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

    GRACE Hydrological Monitoring of Australia: Current Limitations and Future Prospects

    135129_135129.pdf (1.010Mb)
    Access Status
    Open access
    Authors
    Awange, Joseph
    Sharifi, M.
    Baur, O.
    Keller, W.
    Featherstone, Will
    Kuhn, Michael
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Awange, Joseph and Sharifi, M and Baur, O and Keller, Wolfgang and Featherstone, Will and Kuhn, Michael. 2009. GRACE Hydrological Monitoring of Australia: Current Limitations and Future Prospects. Journal of Spatial Science. 54 (1): pp. 23-35.
    Source Title
    Journal of Spatial Science
    ISSN
    14498596
    Faculty
    Department of Spatial Sciences
    Faculty of Science and Engineering
    WA School of Mines
    URI
    http://hdl.handle.net/20.500.11937/10326
    Collection
    • Curtin Research Publications
    Abstract

    The Gravity Recovery and Climate Experiment (GRACE) twin-satellite gravimetry mission has been monitoring time-varying changes of the Earth's gravitational field on a near-global scale since 2002. One of the environmentally important signals to be detected is temporal variations induced by changes in the distribution of terrestrial water storage (i.e., hydrology).Since water is one of Australia's precious resources, it is logical to monitor its distribution, and GRACE offers one such opportunity. The second and fourth releases (referred to as RL02and RL04) of the 'standard' monthly GRACE solutions with respect to their annual mean are analysed. When compared to rainfall data over the same time period, GRACE is shown to detect hydrological signals over Australia, with the RL04 data showing better results. However, the relatively small hydrological signal typical for much of Australia is obscured by deficiencies in the standard GRACE data processing and filtering methods. Spectral leakage of oceanic mass changes also still contaminates the small hydrological signals typical over land. It is therefore recommended that Australia-focussed reprocessing of GRACE data is needed for useful hydrological signals to be extracted. Naturally,this will have to be verified by independent 'insitu' external sources such as rainfall, soil moisture and groundwater bore hole piezometer data over Australia.

    Related items

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

    • On the suitability of the 4° × 4° GRACE mascon solutions for remote sensing Australian hydrology
      Awange, Joseph; Fleming, Kevin; Kuhn, Michael; Featherstone, Will; Heck, B.; Anjasmara, Ira (2010)
      Hydrological monitoring is essential for meaningful water-management policies and actions, especially where water resources are scarce and/or dwindling, as is the case in Australia. In this paper, we investigate the ...
    • Independent patterns of water mass anomalies over Australia from satellite data and models.
      Forootan, E.; Awange, Joseph; Kusche, J.; Heck, B.; Eicker A. (2012)
      The Gravity Recovery and Climate Experiment (GRACE) products allow the quantification of total water storage (TWS) changes at global to regional scales. However, the quantity measured by GRACE represents mass signals ...
    • Spatio-temporal analysis of GRACE gravity field variations using the principal component analysis
      Anjasmara, Ira Mutiara (2008)
      Gravity Recovery and Climate Experiment (GRACE) mission has amplified the knowledge of both static and time-variable part of the Earth’s gravity field. Currently, GRACE maps the Earth’s gravity field with a near-global ...
    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.