This is a group layer consisting of the following datasets:

Airborne Surveys - Spatial index (polygons) of airborne geophysical surveys for which digital data is held, with summary attributes including survey name, operator, contractor, processor, acquisition dates, platform and sensor. Many surveys have associated digital elevation data from radar altimetry. Includes magnetic, radiometric, electromagnetic and LiDAR survey data.

Gravity Base Stations - Sites that may be precisely reoccupied (to within a few millimetres) by a gravity meter, for the purpose of tying gravity surveys to an absolute gravity datum.

Gravity Measurements - Measurement locations including height above sea level, observed gravity and calculated complete Bouguer anomaly values including terrain correction from gravity surveys conducted in Tasmania.

This is a group layer consisting of the following datasets:

Airborne Surveys - Spatial index (polygons) of airborne geophysical surveys for which digital data is held, with summary attributes including survey name, operator, contractor, processor, acquisition dates, platform and sensor. Many surveys have associated digital elevation data from radar altimetry. Includes magnetic, radiometric, electromagnetic and LiDAR survey data.

Gravity Base Stations - Sites that may be precisely reoccupied (to within a few millimetres) by a gravity meter, for the purpose of tying gravity surveys to an absolute gravity datum.

Gravity Measurements - Measurement locations including height above sea level, observed gravity and calculated complete Bouguer anomaly values including terrain correction from gravity surveys conducted in Tasmania.