Survey Size: Survey Size: 80,000 line miles Line Spacing: Line Spacing: 1 x 5 mile grid over ⅔ of survey area. 3 x 10 mile and 6 x 20 mile coverage in some of the deeper water areas. Survey Dates: 1984 Data Provided: Pdf Maps (scales 1:192,000 and 1:500,000) hard copy available on request: Bathymetry, […]
Data for the four individual blocks have been integrated using a grid-based differential continuation onto a sloping plane (1500′ above sea level SE to 3700′ above sea level NW) to produce a single grid over the entire survey area. This gridded data set with maps is available as an optional deliverable. Survey Size: 27,889 line […]
Survey Size: 45,500 miles Flight Lines: East-West, ½-mile 1-mile, and 2,250 feet spacing Tie Lines: North-South, 5-mile spacing Elevation: 4,700 feet barometric, draped over higher elevations Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma sensitivity Date Flown: December, 1985, to April, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI […]
Mileage: North block: (not available) Central block: 3,514 line miles South block: 2,340 line miles Survey Size: 11,218 miles Flight Lines: NNE-SSW, ¼-mile spacing Tie Lines: WNW-ESE, 5-mile spacing Elevation: 500 feet above ground level Instrumentation: Optically pumped, Cesium-vapor magnetometer, ¼-second sampling Date Flown: February, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map […]
Survey Size: 35,843 miles Flight Lines: East-West, ½-mile spacing, except, 2-mile spacing in western part of Webb, northeastern part of Duval, and northern part of Jim Wells Counties Tie Lines: a) North-South, 1½-mile spacing in western portion including all or portions of Webb, Zapata, Starr, Jim Hogg, and Duvall Counties b) North-South, 5-mile spacing in […]
