Gravity
By measuring Earth’s gravity field, we are able to map variations in the mass distribution of Earth’s crust. These variations are due to differences in the composition of the bedrock.
SGU's Gravity data products is primarily used in bedrock mapping. The data can also be used for locating major aquifers. Other areas where gravity data is useful are in conjunction with exploration for ores, in various geodetic applications, for navigation and positioning purposes, deployment of strain gauges, and for calibrating precision balances.
Gravity measurements
The gravity data is based on gravity measurements available in the SGU database. The measurements have been carried out by SGU, Swedish National Land Survey and several other organisations and companies.
Download the product as a pre-packaged zip file
The link will download the data in GeoPackage format. The contents of the delivery are shown in the product description.
Landing page for OGC API – Features
The link provides documentation in HTML or JSON format for direct access to vector data via OGC API - Features. Main data download format is GeoJSON.
Gravity measurements as Web Map Service
Gravity measurements is also available as a Web Map Service (WMS). The Web Map Services are aimed at those of you who want to use our information in your own systems or applications. The services are set up in WMS (Web Map Service) format.
https://resource.sgu.se/service/wms/130/markgeofysik-tyngdkraft
Product description for Gravity measurements Web Map Service (In Swedish)
Geophysical ground measurements, gravity interpolated (overview)
The data product Geophysical ground measurements, gravity interpolated (overview) contains grid data that illustrates the variations in Sweden's gravity field, expressed as Bouguer anomalies. From point-by-point measurements of gravity throughout Sweden, Bouguer anomalies (mGal) have been calculated in the reference field RG82. These have then been gridded with a cell size of 500m x 500m and from this, contour lines have been generated with 1 mGal equidistance. From the grid, coordinate Bouguer anomalies have been extracted with the same point distance corresponding to the grid's cell size to a csv file.
Download the product as a pre-packaged zip file
The link will download the data in GeoPackage and TIFF format. The contents of the delivery are shown in the product description.
Landing page for OGC API – Features
The link provides documentation in HTML or JSON format for direct access to vector data via OGC API - Features. Main data download format is GeoJSON.
Capabilities document for OGC Web Coverage Service (WCS)
The link provides documentation in XML format of direct access to raster data via OGC WCS. The main format for downloading data is TIFF.
Last reviewed 2025-01-27