Survey Size: 14,800 miles Flight Lines: N45-E, 3,700-foot spacing Tie Lines: N45-W, 5-mile spacing Elevation: 7,000 feet barometric Instrumentation: Cesium Vapor magnetometer Date Flown: April to June, 1998 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on paper (optional)
Survey Size: 16,600 miles Flight Lines: East-West, ½-mile spacing Tie Lines: North-South, 5-mile spacing Elevation: 6,700 feet barometric Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma Date Flown: 1985, to January, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on
Survey Size: 15,800 miles Flight Lines: North-South, 4,000 feet spacing Tie Lines: East-West, 5 miles spacing Elevation: 8,000 feet barometric Instrumentation: Cesium vapor magnetometer Date Flown: July-October 1995 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on paper (optional)
Survey Size: 1,589 Helicopter Stations Data Spacing: 3,500ft Helicopter Data Provided: CD/DVD 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 Gravity data are tied to the Worldwide Defense Mapping Agency base station gravity
Survey Size: 903 Helicopter Stations 235 Road Stations Data Spacing: 5,280ft Helicopter ¼ mi Road Data Provided: CD/DVD 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 Gravity data are tied to the Worldwide
