News and Notes

With the help of satellite technology and using an ellipsoid model of the Earth, NAD83 accounted for latitude, longitude, and ellipsoid height - a significant advancement of accuracy compared to NAD 27, the horizontal datum that preceded NAD83. Since its adoption, NAD83 has been the most commonly used horizontal datum for surveying and mapping in the United States.

For both emerging GIS (Geographic Information Systems or Science) professionals eager to capitalize on their education and seasoned geospatial experts aiming for career advancement, increased income, and community contribution, the GISP (Certified GIS Professional) certification from GISCI (GIS Certification Institute) may be the right path for you to reach your career goals.

If you’re a geospatial professional that relies on accurate positioning for GIS spatial analysis, mapping, or informed decision making, then you probably use an RTK (real-time kinematic) correction service.