Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
Dooley, J.C., McCarthy, E., Keating, W.D., Williams, L.W. & Maddern, C.A., 1961. Pendulum measurements of gravity in Australia, 1950-51. Bulletin  046. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

During 1950-51 pendulum gravity observations were made at 59 stations throughout Australia using invar pendulums on loan from the Department of Geodesy at Cambridge University. A national gravity base station was established at Melbourne. Subsequent comparisons with gravity meter ties suggest that the pendulum value is about 2 mgal. low. The standard errors of the gravity differences from Melbourne to the other stations have been estimated from internal consistency of the pendulum observations and from comparison with gravity meter measurements; the mean standard error is about 0.6 mgal. A small systematic difference from gravity meter values is assumed to be caused by the effect of the earth's magnetic field on the pendulums; after correction for this, the results agree fairly well with the American calibration system. Free air, Bouguer and isostatic anomalies have been calculated for all stations. The isostatic anomalies are for both Airy-Heiskanen and Pratt-Hayford hypotheses, and for four different assumed crustal thicknesses in each case. The isostatic and Bouguer anomalies are predominantly negative. A degree of isostatic compensation is present, but some large anomalous areas are uncompensated. The pendulum survey forms a basic network to which past and future gravity surveys can be referred.
Google map showing geographic bounding box with values North bound -10.0 East bound 155.0 West bound 112.0 South bound -44.0
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dataset - GA Publication - Bulletin

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license
Creative Commons Attribution 3.0 Australia Licence

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Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1961

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dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Bulletin
gravity
Earth Sciences

Resource Language

English

Resource Character Set

utf8

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unclassified

Geographic Extent

North bound
-10.0
East bound
155.0
West bound
112.0
South bound
-44.0

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Unknown

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onLine

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pdf

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Organisation Name
Geoscience Australia
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Canberra
Administrative Area
ACT
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Country
Australia
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Metadata File Identifier

a05f7892-7ff7-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

1996-10-29

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unclassified

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Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
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Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
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1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).