Publications related to the GRACE Missions (no abstracts)

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Assessing Groundwater Storage Change in the Great Artesian Basin Using GRACE and Groundwater Budgets

Castellazzi, P., Ransley, T., McPherson, A., Slatter, E., Frost, A., Shokri, A., Wallace, L., Crosbie, R., Janardhanan, S., Kilgour, P., Raiber, M., Vizy, J., and Rollet, N., 2024. Assessing Groundwater Storage Change in the Great Artesian Basin Using GRACE and Groundwater Budgets. Water Resources Research, 60(11):2024WR037334, doi:10.1029/2024WR037334.

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@ARTICLE{2024WRR....6037334C,
       author = {{Castellazzi}, P. and {Ransley}, T. and {McPherson}, A. and {Slatter}, E. and {Frost}, A. and {Shokri}, A. and {Wallace}, L. and {Crosbie}, R. and {Janardhanan}, S. and {Kilgour}, P. and {Raiber}, M. and {Vizy}, J. and {Rollet}, N.},
        title = "{Assessing Groundwater Storage Change in the Great Artesian Basin Using GRACE and Groundwater Budgets}",
      journal = {Water Resources Research},
     keywords = {confined aquifer, time-variable gravity, groundwater management, Australia},
         year = 2024,
        month = nov,
       volume = {60},
       number = {11},
        pages = {2024WR037334},
     abstract = "{Large, confined aquifer systems play a vital role in sustaining human
        settlements and industries in many regions. Understanding the
        sustainability of these water resources requires the evaluation
        of groundwater storage change. Direct in-situ observation of
        groundwater storage is limited by the distribution and
        availability of groundwater level and aquifer storativity data.
        Here, we use and compare two auxiliary methods, applied at basin
        and sub-basin scales, to assess groundwater storage changes in
        the Great Artesian Basin (GAB), one of the World's largest
        confined aquifer systems. The first, the groundwater budget,
        derives storage change as the residual of fluxes in and out of
        the GAB, assuming they are all accounted for and accurately
        estimated. The second uses time-variable gravity data from GRACE
        satellites to estimate temporal changes in groundwater mass,
        assuming that all other components of the terrestrial water mass
        change detected by GRACE are correctly subtracted. Despite the
        depletion observed during the 20th century, groundwater storage
        is mostly stable during 2002{\textendash}2022. An increase in
        storage is detected in the Surat sub-basin, a major recharge
        area. This increase is attributed to an over-representation of
        large recharge events during the study period and/or storage
        recovery following rehabilitation of free-flowing bores. The
        approach consisting in disaggregating GRACE data assumes that
        water storage changes in confined aquifers is dominated by
        changes in the GAB, and as such, it may overestimate the
        increase in the GAB by incorrectly attributing the increase
        occurring in overlying aquifers to the GAB. In contrast, the
        recharge estimates used in the groundwater budgets do not
        account for flood recharge and might underestimate storage
        increase in the GAB.}",
          doi = {10.1029/2024WR037334},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2024WRR....6037334C},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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