Latest Headlines

NOAA Expands International Reference Network Adding 43 GPS Stations

October 13, 2008
/ Print / Reprints /
ShareMore
/ Text Size+
NOAA’s National Geodetic Survey has recently incorporated 43 new GPS tracking sites into the CORS network, including 13 sites established by the Federal Aviation Administration as part of their WAAS. Four of the new WAAS sites are located in Alaska, four in Canada, and five in Mexico.

NOAA’s National Geodetic Survey has recently incorporated 43 new GPS tracking sites into the Continuously Operating Reference Station (CORS) network, including 13 sites established by the Federal Aviation Administration as part of their Wide Area Augmentation System (WAAS). Four of the new WAAS sites are located in Alaska, four in Canada, and five in Mexico.

WAAS provides differential GPS correctors for safe airline navigation across North America. These correctors help more precisely determine a position and enable pilots to determine the three-dimensional location of their aircraft with an accuracy of a few meters. The WAAS network now contains 38 GPS tracking sites.

"The CORS network is a critical NOAA product that helps ensure the consistency and accuracy of the nation's spatial reference system," notes John H. Dunnigan, assistant administrator of NOAA's National Ocean Service. "These additional stations are part of a continuing effort by NOAA to improve the accuracy of the spatial reference system and to be on the cutting edge of positioning technology."

The addition of the new sites significantly improves both the geographic coverage of the CORS network as well as the accuracy with which CORS users can position things, including property boundaries, transportation arteries, buildings and other map-worthy objects. The expanded coverage will also benefit those organizations that apply CORS data to monitor the distribution of water vapor in the atmosphere and the distribution of free electrons in the ionosphere. Knowing the distribution of water vapor is critical for accurately forecasting severe weather such as hurricanes, tornadoes, and thunder storms. An overabundance of free electrons in the ionosphere can disrupt those communications services that involve satellite links.

The NOAA CORS network now contains over 1,200 sites spanning the United States, its territories, and several foreign countries. Surveyors, GIS users and others can combine their own GPS data with GPS data from the CORS network to determine three-dimensional positional coordinates that approach a few centimeters in accuracy. Alternatively, users can submit their GPS data to the web-based Online Positioning User Service utility to have NOAA compute such coordinates automatically.

NOAA understands and predicts changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and conserves and manages our coastal and marine resources. Visit www.noaa.gov.

Did you enjoy this article? Click here to subscribe to POB

You must login or register in order to post a comment.

Multimedia

Videos

Image Galleries

HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

POB

POB August 2014

2014 August

In the August 2014 issue, POB explores how John McAslan + Partners used 3D modeling to facilitate the update design of King's Cross Station. Also, read how keeping workers safe on a rocky, steeply sloped mountainside requires precise, reliable monitoring.

Table Of Contents Subscribe

Surveying Career

Would you recommend surveying as a career to a current college student?
View Results Poll Archive

Point of Beginning Store

M:\General Shared\__AEC Store Katie Z\AEC Store\Images\POB\epubsite\Statues-pic-large.gif
Surveyor Statues

The perfect gift or award for any special occasion.

More Products

Clear Seas Research

Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Geo Locator

Buyers Guide

The #1 buyers' guide for land surveyors and geomatics professionals. Search listings for software and equipment manufacturers, equipment dealers and professional services. CLICK HERE to view GeoLocator.

STAY CONNECTED

Facebook logo Twitter logo  LinkedIn logo  YouTube logoRPLS small logo

Google +