USDOV2012 Data Download

USDOV2012 Download Data Description

To use USDOV2012, an INTD executable and at least one pair (Xi/Eta) of data files must be downloaded. You need only to select those data files that cover your region, and the INTD.EXE (or INTD) program will recognize which files are present.

Program INTD.EXE interpolates deflections of the vertical from data files using user-provided coordinates.

Program XNTD.EXE extracts sub-grids from the binary data files, as well as convert back and forth between binary and ASCII, or just give statistics about a data file.

Information

• USDOV2012 readme file

Programs

Program INTD (Version 4.0, 2012 Oct 04)
• Win32 executable INTD.EXE
• Unix (Solaris) executable INTD
• C source code intd_v40.zip

FORTRAN code is depricated:

Program INTD (Version 3.6, 2010 Apr 16)
• Win32 executable INTD_v36.EXE
• FORTRAN source code intd_v36.zip

Program INTD (Version 1.8, 2010 Feb 02)
• Win32 executable INTD_v18.EXE
• FORTRAN source code intd_v18.zip

Program XNTD (Version 1.4, 2009 Sep 01)
• Win32 executable XNTD.EXE
• Unix (Solaris) executable XNTD
• FORTRAN source code xntd_v14.zip

Data Downloads

• Conterminous United States
• Alaska
• Hawaii
• Guam and Northern Mariana Islands
• Puerto Rico and U.S. Virgin Islands
• American Samoa

Disclaimer

For more information contact NGS Information Services: by email,
or call (301) 713-3242, Monday-Friday, 7:00 AM - 4:30 PM eastern time.

For questions about this page or downloading problems, contact the Webmaster.