Network corrected real-time is a technological approach to high precision GPS/ GNSS positioning that has been theorized about, studied, experimented with, and implemented in various academic, scientific, and commercial forms for nearly a decade. Many of the various approaches share the fruits of past research, algorithms, and technological tools; some which are in common.
Click Here to begin the series,
or view the Article PDF's Here
Test Yourself
Got Answers?
Test your knowledge with NCEES-level questions. Start HERE
Meet the Authors
Check out our fine lineup of writers. Each an expert in his or her field.
Seth Pease (1764-1819), Part 2:
From Massachusetts to Ohio and New York State, the little-known legacy of this Connecticut-born surveyor comes to light. By Silvio A. Bedini 1,553kb
Seth Pease: (1764-1819) Astronomer Surveyor of the Public Lands, Part 1.
Many details of the life of Seth Pease have been lost to history, but his contributions to the early surveys of Ohio’s Western Reserve live on. By Silvio A. Bedini 1319kb
The Heliotrope
Designed to reflect the sun toward a given point at a great distance, several variations of this unique instrument were employed in 19th and 20th century surveys. By Silvio A. Bedini
Compass & Chain: John Johnson (1771-1842)
Surveyor, Millwright, Builder, Architect and Civil Engineer. This versatile and prominent surveyor also designed or built many fine homes, buildings and bridges in Vermont and the surrounding area. By Silvio A. Bedini
Compass & Chain:
The Saxton Surveyors Who Drowned
An attempt to trace the origin of the tiny Vermont village of Saxtons River leads to conclusions that may forever remain buried in time. By Silvio A. Bedini
Joseph Kellogg of Deerfield (1691-1756)
Indian captive, interpreter and guide, explorer and soldier—a master historian brings to light the amazing life of this nearlyforgotten Connecticut son. By Silvio A. Bedini
• 15th Annual GeoTech - October 7-8, 2008, NOAA’s Auditorium and Science Center in Silver Spring, MD. Hosted by Potomac Region of the American Society of Photogrammetry and Remote Sensing and co-hosted by the NGS, 1 day of Workshops taught by experts, and 1 day of Technical sessions.,
• Geography in Las Vegas - March 22–27, 2009. Join 8,000 geographers, GIS specialists, and environmental scientists from around the world in Las Vegas for the very latest in research, policy, and applications in geography, sustainability, and GIScience, during the annual conference of the Association of American Geographers.
• California Land Surveyors Association 2009 Conference - March 28-April 1, 2009, Hilton San Diego Resort (Mission Bay).
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
, (707) 578-6016.
• SPAR 2009 - March 30- April 1, 2009, Hyatt Regency Hotel, Denver, Colorado. SPAR 2009 will focus on best practices for using 3D imaging technologies to design and deliver capital projects as well as operate, modify and maintain production, manufacturing and infrastructure assets.
Reach our audience of Professional land surveyors and Geo-Technology professionals with your career ad. Feel free to contact us if you need additional information.
History 
1,553kb 
