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Titel |
Understanding hydroclimate processes in the Murray-Darling Basin for natural resources management |
VerfasserIn |
A. J. E. Gallant, A. S. Kiem, D. C. Verdon-Kidd, R. C. Stone, D. J. Karoly |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1027-5606
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Digitales Dokument |
URL |
Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 7 ; Nr. 16, no. 7 (2012-07-12), S.2049-2068 |
Datensatznummer |
250013364
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Publikation (Nr.) |
copernicus.org/hess-16-2049-2012.pdf |
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Zusammenfassung |
Isolating the causes of extreme variations or changes in the hydroclimate is
difficult due to the complexities of the driving mechanisms, but it is
crucial for effective natural resource management. In Australia's
Murray-Darling Basin (MDB), ocean-atmosphere processes causing hydroclimatic
variations occur on time scales from days to centuries, all are important,
and none are likely to act in isolation. Instead, interactions between all
hydroclimatic drivers, on multiple time scales, are likely to have caused
the variations observed in MDB instrumental records. A simplified framework
is presented to assist natural resource managers in identifying the
potential causes of hydroclimatic anomalies. The framework condenses an
event into its fundamental elements, including its spatial and temporal
signal and small-scale evolution. The climatic processes that are
potentially responsible are then examined to determine possible causes. The
framework was applied to a period of prolonged and severe dry conditions
occurring in the southern MDB from 1997–2010, providing insights into
possible causal mechanisms that are consistent with recent studies. The
framework also assists in identifying uncertainties and gaps in our
understanding that need to be addressed. |
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