Research Online: GPS UTC anomaly, spatial reference system access
April 26, 2017
Impact of January 2016 GPS UTC Anomaly By Charles Curry / Presented at ION ITM, January 2017 On […]
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Impact of January 2016 GPS UTC Anomaly By Charles Curry / Presented at ION ITM, January 2017 On […]
![[FIGURE 1] New Datums: Approximate Orthometric Height Change](https://stage.gpsworld.com/wp-content/uploads/2016/12/Fig1-datum-NGS-ortho-height-change-250x188.jpg)
Understanding the differences between the North American Vertical Datum of 1988 and the new 2022 Vertical Reference Datum […]
At Caltrans District 7 in Los Angeles, we use the onboard GPS capability of smartphones to navigate in real time to the locations of proposed aerial targets and National Geodetic Survey (NGS) control stations.
The world of sharing positional information is filled with scenarios like “I got a cm and you got a cm, but our centimeters differ by a meter.” If our modern positioning systems are so capable, then virtually all positional data integration should be a snap. Unfortunately, that is often just not so. The failure in many cases is a lack of knowledge on the part of many GNSS users of basic principles of geodesy and geodetic surveying guidelines and providing complete metadata.
As the Gulf Coast begins another hurricane season, researchers with the Conrad Blucher Institute for Surveying and Science […]
On October 1, 2013, the U.S. federal government shut down and furloughed 800,000 non-essential workers. While services considered […]
NOAA’s National Geodetic Survey (NGS) is conducting a 12-year project, called Gravity for the Redefinition of the American […]
By Theresa Diehl The National Geodetic Survey (NGS) has issued a “Kinematic GPS Challenge” to the community in […]
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