The Determination and Application of Vector Gravity Anomalies
MetadataShow full item record
The link to the CSIRO Publishing home page is: http://www.publish.csiro.au/
© 2008 CSIRO Publishing.
Conventional gravity measurements are only of the maximum magnitude of the gravity acceleration vector. This is because the gravimeter is aligned with the gravity vector and not in a self consistent reference frame. However, when a high-resolution geoid model is available, vector gravity data can be computed. The geoid model is used to compute the deflections of the gravity vector from the ellipsoidal normal, thus providing direction to the measured magnitude of gravity acceleration. This allows the components of the gravity vector to be computed from the gravity measurements. Since the geoid is mostly generated by deeper Earth structure, the components of the vector gravity anomaly enhance the information on deeper mass variations above that contained in the conventional gravity anomaly. This approach has been applied to the Australian gravity database and shows a number of linear features not clearly evident in conventional Bouguer gravity anomaly maps.
Showing items related by title, author, creator and subject.
An evaluation of FFT geoid determination techniques and their application to height determination using GPS in Australia.Zhang, Kefei (1997)A new, high resolution, high precision and accuracy gravimetric geoid of Australia has been produced using updated data, theory and computational methodologies. The fast Fourier transform technique is applied to the ...
New gravimetric-only and hybrid geoid models of Taiwan for height modernisation, cross-island datum connection and airborne LiDAR mappingHwang, C.; Hsu, H.J.; Featherstone, Will ; Cheng, C.C.; Yang, M.; Huang, W.; Wang, C.Y.; Huang, J.F.; Chen, K.H.; Huang, C.H.; Chen, H.; Su, W.Y. (2020)© 2020, Springer-Verlag GmbH Germany, part of Springer Nature. This paper combines gravity data collected from airborne, shipborne and terrestrial surveys and those derived from satellite altimetry to determine a ...
Featherstone, Will; Kirby, Jonathan (2000)Observations of gravity can be aliased by virtue of the logistics involved in collecting these data in the field. For instance, gravity measurements are often made in more accessible lowland areas where there are roads ...