NPRA Survey

Survey Size:

5,000 square miles; approximately 4,000 stations acquired by helicopter with inertial surveying; approximately 10,000 stations (public data)

 

Data Spacing:

5,900 foot grid

 

Terrain Corrections:

Through Hayford-Bowie Zone J

 

Data Provided:

• Magnetic tape and computer printout containing all principal survey facts including: station number, date surveyed, latitude, longitude, UTM X-coordinate, UTM Y-coordinate, elevation, terrain correction, station gravity, free-air gravity, and Bouguer gravity calculated for three densities.
• Both the helicopter-acquired data and the publicly available data have been terrain corrected and integrated
• Report describing data acquisition and reduction
• Bouguer Gravity Map at a scale of 1" = 8,000'; station location map. Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity network

 

Total Cost

Please contact for quote

 

Click here to download product specification sheet (PDF)

CLICK IMAGE FOR INTERACTIVE MAP