The Alabama Cooperative Extension System
 
 Thursday, February 9, 2012
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Alabama Precision Agriculture Extension

Continuously Operating Reference Station (CORS)

A CORS is a static, survey-grade GPS receiver which is permanently positioned at a known geographic location and collects data 24 hours a day, seven days a week. Coordinated by the National Geodetic Survey (NGS) of the National Oceanic and Atmospheric Administration (NOAA), CORS sites provide Global Navigation Satellite System (GNSS) measurements in support of 3-dimensional positioning activities. CORS data can be used for Real-Time Kinematic (RTK) applications, meaning that the station provides continuous correction data to roving GPS receivers with internet accessible capabilities. The benefit of a CORS site or network is the ability to provide accurate, repeatable position data free of charge permitting users to return to the exact same locations over time. Data collected from CORS sites has a wide array of uses. For example, CORS data can be used for monitoring coastal subsidence, surveying, determining the amount of precipitable water vapor in the atmosphere, recording and locating utility lines, and machine guidance for construction and precision agriculture. Users include local, state, and federal government, transportation, construction, emergency management, homeland security, surveyors, education, natural resource, and agriculture.

Alabama CORS Map click here

Florida PRN Map click here (Click "Site Overview" to view map)

Trimble CenterPoint VRS Coverage click here

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Nutrient Removal App

In 2011, Mosiac released a new App called “Nutrient Removal” for both the iOS and Android.  This application provides  nutrient removal rates for a wide variety of crops and in some cases by crop yield. ... more

RTK: Single Baseline versus Real-time Network Solutions

RTK technology continues to be a hot item here in the US among those purchasing or upgrading precision ag technologies.  However, the options for RTK correction varies widely within and between states.  Here in Alabama,... more

2012 Summer Internships

The Alabama Precision Ag Team is looking for 1 or 2 energetic young people to fill open 2012 summer internships.  The internship would include supporting research and extension efforts in the area of precision agriculture. ... more

 

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