Ground Penetrating Radar (GPR) Data - Old Bar Beach Survey

This record contains processed and topographically corrected Ground Penetrating Radar (GPR) data (.segy, .bmps) and summary shapefile collected on fieldwork at Old Bar Beach, NSW for the Bushfire and Natural Hazards CRC Project, Resilience to Clustered Disaster Events on the Coast - Storm Surge. The data was collected from 3 - 5 March 2015 using a MALA ProEx GPR system with a 250 MHz shielded antennae. The aim of the field work was to identify and define a minimum thickness for the beach and dune systems, and where possible depth to any identifiable competent substrate (e.g. bedrock) or pre-Holocene surface which may influence the erosion potential of incident wave energy. Surface elevation data was co-acquired and used to topographically correct the GPR profiles. This dataset is published with the permission of the CEO, Geoscience Australia.

Simple

Identification info

Date (Creation)
2015-03-03T00:00:00
Date (Publication)
2016-08-17T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/100224

Cited responsible party
Role Organisation / Individual Name Details
Author

Howard, F.J.F.

 1
Co-author

McPherson, A.A.

 2
Owner

Commonwealth of Australia (Geoscience Australia) and the Bushfire and Natural Hazards CRC
Status
Point of contact
Role Organisation / Individual Name Details
Point of contact

Howard, F.J.F.

Commonwealth of Australia (Geoscience Australia)

 Voice
Spatial representation type

Spatial resolution

Level of detail

N/A

Topic category
  • Geoscientific information

Extent

Temporal extent

Time period
2015-03-03

Extent

N
S
E
W


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

Instrument

  • GPR

Theme

  • coasts

Theme

  • erosion

Discipline

  • geophysics

Discipline

  • geomorphology

Place

  • NSW

Australian and New Zealand Standard Research Classification: Fields of Research

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

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

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

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Related link: Resilience to Clustered Disaster Events on the Coast - Poster

Link to a PDF poster summarising the objectives and aims of the project that funded the GPR data collection.

Distribution format

  • pdf

OnLine resource

Related link: Resilience to Clustered Disaster Events on the Coast - Storm Surge

Link to the Bushfire and Natural Hazard CRC's page summarising the objectives and aims of the project that funded the GPR data collection.

OnLine resource

Related link: MALA Geosciences Home Page

Home page of MALA Geosciences

OnLine resource

Download the data (bmp)

Download the data (bmp)

OnLine resource

Download the data (shp)

Download the data (shp)

OnLine resource

Download the data (segy)

Download the data (segy)

Resource lineage

Statement

Data was collected between the 2-5 March 2015 using a MALA GPR system with a 250 MHz shielded antennae.


GPR survey lines and elevations were co-acquired using a NovAtel SMART6-L Global Positioning System (GPS) receiver that recorded location measurements at one per 4 seconds or better. Due to the inherent inaccuracy introduced by the backpack GPS receiver setup, and the resultant inability to maintain a consistent distance or height with respect to the antenna, differential correction of GPS measurements was not attempted. Accordingly all elevation and location coordinates are relative.


The raw data was processed and converted to SEGY format using RadExplorer(TM) software (Geomatrix Earth Science Ltd). Processing involved the following processing flow and settings.


1. DC removal: Start Time - 130; End Time - 162; Mode - Mean

2. Time zero adjustment: Manual - selected the first return

3. Background removal: Normal - The fifth weakest option

4. 2D Spatial filtering: Filter Type - 2D Mean; Number of Traces - 3; Number of Samples - 2; Filter Mode - Normal

5. Amplitude correction: AGC; Operator Length (ns) - 50; AGC Scalar - Mean; Scalar Application - Leading

6. Bandpass filtering: Low Cut - 71 MHz; Low Pass - 135 MHz; High Pass - 378 MHz; High Cut - 750 MHz

7. Topographic correction: elevation correction using the associated .cor file to account for surface topographic variation

8. Trace Edit: Where topographic correction was noisy, some individual traces were erased to smooth the profile.

Hierarchy level
Dataset

Reference System Information

Reference system identifier
EPSG/WGS 84 / World Mercator (EPSG:3395)

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)
2008-11-12T00:00:00
Cited responsible party
Role Organisation / Individual Name Details

European Petroleum Survey Group

 http://www.epsg-registry.org/

Metadata constraints

Title

Australian Government Security ClassificationSystem

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

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/64b49cf4-00a8-453c-9fdd-e02be901282f

Title

GeoNetwork UUID

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

Howard, F.J.F.

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/100224

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/64b49cf4-00a8-453c-9fdd-e02be901282f

Date info (Creation)
2016-05-09T16:57:27
Date info (Revision)
2018-04-22T08:52:25

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
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

GPR coasts erosion geomorphology geophysics
Australian and New Zealand Standard Research Classification: Fields of Research
Earth Sciences

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Associated resources

Not available