Geophysics_Gravity_Gradiometry_Compiled/Ground_compiled

View In: ArcGIS JavaScript ArcGIS Online Map Viewer ArcGIS Earth ArcMap

View Footprint In: ArcGIS Online Map Viewer

Service Description: This dataset represents the Free Air gravity anomaly recalculated for ground gravity stations across New Brunswick.The dataset provides Free Air anomaly values derived from reprocessed ground gravity measurements in New Brunswick. The Free Air anomaly corrects observed gravity for elevation above sea level and highlights broad regional variations in the gravity field related to large-scale crustal structure. This dataset serves as a foundational gravity product for geological interpretation and supports studies of crustal architecture, basin geometry, and regional density variations. It is provided in the NAD83 NB Stereographic double projection.The data originated from ground gravity stations downloaded from the GSC server and was reprocessed in September 2025. SRTM topography was sampled at each station location, and Free Air corrections were recalculated using the standard 0.3086 mGal per meter formula. Latitude corrections were applied, and the updated Free Air anomaly values were computed from the adjusted gravity measurements. The final values were exported in NAD83 NB Stereographic, producing the dataset.Data created Sept 2025.

Name: Geophysics_Gravity_Gradiometry_Compiled/Ground_compiled_FreeAir

Description: This dataset represents the Free Air gravity anomaly recalculated for ground gravity stations across New Brunswick.The dataset provides Free Air anomaly values derived from reprocessed ground gravity measurements in New Brunswick. The Free Air anomaly corrects observed gravity for elevation above sea level and highlights broad regional variations in the gravity field related to large-scale crustal structure. This dataset serves as a foundational gravity product for geological interpretation and supports studies of crustal architecture, basin geometry, and regional density variations. It is provided in the NAD83 NB Stereographic double projection.The data originated from ground gravity stations downloaded from the GSC server and was reprocessed in September 2025. SRTM topography was sampled at each station location, and Free Air corrections were recalculated using the standard 0.3086 mGal per meter formula. Latitude corrections were applied, and the updated Free Air anomaly values were computed from the adjusted gravity measurements. The final values were exported in NAD83 NB Stereographic, producing the dataset.Data created Sept 2025.

Single Fused Map Cache: false

Extent:

Initial Extent:

Full Extent:

Pixel Size X: 1000.0

Pixel Size Y: 1000.0

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: -91.664916992188

Max Values: 140.20176696777

Mean Values: -3.5467044873985

Standard Deviation Values: 22.352398883374

Object ID Field:

Fields: None

Default Mosaic Method: Center

Allowed Mosaic Methods:

SortField:

SortValue: null

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_Compiled/Ground_compiled_FreeAir (ImageServer)