Geophysics_Gravity_Gradiometry_Individual_Surveys/Bell_BMC

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Service Description: This dataset represents the processed and tensor-interpolated FTG/AGG gravity tensor component grid for the Bell BMC2010 survey in New Brunswick, gridded at 25-meter resolution in NAD83 NB Stereographic projection.The dataset provides one of the gravity tensor component grids derived from the Bell BMC2010 FTG/AGG survey. The dataset was generated by processing raw gravity gradiometry profile data with a density of 2.8 g/cc, building a tensor from all components, and interpolating it into a regular grid. Individual tensor components were extracted, and from the relevant components, gravity acceleration (Tz) was reconstituted. A Shape Index was calculated from the tensor data to enhance structural interpretation. The dataset supports high-resolution geophysical analysis, structural mapping, and mineral exploration. It is provided in NAD83 NB Stereographic double projection at 25-meter resolution.The dataset was produced from raw AGG/FTG profile data by constructing a gravity tensor using all measured components and interpolating it into a regular 25-meter grid. Individual tensor components were extracted, and the Tz gravity acceleration component was reconstituted from Txz, Tyz, and Tzz. Because AGG/FTG data do not measure long wavelengths, the Tz grid was conformed to the GGMplus satellite gravity by applying a 20 km high-pass filter to the Tz component and a 20 km low-pass filter to the satellite Bouguer field, then combining both. The tensor-derived Shape Index was also calculated to highlight local structural features. The final grids were exported in ER Mapper format.Data created Sept 2025.

Name: Geophysics_Gravity_Gradiometry_Individual_Surveys/Bell_BMC_Km

Description: This dataset represents the processed and tensor-interpolated FTG/AGG gravity tensor component grid for the Bell BMC2010 survey in New Brunswick, gridded at 25-meter resolution in NAD83 NB Stereographic projection.The dataset provides one of the gravity tensor component grids derived from the Bell BMC2010 FTG/AGG survey. The dataset was generated by processing raw gravity gradiometry profile data with a density of 2.8 g/cc, building a tensor from all components, and interpolating it into a regular grid. Individual tensor components were extracted, and from the relevant components, gravity acceleration (Tz) was reconstituted. A Shape Index was calculated from the tensor data to enhance structural interpretation. The dataset supports high-resolution geophysical analysis, structural mapping, and mineral exploration. It is provided in NAD83 NB Stereographic double projection at 25-meter resolution.The dataset was produced from raw AGG/FTG profile data by constructing a gravity tensor using all measured components and interpolating it into a regular 25-meter grid. Individual tensor components were extracted, and the Tz gravity acceleration component was reconstituted from Txz, Tyz, and Tzz. Because AGG/FTG data do not measure long wavelengths, the Tz grid was conformed to the GGMplus satellite gravity by applying a 20 km high-pass filter to the Tz component and a 20 km low-pass filter to the satellite Bouguer field, then combining both. The tensor-derived Shape Index was also calculated to highlight local structural features. The final grids were exported in ER Mapper format.Data created Sept 2025.

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Pixel Size X: 25.0

Pixel Size Y: 25.0

Band Count: 1

Pixel Type: F32

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Copyright Text: NB Dept of Natural Resources, GSB Section

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Mean Values: -4.1456887417285

Standard Deviation Values: 12299.857293132

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Supported Operations: Export Image Identify Measure Compute Histograms Compute Statistics Histograms Get Samples Compute Class Statistics Query Boundary Compute Pixel Location

Geophysics_Gravity_Gradiometry_Individual_Surveys/Bell_BMC_Km (ImageServer)