Physics
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3122202m&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 22, CiteID L22202
Physics
5
Global Change: Climate Dynamics (3309), Hydrology: Chemistry Of Fresh Water, Hydrology: Drought, Hydrology: Groundwater Hydrology, Hydrology: Hydroclimatology
Scientific paper
A 30-month study of drip hydrochemistry from Kooringa Cave, eastern Australia, revealed a clear geochemical response to the 2002-2003 El Niño. Through the drought, drip discharge fell to base flow, drip Ca2+ concentrations fell by half and drip Mg/Ca and Sr/Ca increased in a co-varying pattern. Calcite Mg/Ca and Sr/Ca predicted from drip waters displayed a marked increase through, and just beyond, the period of greatest moisture deficit. The results suggest that stalagmites from shallow caves in drought-sensitive eastern Australia potentially preserve a valuable record of El Niño-La Niña history.
Drysdale Russell
Hill David
McDonald Janece
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