Geophysics_Gravity_Gradiometry_Individual_Surveys/Bell_BMC_Tz

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Service Description: This dataset represents the conformed Tz gravity field for the Bell BMC2010 FTG/AGG survey, gridded at 25 m resolution in NAD83 NB Stereographic projection.The dataset contains the vertical gravity component (Tz) that has been corrected for long-wavelength deficiencies inherent to FTG/AGG systems by conforming it to satellite gravity. This conformed Tz grid integrates high-frequency detail from the FTG data with the stable long-wavelength information derived from the GGMplus gravity model, providing a physically consistent representation of the regional to local gravity field. The resulting dataset enhances interpretation of both deep and shallow geological structures, including major density boundaries, intrusive centres, basin geometry, and fault networks. It is delivered as a 25 m grid in NAD83 NB Stereographic projection.This raster was created by reconstructing Tz from the measured tensor components of the Bell BMC2010 FTG survey, applying a 20 km high-pass filter to this FTG-derived Tz, applying a 20 km low-pass filter to the Bouguer anomaly from GGMplus satellite gravity, and adding the two components following the Dransfield (2010) method (https://www.earthdoc.org/content/journals/10.1111/j.1365-2478.2009.00830.x). The final conformed Tz field was then gridded at 25 m using a tensor interpolation algorithm and exported as an ER Mapper (.ers) raster.Data created Sept 2025.

Name: Geophysics_Gravity_Gradiometry_Individual_Surveys/Bell_BMC_Tz_conformed30km

Description: This dataset represents the conformed Tz gravity field for the Bell BMC2010 FTG/AGG survey, gridded at 25 m resolution in NAD83 NB Stereographic projection.The dataset contains the vertical gravity component (Tz) that has been corrected for long-wavelength deficiencies inherent to FTG/AGG systems by conforming it to satellite gravity. This conformed Tz grid integrates high-frequency detail from the FTG data with the stable long-wavelength information derived from the GGMplus gravity model, providing a physically consistent representation of the regional to local gravity field. The resulting dataset enhances interpretation of both deep and shallow geological structures, including major density boundaries, intrusive centres, basin geometry, and fault networks. It is delivered as a 25 m grid in NAD83 NB Stereographic projection.This raster was created by reconstructing Tz from the measured tensor components of the Bell BMC2010 FTG survey, applying a 20 km high-pass filter to this FTG-derived Tz, applying a 20 km low-pass filter to the Bouguer anomaly from GGMplus satellite gravity, and adding the two components following the Dransfield (2010) method (https://www.earthdoc.org/content/journals/10.1111/j.1365-2478.2009.00830.x). The final conformed Tz field was then gridded at 25 m using a tensor interpolation algorithm and exported as an ER Mapper (.ers) raster.Data created Sept 2025.

Single Fused Map Cache: false

Extent:

Initial Extent:

Full Extent:

Pixel Size X: 25.0

Pixel Size Y: 25.0

Band Count: 1

Pixel Type: F32

RasterFunction Infos: {"rasterFunctionInfos": [{ "name": "None", "description": "", "help": "" }]}

Mensuration Capabilities: Basic

Has Histograms: true

Has Colormap: false

Has Multi Dimensions : false

Rendering Rule:

Min Scale: 0

Max Scale: 0

Copyright Text: NB Dept of Natural Resources, GSB Section

Service Data Type: esriImageServiceDataTypeGeneric

Min Values: -49.439254760742

Max Values: 1.5585594177246

Mean Values: -29.531051748689

Standard Deviation Values: 8.9614854485

Object ID Field:

Fields: None

Default Mosaic Method: Center

Allowed Mosaic Methods:

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Mosaic Operator: First

Default Compression Quality: 75

Default Resampling Method: Bilinear

Max Record Count: null

Max Image Height: 4100

Max Image Width: 15000

Max Download Image Count: null

Max Mosaic Image Count: null

Allow Raster Function: true

Allow Compute TiePoints: false

Supports Statistics: false

Supports Advanced Queries: false

Use StandardizedQueries: true

Raster Type Infos:

Has Raster Attribute Table: false

Edit Fields Info: null

Ownership Based AccessControl For Rasters: null

Child Resources: Info Histograms Key Properties Legend MultiDimensionalInfo rasterFunctionInfos

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_Tz_conformed30km (ImageServer)