Measurements of the Earth's gravitational field have been taken at these locations.
Gravity Readings differ depending upon density of rock. This can be an indication of rock types.
Search Words:
Geoscientific information
Publication Date:
23 November 2023
Dataset Status:
Complete
Completeness Verification: Metadata Custodian Review Frequency: yearly
Metadata Last Reviewed by Custodian: February 2008
Progress:
Completed
Access Constraint:
Creative Commons Attribution 4.0 (CC-BY)
(
License Text
)
The data are available free of charge from DPI's Minerals and Petroleum Online Store at www.dpi.vic.gov.au/minpet/store and from the "Geoscience Portal" at www.geoscience.gov.au through the Geophysical Archive Data Delivery System (GADDS).
The data is subject to Crown Copyright and interested parties are required to enter into a licence agreement that can be obtained from the custodian.
Subject to licence conditions
Data Existence:
Metadata Name
Descriptions
Resource Name:
GRAVITY
Title:
Gravity Reading Locations and Measurement
Anzlic ID:
ANZVI0803002240
Custodian:
Owner:
Jurisdiction:
Victoria
Abstract:
Measurements of the Earth's gravitational field have been taken at these locations.
Gravity Readings differ depending upon density of rock. This can be an indication of rock types.
Search Words:
Geoscientific information
Purpose:
Geographic Extent Polygon:
Geographic Bounding Box:
Beginning to Ending Date:
1949-01-01 - 2007-12-31
Maintainence and Update Frequency:
Irregular
Stored Data Format:
Available Format(s) Types:
ASCII
Positional Accuracy:
Highly variable, ranges from 100's m horizontal error with 10's m vertical error for early surveys where positions were taken from base maps with vertical positions from analogue barometers, to millimetre accuracy for horizontal and vertical positions using post-processed differential GPS and modern surveying methods.
Attribute Accuracy:
Good
Logical Consistency:
Good
Data Source:
Dataset Source: The dataset is compiled from data acquired by GeoScience Victoria (GSV), Geoscience Australia (GA) and private companies from 1949 to 2007. Station spacings vary from 11 km to 10 m. The position data are based on the GDA94 datum for horizontal coordinates and the AHD for vertical coordinates. The gravity data are based on the IGSN71 datum and gravity units are micrometres per second squared. Simple and complete Bouguer anomaly values have been calculated using a density of 2.67 g/cc. A NULL value of 99999 has been used for fields where terrain corrected data is not currently available.
Each gravity survey has a unique survey identifier (surveyid). Additional metadata for individual gravity surveys is available from the Index of Gravity Surveys maintained by Geoscience Australia.
Dataset Originality: Derived
Contact Organisation:
DEECA
Contact Position:
Address:
Telephone:
Facsimile:
Email Address:
Metadata Date:
2013-09-17
Additional Metadata:
History: Gravity data collected dominantly on roads/tracks etc., Elevation data associated with gravity readings collected using various technics (traditional surveying, barometers, GPS, etc.)
Related Documents: None