State Geodetic Advisor

NGS Liaison to Arizona 1616 West Adams Street Phoenix, Arizona 85007 Office: 602-542-1569 Fax: 602-542-2600 Cellular: 602-549-4744

Information on HEIGHT MODERNIZATION in Arizona.

The NGS State Geodetic Advisor Program is a cost-sharing program that provides a liaison between NOAA and the host state. The role of the state advisor is to guide and assist the state's geodetic and surveying programs. For more information, visit the NGS Geodetic Advisors home page.

About Geodetic Control Geodetic control survey points support the production of consistent and spatial accurate data for surveying and mapping. Permanent geodetic monuments provide a consistent coordinate system and serve as the basis for computing lengths and distances between relative positions. Read more ...

About the Public Land Survey System The Public Land Survey System (PLSS) is a legal land reference system set up to facilitate disposition of the federal domain into private ownership. Most land transactions in the thirty states that use the PLSS are described using the township, range, and section method of describing property. Read more ...

National Differential GPS (NDGPS) coverage plots
NDGPS stations allows real-time positioning with 1-2 meter accuracy requiring only an inexpensive beacon receiver. Arizona currently does not have NDGPS coverage. Please find the activation schedule and coverage plots for NDGPS stations serving Arizona. The most recent information can be found at the U.S. Coast Guard Navigation Center.

Fenner, CA station coverage plot 1 April, 2000 activation Flagstaff station coverage plot 1 June, 2000 activation

Kirtland, NM station coverage plot 1 June, 2000 activation Combined Arizona and New Mexico coverage plot

Arizona FBN/CBN Locations

The National Geodetic Survey (NGS) recently updated the Federal Base Network (FBN) and many stations were added to the Co-Observer Network (CBN) throughout Arizona. The data can be downloaded at the NGS web site.

Unpublished positions (epoch 1999) for FBN/HARN Stations

National Geodetic Survey web site
The NGS web site offers a wealth of information regarding geodetic control, including downloadable control data in SDTS format. NGS also provides information involving air transportation and navigational charts.

For information or assistance on GPS issues and geodetic control contact:

NGS Liaison to Arizona 1616 West Adams Street Phoenix, Arizona 85007

Office: 602-542-1569 Fax: 602-542-2600 Cellular: 602-549-4744