Australian gravity base-station network: 1980 survey

Owner: Mike Bobak
Created on Oct 11, 2020

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Description:

In 1980, a gravity base-station network of 67 airports throughout Australia was surveyed with seven LaCoste and Romberg gravity meters, and tied to sites of six 1979 absolute gravity measurements. Two computer adjustments of the gravity meter observations were made, firstly with two and secondly with six absolute measurements to control scale and datum. Comparison of the adjustments shows that the absolute measurements are consistent with one another to within experimental error. The gravity values calculated in the computer adjustment using the weighted results of the six absolute sites have been adopted as the best values for the Australian National Base-station Network (lsogal 84 values). The values have a precision of 0.1 m.s-2, and an accuracy of about 0.3 m.s-2. A polynomial is derived for revising earlier gravity values to be consistent with the new base-station values. http://datadiscoverystudio.org/geoportal/rest/metadata/item/69c9fa7357854200bee976e2ba460930/html

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Name	Value	Last Modified
@context	@context: @vocab: http://schema.org/ datacite: http://purl.org/spar/datacite/ dcat: http://www.w3.org/ns/dcat# earthcollab: https://library.ucar.edu/earthcollab/schema# geolink: http://schema.geolink.org/1.0/base/main# vivo: http://vivoweb.org/ontology/core# @id: urn:81186 @type: Dataset additionalType: geolink:Dataset vivo:Dataset citation: Wellman, P., McConnell, K., Williams, J.W. (1984-01-01T00:00:00), Australian gravity base-station network: 1980 survey, Bureau of Mineral Resources, Geology and Geophysics, urn:81186. creator: @type: Role creator: @type: Person additionalType: geolink:Person name: Wellman, P. roleName: author @type: Role creator: @type: Person additionalType: geolink:Person name: McConnell, K. roleName: author @type: Role creator: @type: Person additionalType: geolink:Person name: Williams, J.W. roleName: author datePublished: 1984-01-01T00:00:00 description: In 1980, a gravity base-station network of 67 airports throughout Australia was surveyed with seven LaCoste and Romberg gravity meters, and tied to sites of six 1979 absolute gravity measurements. Two computer adjustments of the gravity meter observations were made, firstly with two and secondly with six absolute measurements to control scale and datum. Comparison of the adjustments shows that the absolute measurements are consistent with one another to within experimental error. The gravity values calculated in the computer adjustment using the weighted results of the six absolute sites have been adopted as the best values for the Australian National Base-station Network (lsogal 84 values). The values have a precision of 0.1 m.s-2, and an accuracy of about 0.3 m.s-2. A polynomial is derived for revising earlier gravity values to be consistent with the new base-station values. distribution: @id: https://d28rz98at9flks.cloudfront.net/81186/Jou1984_v9_n3_p225.pdf @type: DataDownload additionalType: dcat:distribution dcat:accessURL: https://d28rz98at9flks.cloudfront.net/81186/Jou1984_v9_n3_p225.pdf description: Journal article (pdf). Service Protocol: Journal article (pdf). Link Function: download fileFormat: pdf v.Unknown pdf v.Unknown name: File download provider: @type: Role provider: @type: Organization email: sales@ga.gov.au name: Commonwealth of Australia (Geoscience Australia) roleName: distributor url: https://d28rz98at9flks.cloudfront.net/81186/Jou1984_v9_n3_p225.pdf @id: urn:file//nas/cds/open/journals/Jou1984_v9_n3_p225/Jou1984_v9_n3_p225.pdf @type: DataDownload additionalType: dcat:distribution dcat:accessURL: description: Service Protocol: . fileFormat: pdf v.Unknown pdf v.Unknown provider: @type: Role provider: @type: Organization email: sales@ga.gov.au name: Commonwealth of Australia (Geoscience Australia) roleName: distributor url: @id: urn:filenolongerexists @type: DataDownload additionalType: dcat:distribution dcat:accessURL: description: Download the journal article (pdf). fileFormat: pdf v.Unknown pdf v.Unknown provider: @type: Role provider: @type: Organization email: sales@ga.gov.au name: Commonwealth of Australia (Geoscience Australia) roleName: distributor url: identifier: @type: PropertyValue propertyID: dataset identifier value: urn:81186 @type: PropertyValue propertyID: dataset identifier value: urn:Product @type: PropertyValue propertyID: dataset identifier url: http://www.ga.gov.au/metadata-gateway/metadata/record/81186/ value: urn:http//www.ga.gov.au/metadata-gateway/metadata/record/81186/ includedInDataCatalog: @type: DataCatalog name: Name of catalog source for record being transformed url: not defined keywords: GA Publication Journal Earth Sciences Published_External Survey Measurement Observation Comparison Geoscience Australia Measurement Scale Weight Earth Science license: @type: DigitalDocument description: accessConstraints: license. name: MD_LegalConstraints @type: DigitalDocument description: useConstraints: license. otherConstraints: Creative Commons Attribution 4.0 International Licence. name: MD_LegalConstraints @type: DigitalDocument description: classification: name: MD_SecurityConstraints name: Australian gravity base-station network: 1980 survey publisher: : @type: Organization name: Bureau of Mineral Resources, Geology and Geophysics @type: Role roleName: publisher	Extracted by http://clowder.ncsa.illinois.edu/extractors/deprecatedapi on Oct 11, 2020

Extracted by http://clowder.ncsa.illinois.edu/extractors/deprecatedapi on Oct 11, 2020

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datePublished: 1984-01-01T00:00:00
description: In 1980, a gravity base-station network of 67 airports throughout Australia was surveyed with seven LaCoste and Romberg gravity meters, and tied to sites of six 1979 absolute gravity measurements. Two computer adjustments of the gravity meter observations were made, firstly with two and secondly with six absolute measurements to control scale and datum. Comparison of the adjustments shows that the absolute measurements are consistent with one another to within experimental error. The gravity values calculated in the computer adjustment using the weighted results of the six absolute sites have been adopted as the best values for the Australian National Base-station Network (lsogal 84 values). The values have a precision of 0.1 m.s-2, and an accuracy of about 0.3 m.s-2. A polynomial is derived for revising earlier gravity values to be consistent with the new base-station values.
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