ncgs: positioning nc today and for the future!...ncgs: positioning nc today and for the future!...
TRANSCRIPT
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NCGS: Positioning NC today and for the
future!
North Carolina Geodetic Survey
Establishing and Maintaining
the Official Survey Base in North Carolina
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Validation Range
State Specifications
▫ flown by each sensor to check horizontal and vertical accuracy
▫ gives the teams the capability of adjusting the sensors
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State Specifications
Collection
• The 2014 LiDAR data collection will meet 2 points per square meter standard with nominal post spacing of 0.7 meters
• All data will include multi-return and intensity values
• Data collected will support a 9.25 cm RMSEz and 18.13 cm FVA based on NDEP guidelines.
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LiDAR
Classification
Un-Classified Data
Ground/Bare Earth
Vegetation
Buildings
Roads/Impervious
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Statewide Imagery Project
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Statewide Imagery Project
Quality Control Report
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NC CORS Network
• Continuously Operating Reference Station (CORS)
– A permanent and continuously recording Global Navigation Satellite System (GNSS) receiver, antenna (with a surveyed reference position), & support equipment
– NC CORS Network
Composed of 91 CORS
2 new CORS have been installed
Bethel (NCBT)
UNCC (NC49)
1 decommissioned
Clinton (NCCL
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NC CORS Network
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GNSS Real Time Network (RTN)
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Monitoring Subsidence
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Stream Gage Surveys
USGS Stream Gage
GPS and traditional
leveling will be use to
connect stream gages to
NAVD88
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Education Outreach
Height Modernization Workshops: is a traveling workshop designed for
government agencies, professional surveyors, academic departments, school
groups, and other interested parties in North Carolina.
• Workshops are tailored to each group’s
respective needs
• PDH credit
• Height Modernization Workshops
• OPUS Projects
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Future projects
• Statewide collection of gravity data to support GRAV-D
– Airborne and terrestrial
• NC UAS test range
– UAS forum
• Web page and database upgrade
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GRAV-D
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Bodie Island Baseline
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Questions?
Mailing address: Building (shipping) address:
Gary W. Thompson, PLS NC Geodetic Survey 4298 Mail Service Center Raleigh, NC 27699-4298
Gary W. Thompson, PLS NC Geodetic Survey Bowers Building NC National Guard complex 4105 Reedy Creek Rd Raleigh, NC 27607
Gary W. Thompson, PLS
Office: 919-733-3836
Direct: 919-948-7844
Email: [email protected]