Show simple item record

dc.contributor.authorWu, Y.
dc.contributor.authorAbulaitijiang, A.
dc.contributor.authorFeatherstone, Will
dc.contributor.authorMcCubbine, J.C.
dc.contributor.authorAndersen, O.B.
dc.date.accessioned2020-11-15T12:03:12Z
dc.date.available2020-11-15T12:03:12Z
dc.date.issued2019
dc.identifier.citationWu, Y. and Abulaitijiang, A. and Featherstone, W.E. and McCubbine, J.C. and Andersen, O.B. 2019. Coastal gravity field refinement by combining airborne and ground-based data. Journal of Geodesy. 93 (12): pp. 2569-2584.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/81730
dc.identifier.doi10.1007/s00190-019-01320-3
dc.description.abstract

© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

Gravity field modelling in coastal region faces challenges due to the degradation of the quality of altimeter data and poor coverage of gravimetric measurements. Airborne gravimetry can provide seamless measurements both onshore and offshore with uniform accuracies, which may alleviate the coastal zone problem. We study the role of airborne data for gravity field recovery in a coastal region and the possibility to validate coastal gravity field model against recent altimetry data (CryoSat-2, Jason-1, and SARAL/Altika). Moreover, we combine airborne and ground-based gravity data for regional refinement and quantify and validate the contribution introduced by airborne data. Numerical experiments in the Gippsland Basin over the south-eastern coast of Australia show that the effects introduced by airborne gravity data appear as small-scale patterns on the centimetre scale in terms of quasi-geoid heights. Numerical results demonstrate that the combination of airborne data improves the coastal gravity field, and the recent altimetry data can be potentially used to validate the high-frequency signals introduced by airborne data. The validation against recent altimetry data demonstrates that the combination of airborne measurements improves the coastal quasi-geoid, by ~ 5 mm, compared with a model computed from terrestrial and altimetry-derived gravity anomalies alone. These results show that the recently released altimetry data with relatively denser spatial resolutions and higher accuracies than older altimeter data may be beneficial for gravity field model assessment in coastal areas.

dc.languageEnglish
dc.publisherSPRINGER
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectTechnology
dc.subjectGeochemistry & Geophysics
dc.subjectRemote Sensing
dc.subjectCoastal gravity field modelling
dc.subjectAirborne gravimetry
dc.subjectJason-1
dc.subjectCryoSat-2
dc.subjectSARAL/Altika data
dc.subjectMEAN DYNAMIC TOPOGRAPHY
dc.subjectGRAVIMETRIC QUASIGEOID MODEL
dc.subjectSATELLITE ALTIMETRY
dc.subjectPOISSON WAVELETS
dc.subjectCRYOSAT-2
dc.subjectREGULARIZATION
dc.subjectIMPROVE
dc.subjectREGIONS
dc.subjectENVISAT
dc.subjectSURFACE
dc.titleCoastal gravity field refinement by combining airborne and ground-based data
dc.typeJournal Article
dcterms.source.volume93
dcterms.source.number12
dcterms.source.startPage2569
dcterms.source.endPage2584
dcterms.source.issn0949-7714
dcterms.source.titleJournal of Geodesy
dc.date.updated2020-11-15T12:02:56Z
curtin.note

This is a post-peer-review, pre-copyedit version of an article published in Journal of Geodesy. The final authenticated version is available online at: http://doi.org/10.1007/s00190-019-01320-3.

curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidFeatherstone, Will [0000-0001-9644-4535]
curtin.contributor.researcheridFeatherstone, Will [B-7955-2010]
dcterms.source.eissn1432-1394
curtin.contributor.scopusauthoridFeatherstone, Will [7005963784]


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record