Government Technology

    Digital Communities
    Industry Members

  • Click sponsor logos for whitepapers, case studies, and best practices.
  • McAfee

Geodetic Survey Upgrade to Improve Mapping, Emergency and Land Planning



Infrastructure Begins With Mapping
Infrastructure Begins With Mapping

May 14, 2010 By

The National Oceanic and Atmospheric Administration's National Geodetic Survey -- the official U.S. government source for determining precise latitude, longitude and elevation -- is undergoing a modernization effort that takes into account advances in GPS and other technologies. The effort is important to all activities requiring accurate positioning information including levee construction projects, the design of evacuation routes in hurricane-prone areas and the forecast of sea-level rise in coastal communities. The modernized National Spatial Reference System will take even greater advantage of newer technologies and better track changes in position and elevation over time to improve and update digital maps.

The proposed changes will affect civilian-federal mapping authorities, as well as state and municipal governments that have adopted the National Spatial Reference System.

"The reference frame in the past was hampered by being held static in time on an Earth that is constantly changing," says Juliana Blackwell, director of NOAA's National Geodetic Survey. "The new methodologies better capture changes, such as subsidence or sea level rise, and the improved points of reference benefit everyone using positioning data for the foundation of their work."

A modernized reference system will allow users to easily calculate accurate positions using a survey-grade GPS receiver in conjunction with a scientific model of Earth's gravity field. In 2009, a NOAA commissioned, independent socio-economic study estimated the value of these modernization efforts to be $4.8 billion over the next 15 years, including $2.2 billion in avoidance costs from improved floodplain management.

"An improved vertical datum means elevation measurements will become more accurate and less expensive, helping the National Flood Insurance Program to reduce the impacts and losses caused by flooding," said Paul Rooney, a Mapping Technology Specialist at the Federal Emergency Management Agency (FEMA).

Photo: Geospatial Corp.


| More

Comments

Add Your Comment

You are solely responsible for the content of your comments. We reserve the right to remove comments that are considered profane, vulgar, obscene, factually inaccurate, off-topic, or considered a personal attack.

In Our Library

White Papers | Exclusives Reports | Webinar Archives | Best Practices and Case Studies
Digital Cities & Counties Survey: Best Practices Quick Reference Guide
This Best Practices Quick Reference Guide is a compilation of examples from the 2013 Digital Cities and Counties Surveys showcasing the innovative ways local governments are using technological tools to respond to the needs of their communities. It is our hope that by calling attention to just a few examples from cities and counties of all sizes, we will encourage further collaboration and spark additional creativity in local government service delivery.
Wireless Reporting Takes Pain (& Wait) out of Voting
In Michigan and Minnesota counties, wireless voting via the AT&T network has brought speed, efficiency and accuracy to elections - another illustration of how mobility and machine-to-machine (M2M) technology help governments to bring superior services and communication to constituents.
Why Would a City Proclaim Their Data “Open by Default?”
The City of Palo Alto, California, a 2013 Center for Digital Government Digital City Survey winner, has officially proclaimed “open” to be the default setting for all city data. Are they courageous or crazy?
View All