Etheridge Airborne Gravity Gradiometry Survey, 2024

The Etheridge Airborne Gravity Gradiometer (AGG) survey of Northern Queensland was flown between April 8th to 1st June 2024. Contracted to Xcalibur Smart Mapping, Geoscience Australia undertook the project management, contract management and quality control on behalf of the Geological Survey of Queensland. The located data, gridded data and quality control reports are contained within this record.


Survey area was centered on longitude 143° 31’ E and latitude 18° 27’ S to the east of Croydon. A total of 53 production flights were flown for a combined total of 32,482.0 line kilometres of data and acquired on 1000 m line spacing at 100 m nominal terrain clearance. Quality control was performed by airborne gravity consultant Dr Mark Dransfield on behalf of Geoscience Australia, with his report included here.


The survey was designed to supplement the regional legacy ground gravity data and improve the definition of gravimetric anomalies in the region. In addition, the AGG survey will provide better understanding of the cover sequence thickness and characteristics of the underlying basement geology.


The data will also be released by the Geological Survey of Queensland and can be found at:

https://geoscience.data.qld.gov.au/data/gravity-gradiometry/gg104290.


Survey Name: Etheridge airborne gravity gradiometery survey, 2024

Datasets Acquired: Gravity gradiometry, gravity, digital terrain model

Geoscience Australia Project Number: P5025

Acquisition Start Date: 08/04/2024

Acquisition End Date: 01/06/2024

Flight line spacing: 1000 m

Flight line direction: East-West (090-270)

Total distance flown: 32,482.0 line km

Nominal terrain clearance: 100 m

Blocks: 1

Data Acquisition: Xcalibur Smart Mapping

Project Management: Geoscience Australia

Quality Control: Mark Dransfield on behalf of Geoscience Australia

Dataset Ownership: Geological Survey of Queensland and Geoscience Australia


Included in this release:

1. Point-located Data

ASCII-column data in ASEG-GDF format with accompanying description and definition files.

• Gravity gradiometry data including the various corrections

• Gravity gradiometry data noise estimates

• Vertical gravity estimate including various reduction and levelled corrections

• Digital terrain model


2. Grids

Gridded data in ERMapper (.ers) format (GDA2020/MGA zone 54):

• Free-air vertical gravity gradiometry

• Free-air corrected vertical gravity

• Terrain and bouguer corrected vertical gravity gradiometry (densities for terrain correction: 2.3g/cm3 and 2.67 g/cm3)

• Terrain and bouguer corrected vertical gravity (densities for terrain correction: 2.3g/cm3 and 2.67 g/cm3)

• Conformed, terrain and bouguer corrected vertical gravity gradiometry (densities for terrain correction: 2.3g/cm3 and 2.67 g/cm3)

• Conformed, terrain and bouguer vertical gravity (densities for terrain correction: 2.3g/cm3 and 2.67 g/cm3)

• Digital terrain model


3. Reports

• Contractors Logistics Report

• Quality Control Report (Mark Dransfield)

Simple

Identification info

Date (Creation)
2024-08-18T04:00:00
Date (Publication)
2024-08-19T22:10:46
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149790

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.26186/149790

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

 Voice
Purpose

The airborne gravity gradiometry (AGG) survey data will provide a new generation dataset to supplement the regional legacy ground gravity data and improve the definition of gravimetric anomalies in the region. In addition, the AGG survey will provide better understanding of the cover sequence thickness and characteristics of the underlying basement geology.

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Resource provider

Minerals, Energy and Groundwater Division

 External Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Miller, R.

 Internal Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
2024-04-08 2024-06-01
Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • Airborne Gravity Gradiometry

Keywords

  • Digital Terrain Model

Keywords

  • Airborne Gravity

Keywords

  • Etheridge

Keywords

  • P5025

theme.ANZRC Fields of Research.rdf

  • Earth Sciences

  • Gravimetrics

Keywords

  • Published_External

Resource constraints

Addressee
Role Organisation / Individual Name Details
User

Any
Use constraints
License
Use constraints
Other restrictions
Other constraints

(c) Commonwealth of Australia (Geoscience Australia) 2024

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Classification system

Australian Government Security Classification System

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice facsimile
OnLine resource

Download Data (zip) [2.7 GB]

Download Data (zip) [2.7 GB]

Distribution format

  • ers pdf dat des dfn prj txt

    File decompression technique

    unzip

Resource lineage

Statement

<div>The P5025 Etheridge survey was acquired by Xcalibur Smart Mapping in 2024 for the Geological Survey of Queensland in collaboration with Geoscience Australia as part of the Queensland Resources Industry Development Plan, with quality control provided by Geoscience Australia. Please refer to the Logistics and Processing Report for details on how the data were acquired.</div>

Reference System Information

Reference system identifier
EPSG/WGS 84 / geographic 2D (EPSG: 4326)

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/45b7cb5d-38a1-4133-a8c1-997dc8387c6a

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Miller, R.

 Internal Contact

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/149790

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/45b7cb5d-38a1-4133-a8c1-997dc8387c6a

Date info (Creation)
2024-08-19T02:32:03
Date info (Revision)
2024-08-19T02:32:03

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
http://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

theme.ANZRC Fields of Research.rdf
Earth Sciences Gravimetrics

Provided by

Access to the portal

Associated resources

Not available