NGS Improves Online Access to its Data and Tools 

Explore our newly available Web services, which include: 

• NGS Coordinate Conversion and Transformation Tool
• NGS Data Explorer
• Hybrid Geoid Height Service
• Gravity Predictor Using GRAV-D (airborne gravity) Data

Learn More about NGS Online Tools 

• The NGS Coordinate Conversion and Transformation Tool allows users to easily convert coordinate values among different coordinate systems and to transform coordinates among different geodetic datums in a single step. 
• The NGS Data Explorer is an interactive map to search for and find information on geodetic control.
• Hybrid Geoids convert heights from North American Datum of 1983 (NAD 83) to regional vertical datums (e.g., NAVD 88).
• GRAV-D data products may include airborne and terrestrial survey information, gravity data, and gravity-based geoids or datums. 

Give Us Your Feedback    

Send your suggestions for improving these new online tools, or for improving any of our products and services, to ngs.feedback@noaa.gov

NOAA's National Geodetic Survey 

geodesy.noaa.gov