p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd  


Authors / CoAuthors

Geophysical Acquisition & Processing Section

Abstract

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd is a first vertical derivative of the Bouguer anomaly grid for the 2007 PACE Northern Olympic Domain Gravity Survey, SA (P200750) survey. This gravity survey was acquired under the project No. 200750 for the geological survey of SA. The grid has a cell size of 0.00185 degrees (approximately 192m). A total of 38881 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

Product Type

dataset

eCat Id

143992

Contact for the resource

  Point of contact

Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Keywords

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES
( Data centre )
  • NCI
( Discipline )
  • Earth sciences
( Discipline )
  • geophysics
( Feature type )
  • grid
( Place )
  • Australia
( Place )
  • SA
( Project )
  • survey 200750
( Theme )
  • GADDS2.0
( Theme )
  • gravity
( Theme )
  • Bouguer
( Theme )
  • infinite slab
( Theme )
  • 1VD
( Theme )
  • first vertical derivative
( Theme )
  • ground digital data
( Theme )
  • geophysical survey
( Theme )
  • grav
( Theme )
  • grid
( Theme )
  • raster
  • Published_External

Publication Date

2020-03-09T00:00:00

Creation Date

2020-03-09T00:00:00

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 3.0 International Licence    

Access - license

Use - license

Status

completed

Purpose

Maintenance Information

notPlanned

Topic Category

geoscientificInformation

Series Information

Lineage

This p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd is a first vertical derivative grid of the Bouguer anomaly for the 2007 PACE Northern Olympic Domain Gravity Survey, SA (P200750) survey. This gravity survey was acquired under the project No. 200750 for the geological survey of SA. The grid has a cell size of 0.00185 degrees (approximately 192m). A first vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the Bouguer gravity grid of the 2007 PACE Northern Olympic Domain Gravity Survey, SA (P200750) survey to produce this grid. This grid was calculated using an algorithm from the INTREPID Geophysics software package. The processed data are checked by GA geophysicists using standard methods for assessing quality to ensure that the final data are fit-for-purpose. The first vertical derivative grid is very helpful for the enhancement of near surface features and structural features such as faults and dykes. Details of the specifications of individual surveys held in the Australian National Gravity Database (ANGD) can be found in the Second Edition of the Index of Gravity Surveys (Wynne and Bacchin, 2009). References: Intrepid Geophysics, http://www.intrepid-geophysics.com; Wynne, P., and Bacchin, M., 2009. Index of Gravity Surveys (Second Edition). Geoscience Australia, Record 2009/07.

Parent Information

Geophysical Data Collection - gravity

UUID - c6b58f54-102c-19e9-e044-00144fdd4fa6,

eCat ID - 74512

Extents

[-30.8658, -27.0511, 134.52, 138.2256]

Reference System

GDA94 (EPSG:4283)

Spatial Resolution

Service Information

Associations

Association Type - operatedOnBy

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd NCSS    

Association Type - operatedOnBy

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd OPeNDAP    

Association Type - operatedOnBy

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd WMS    

Association Type - operatedOnBy

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd WCS    

Downloads and Links

File available for download in various formats from the GADDS2 portal  

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd file download  

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd NCSS  

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd OPeNDAP  

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd WMS  

p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd WCS  

Source Information

This p200750 PACE Northern Olympic Domain Gravity slab Bouguer 1vd includes ground gravity point data for the 2007 PACE Northern Olympic Domain Gravity Survey, SA (P200750) survey acquired for the geological survey of SA