Technology

Version 6.0, is a MS-Windows-based program which allows the user to convert coordinates between Geographic, State Plane, and the Universal Transverse Mercator (UTM) systems on the North American Datum of 1927 (NAD 27), the North American Datum of 1983 (NAD 83) and High Accuracy Reference Networks (HARNs). Corpscon uses the National Geodetic Survey (NGS) program NADCON to convert between NAD 27, NAD 83 and HARNs. Corpscon performs vertical conversions to and from the National Geodetic Vertical Datum of 1929 (NGVD 29) and the North American Vertical Datum of 1988 (NAVD 88). Vertical conversions are based on the NGS program VERTCON and can be performed for the continental U.S. only. Corpscon, Version 6.0, will also calculate geoid-ellipsoid separations based on the NGS program GeoidXX (XX = 90, 93, 96, 99, and 03). Geoid-ellipsoid separations can be calculated for the Continental U.S., Alaska, Hawaii and Puerto Rico/U.S. Virgin Islands.

Problem

Geospatial data gathered from different sources or historical archives, may have been collected in different coordinate systems or datums. In order to combine these types of data, they must be transformed or converted into a common coordinate system and/or datum. CORPSCON provides consistent conversions between various coordinate systems and datums within the Continental U.S., Alaska, Hawaii and Puerto Rico/U.S. Virgin Islands.

Status

Version 6.0 is the current release of CORPSCON and is available via the Internet. The current version computes an erroneous value for Combined Scale Factor. Version 5.0 may be used for that computation.

System Requirements

CORPSCON has a Microsoft Windows (MS-Windows)-based Graphical User Interface that allows the user to specify the type of conversion desired and allows data entry by key-in or batch file. The program requires a PC with a 80386 (or higher) processor and about 20 megabytes of hard disk space. MS-Windows95/98/NT/2000/XP is also required. Vista users should be logged on as an administrator.

Distribution Sources

The program is available via the Internet from http://www.agc.army.mil/Missions/Corpscon.aspx

Available Documentation

Documentation is distributed with software.

Available Training

CORPSCON is used in PROSPECT Survey I, II, III, IV, and GPS for GIS classes.

Available SupportDue to restricted resources, very limited assistance is available to non-Corps of Engineers users.

Due to restricted resources, very limited assistance is available to non-Corps of Engineers users.

AGC POC

U.S. Army Corps of Engineers, Army Geospatial Center, ATTN: CEAGC-GSA, 7701 Telegraph Road, Alexandria, VA 22315-3864; e-mail: corpscon@usace.army.mil