NGS Products & Services NGS Geodetic Tool Kit NGS homepage NOAA homepage
on-line interactive computation of geodetic values


See the text version of an article about the NGS Geodetic Toolkit that appeared in the Professional Surveyor magazine, May 2003 Volume 23, Number 4

( See all the Professional Surveyor Articles about the NGS Geodetic Toolkit )

To learn more about a particular online program, click on its link for a description:

DEFLEC99
DYNAMIC_HT
G99SSS
GEOID99
GEOID03
USGG2003
HTDP
IGLD85
Inverse/Forward/Invers3D/Forwrd3D
LVL_DH
Magnetic Declination
NADCON
NAVD 88 Modelled Gravity
OPUS
State Plane Coordinates
Surface Gravity Prediction
Tidal and Orthometric Elevations 
U.S. National Grid
Universal Transverse Mercator Coordinates
VERTCON
XYZ Coordinate Conversion

OR... Know what you want to do?
Select a function from this list:

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

www.ngs.noaa.gov/TOOLS/  updated: April 2, 2002