Thu Dec 12, F.Flechtner
• Sorted by Date • Sorted by Last Name of First Author •
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.
• from the NASA Astrophysics Data System • by the DOI System •
@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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