ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º EPSG Geodesy Parameters º º version 2.1, 2nd June 1995. º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ The European Petroleum Survey Group (EPSG) has compiled and is distrubuting this set of parameters defining various geodetic and cartographic coordinate systems to encourage standardisation across the Exploration and Production segment of the oil industry. The data is included as reference data in the Geotiff data exchange specification, in Iris21 the Petroconsultants data model, and in Epicentre, the POSC data model. Parameters map directly to the POSC Epicentre model v2.0, except for data item codes which are included in the files for data management purposes. Geodetic datum parameters are embedded within the geographic coordinate system file. This has been done to ease parameter maintenance as there is a high correlation between geodetic datum names and geographic coordinate system names. The Projected Coordinate System v2.0 tabulation consists of systems associated with locally used projections. Systems utilising the popular UTM grid system have also been included. Criteria used for material in these lists include: - information must be in the public domain: "private" data is not included. - data must be in current use. - parameters are given to a precision consistent with coordinates being to a precision of one centimetre. The user assumes the entire risk as to the accuracy and the use of this data. The data may be copied and distributed subject to the following conditions: 1) All data must then be copied without modification and all pages must be included; 2) All components of this data set must be distributed together; 3) The data may not be distributed for profit by any third party; and 4) Acknowledgement to the original source must be given. INFORMATION PROVIDED IN THIS DOCUMENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. Data is distributed on MS-DOS formatted diskette in comma- separated record format. Additional copies may be obtained from Jean-Patrick Girbig at the address below at a cost of US$100 to cover media and shipping, payment to be made in favour of Petroconsultants S.A at Union Banque Suisses, 1211 Geneve 11, Switzerland (compte number 403 458 60 K). The data is to be made available on a bulletin board shortly. Shipping List ------------- This data set consists of 8 files: PROJCS.CSV Tabulation of Projected Coordinate Systems to which map grid coordinates may be referenced. GEOGCS.CSV Tabulation of Geographic Coordinate Systems to which latitude and longitude coordinates may be referenced. This table includes the equivalent geocentric coordinate systems and also the geodetic datum, reference to which allows latitude and longitude or geocentric XYZ to uniquely describe a location on the earth. VERTCS.CSV Tabulation of Vertical Coordinate Systems to which heights or depths may be referenced. This table is currently in an early form. PROJ.CSV Tabulation of transformation methods and parameters through which Projected Coordinate Systems are defined and related to Geographic Coordinate Systems. ELLIPS.CSV Tabulation of reference ellipsoids upon which geodetic datums are based. PMERID.CSV Tabulation of prime meridians upon which geodetic datums are based. UNITS.CSV Tabulation of length units used in Projected and Vertical Coordinate Systems and angle units used in Geographic Coordinate Systems. README.TXT This file. The data files (.CSV) have a heirarchical structure: ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» º VERTCS º º PROJCS º ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄĶ ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄĶ ºVertical Coordinate Systemsº ºProjected Coordinate Systemsº ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍͼ ÈÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ ³ ³ ÚÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´ ³ ³ ³ ³ ³ ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» ³ ³ º GEOGCS º ³ ³ ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄĶ ³ ³ ºGeographic Coordinate Systemsº ³ ³ ºGeocentric Coordinate Systemsº ³ ³ ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄĶ ³ ³ º Geodetic Datums º ³ ³ ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄ¿ ³ ³ ³ ³ ³ ÉÍÍÍÍÍÍÏÍÍÍÍÍ» ÉÍÍÍÍÍÍÏÍÍÍÍÍ» ÉÍÍÍÍÍÍÏÍÍÍÍÍÍÍ» ³ º PROJ º º ELLIPS º º PMERID º ³ ÇÄÄÄÄÄÄÄÄÄÄÄĶ ÇÄÄÄÄÄÄÄÄÄÄÄĶ ÇÄÄÄÄÄÄÄÄÄÄÄÄÄĶ ³ º Projection º º Ellipsoid º ºPrime Meridianº ³ º Parameters º º Parameters º º Parameters º ³ ÈÍÍÍÍÍÍÑÍÍÍÍͼ ÈÍÍÍÍÍÍÑÍÍÍÍͼ ÈÍÍÍÍÍÍÑÍÍÍÍÍÍͼ ³ ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍ» º UNITS º ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄĶ º Linear and Angular Units º ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ The parameter listings are "living documents" and will be updated by the EPSG from time to time. Any comment or suggestions for improvements should be directed to: Jean-Patrick Girbig, or Roger Lott, Manager Cartography, Head of Survey, Petroconsultants S.A., BP Exploration, PO Box 152, Uxbridge One, 24 Chemin de la Marie, Harefield Road, 1258 Perly-Geneva, Uxbridge, Switzerland. Middlesex UB8 1PD, England. Internet: lottrj@txpcap.hou.xwh.bp.com Requests for the inclusion of new data should include supporting documentation. Requests for changing existing data should include reference to both the name and code of the item. 10th June 1995.