Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Coastal gravity field refinement by combining airborne and ground-based data

    81773.pdf (2.292Mb)
    Access Status
    Open access
    Authors
    Wu, Y.
    Abulaitijiang, A.
    Featherstone, Will
    McCubbine, J.C.
    Andersen, O.B.
    Date
    2019
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wu, 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.
    Source Title
    Journal of Geodesy
    DOI
    10.1007/s00190-019-01320-3
    ISSN
    0949-7714
    Faculty
    Faculty of Science and Engineering
    School
    School of Earth and Planetary Sciences (EPS)
    Remarks

    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.

    URI
    http://hdl.handle.net/20.500.11937/81730
    Collection
    • Curtin Research Publications
    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.

    Related items

    Showing items related by title, author, creator and subject.

    • A new degree-2190 (10 km resolution) gravity field model for Antarctica developed from GRACE, GOCE and Bedmap2 data
      Hirt, Christian; Rexer, M.; Scheinert, M.; Pail, R.; Claessens, Sten; Holmes, S. (2015)
      The current high-degree global geopotential models EGM2008 and EIGEN-6C4 resolve gravity field structures to ~10 km spatial scales over most parts of the of Earth’s surface. However, a notable exception is continental ...
    • The New Zealand gravimetric quasigeoid model 2017 that incorporates nationwide airborne gravimetry
      McCubbine, J.; Amos, M.; Tontini, F.; Smith, E.; Winefied, R.; Stagpoole, V.; Featherstone, Will (2017)
      A one arc-minute resolution gravimetric quasigeoid model has been computed for New Zealand, covering the region (Formula presented.)–(Formula presented.) and (Formula presented.)–(Formula presented.). It was calculated ...
    • Satellite and airborne gravimetry: their role in geoid determination and some suggestions
      Featherstone, Will (2010)
      This paper will cover a variety of topics. First, it will briefly overview the GRACE (Gravity Recovery and Climate Experiment) and GOCE (Gravity field and steady-state Ocean Circulation Explorer) satellite mission concepts, ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.