Authors / CoAuthors
Nakamura, A. | Buckerfield, S. | Wynne, P.
Abstract
Geoscience Australia conducted an absolute gravity survey during April and May 2015 in order to maintain and update the Australian Fundamental Gravity Network (AFGN). During the 2015 AFGN field campaign 35 absolute gravity readings were taken with an A10 gravity meter out of which 29 were new additions to the network. Six of the readings were taken over older AFGN stations in order to update and validate existing values. The re-measures found the previous gravity values agreed with the new A10 measurements within their stated uncertainties. Two ties were made with the CG5 gravity meter from a newly established station in order to resolve discrepancies with existing gravity values. 30 pre-existing stations were checked for their condition during this survey and 5 stations were found to be destroyed. GPS readings were taken at existing stations and their locations updated in the database as many of the old stations had poorly defined locations.
Product Type
document
eCat Id
90074
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Digital Object Identifier
Keywords
-
- Report
- ( Theme )
-
- gravity
- ( Theme )
-
- Geophysics
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
- Gravimetrics
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- Published_External
Publication Date
2016-12-21T14:00:00
Creation Date
2016-01-01T00:00:00
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
notPlanned
Topic Category
geoscientificInformation
Series Information
Record 2016/033
Lineage
The data was collected in the field, processed at GA and the gravity values for each site is available at http://www.ga.gov.au/afgn/
Parent Information
Extents
[-44, -9, 112, 154]
Reference System
GDA94 (EPSG:4283)
Spatial Resolution
Service Information
Associations
Source Information
Original data acquired and processed by Geoscience Australia.