Authors / CoAuthors
Garthwaite, M. | Fuhrmann, T. | Hu, G. | McClusky, S. | McCubbine, J. | Brown, N.
Abstract
<div>This Geoscience Australia Record summarises the collection, analysis and results of three Global Positioning System (GPS) campaign surveys conducted in 2015, 2016 and 2019 in the northern Surat Basin, Queensland, Australia. During each campaign, we collected at least seven continuous days of GPS observations at each of the 65 sites of a geodetic network established by Geoscience Australia in 2014. Our analysis of the collected GPS data reveals statistically significant downward vertical ground surface movement between 2015 and 2016, 2015 and 2019, or both, at 18 of the 65 geodetic sites. Two of the 18 sites have recorded downward vertical ground surface movement of more than 100 millimetres: SB36 near Miles (125 mm) and SB49 near Wandoan (218 mm). Further work is required to help better resolve the temporal and spatial pattern of ground surface movement in the northern Surat Basin. This could include further GPS campaign surveys, analysis of GPS data from continuously operating reference sites in south-east Queensland, and a detailed comparison of surface deformation observed with GPS and interferometric synthetic aperture radar (InSAR) data; extending on the work described in McCubbine et al. (2022).</div><div><br></div>
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document
eCat Id
146987
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Keywords
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- geodesy
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- InSAR
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- Ground surface movement
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- surat basin
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- Eromanga Basin
- theme.ANZRC Fields of Research.rdf
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- Geodesy
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- Published_External
Publication Date
2022-09-07T06:15:43
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completed
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This Record is the first of two reports that describe ground surface movement monitoring Geoscience Australia have undertaken in the GAB in recent years. Namely;1. Ground surface movement in the northern Surat Basin derived from campaign GPS measurements. (this Record), and2. InSAR processing over the Great Artesian Basin and analysis over the western Eromanga Basin and northern Surat Basin (McCubbine et al., 2022).
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asNeeded
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geoscientificInformation
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GA Record GA Record 2022/23
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<div>Summary of GPS analysis performed by Geoscience Australia</div>
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[-30.00, -9.00, 138.00, 154.00]
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