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New App Makes Easy Work of Finding NGS Control

November 16, 2011
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A new app from Critigen called Find-A-Control allows surveyors, field personnel, and interested citizens to access National Geodetic Survey (NGS) survey control information through a mobile device.



A new app from Critigen called Find-A-Control allows surveyors, field personnel, and interested citizens to access National Geodetic Survey (NGS) survey control information through a mobile device. Built through a partnership with Esri, the app allows users to view NGS survey control stations in a map viewer; toggle on/off layers used to identify station quality and type (horizontal, vertical, combined, low quality and CORS network); switch between street or imagery basemaps; search by county; zoom to a current location and view station summary information with map callouts. Additionally, the app provides direct access to NGS datasheets that summarize key geodetic information. Users can also access the data directly through ArcGIS Online from their desktop.

According to Tyler Huehmer, director of Critigen Labs, the firm simply saw a need and believed it could develop a solution. “This app is one of those simple things that may have been overlooked,” he said. “The data has been available forever, and the capability has been there for awhile, but no one put them together before now. We’ve been getting really good feedback on it so far. It’s very practical, focused and easy to use.”

Brent Jones, PE, PLS, global marketing manager of Survey/Cadastre/AEC for Esri, is enthusiastic about the new app. “Surveyors spend a lot of their time looking for data and information,” he said. “This easy-to-use app gives surveyors fast access to authoritative NGS control from their iPhone, iPad or Android device in the field leveraging ArcGIS Online map services.”

The app is available for free on the Android Market and can also be downloaded directly from Critigen’s website. An iOS version is expected to be released in the Apple App Store soon.

More information about the data used in Find-A-Control can be found on the NGS website at www.ngs.noaa.gov.

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