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OZTemp Well Temperature Data

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.


Dataset citation

ANZLIC unique identifier: ANZCW0703013802

Title: OZTemp Well Temperature Data


Custodian

Custodian: Geoscience Australia / OEMD

Jurisdiction: Australia


Description

Abstract:

This is an extract from the OZTemp database, an updated and improved version of the AUSTHERM05 borehole temperature database previously described by Chopra and Holgate (2005). OZTemp currently contains 5513 individual wells and 17247 temperature and/or temperature gradient data records. Only open file data has been included in this extract.

ANZLIC search words:

  • ENERGY Renewable Exploration
  • GEOSCIENCES Exploration

Spatial domain:

locality map

Geographic extent name: AUSTRALIA EXCLUDING EXTERNAL TERRITORIES - AUS - Australia - Australia

Geographic extent polygon: 112.5 -10, 153.6 -10, 153.6 -43.5, 112.5 -43.5, 112.5 -10,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:
North bounding latitude: -10 °
South bounding latitude: -43.5 °
East bounding longitude: 153.6 °
West bounding longitude: 112.5 °

Data currency

Beginning date: 2005-07-01

Ending date: 2011-06-30


Dataset status

Progress: In Progress

Maintenance and update frequency: Not Known


Access

Stored data format:
DIGITAL - comma_delimited Ascii file
Available format type:
DIGITAL - comma_delimited Ascii file

Access constraints:

No Restrictions

Free Data Download

Data quality

Lineage:

This is an extract from the OZTemp database, an updated and improved version of the AUSTHERM05 borehole temperature database previously described by Chopra and Holgate (2005). The Austherm database in turn evolved from another database called Geotherm compiled by Somerville et al (1994). The data has been collated from a large nuber of sources including, well completion reports, state survey databases, company data, published heat flow data and temperature logs recorded be Geoscience Australia. OZTemp currently contains 5513 individual wells and 17247 temperature and/or temperature gradient data records.

Positional accuracy:

Due to the range of sources of this data the positional accuracy varies greatly. Broadly speaking the older data is less accurately positioned than much of the more recent data. Some idea of the positional accuracy can be gained from the resolution of the original spatial data. Records with spatial data other than GDA94 Lat/Long were reported using a coordinate system other than geographic coordinate on the GDA94 datum.

Attribute accuracy:

While every attempt has been made to check the accuracy of the data, the providence of the data means that this is an imprecise task. Many records have been flagged as either unreliable or as duplicates (either spatial or actual) of other wells. This is indicated in the 'Krig Flag' and 'Temp Flag' attributes.

Logical Consistency:

All records have unique identifiers. Where available records have also been attributed with the well name and a corresponding Entity Number (ENO) from the Pedin Database.

Completeness:

This is a compilation of available data from many sources. Despite the range of sources there are still large tracts of the continent that do not have any data. Efforts are being made to improve the coverage and it is hoped that this dataset will be updated to reflect this.


Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

Metadata information

Metadata date: 2013-03-08


Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703013802.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703013802.xml

.

Authors:Holgate, F.L. Gerner, E.J.
SPATIAL INFORMATION FOR THE NATION