Gravity anomaly grids for the conterminous US

Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. These digital grids describe the isostatic residual and Bouguer anomaly for the conterminous US.

View

Show in a web browser window:

Show in Google Earth or other KML viewer:

Gravity_Anomaly.kmz (compressed (includes both Bouguer and isostatic anomaly) 1k bytes)

Show in your GIS using OGC web services:

https://mrdata.usgs.gov/services/gravity (WMS, version 1.3.0)

https://mrdata.usgs.gov/services/wfs/gravity (WFS, version 1.1.0)

Download

More data of this type: a source of gravity station measurement (point) data collected in many different studies

Data packages:

Name Anomaly Format Size
isostatic_sdd.e00.gz Isostatic ArcInfo interchange GRID 3.5 MB
USgrv_iso_SDD_geog.tif Isostatic GeoTiff (Geographic, NAD83) 3.0 MB
bouguer_sdd.e00.gz Bouguer ArcInfo interchange GRID 3.4 MB
USgrv_cba_SDD_geog.tif Bouguer GeoTiff (Geographic, NAD83) 11.4 MB
US_bouguer.zip Bouguer Geosoft grid 1 MB

Documentation

Metadata:

Anomaly HTML FAQ TXT XML
Bouguer Outline Questions & Answers Plain text XML
Isostatic Outline Questions & Answers Plain text XML