodezyjnych 1992".
The Reference Ellipsoid is :
GRS 1980
The grid is (Polish National System 1992/19) :
Transverse Mercator (Gauss-Krueger type) in 10 degrees wide zone
Latitude of Origin: 0.0 North
Longitude of Origin: 19.0 East
Scale Factor at the Central Meridian: 0.9993
Units to meters conversion: 1.0 (GPS set to metric system !!!)
False Easting at Origin: +500000.0m
False Northing at Origin: -5300000.0m (can also be +4700000.0m)
The map datum is :
delta A: 0.0
delta F (x10000): -0.00000016
delta X: 0.0
delta Y: 0.0
delta Z: 0.0
Note here that (magic numbers define reference ellipsoids, see above) :
delta A = 6378137 - 6378137
delta F (x10000) = ( 1/298.257223563 - 1/298.257222101 ) * 10000
The False Northing at Origin should be set to -5300000.0m, but some GPS
receivers are not able to accept negative values for this parameter. If
one sets +4700000.0m, one gets this coordinate shifted by 10000000.0m,
which is not a problem to "manually subtract in mind" (if one has it, of
course). Topicality of these maps is usually 1992 - 1994, but they don't
cover as much area of Poland as "military" based maps mentioned below.
The vertical map datum (heights above the sea level) is based on the
Kronsztadt '86 standard.
In order to get informations (and maybe also buy these maps) you can
contact the "Centralny Osrodek Dokumentacji Geodezyjnej i Kartograficznej"
ul. Zurawia 3/5, 00-926 Warsaw, Poland <codgik@codgik.waw.pl>.
One needs to say here that there are also maps that use Polish Systems
1992/15, 1992/18, 1992/21, 1992/24 (zones are 3 degrees wide), but
they are only used on maps with scales 1:1000 - 1:10000. I haven't
found any good informations about these systems. To my best knowledge,
they are very similar to the System 1992/19 described above and the
scale factor may possibly be equal to 0.999935.
_________________________________________________________________
MSN 8 with e-mail virus protection service: 2 months FREE*
http://join.msn.com/?page=features/virus
To unsubscribe, write to gislist-unsubscribe@geocomm.com
________________________________________________________________________
GeoCommunity GeoBids - less than $1 per day!
Get Access to the latest GIS & Geospatial Industry RFPs and bids
http://www.geobids.com
Online Archive of GISList (and numerous others) available at:
http://spatialnews.geocomm.com/community/lists/
Setup a GeoCommunity Account and have access to
the GISDataDepot DRG & DOQQ Catalog
http://www.geocomm.com/login.php
|
|
Sponsored by:
For information
regarding
advertising rates
Click Here!
|
