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McDonald et al. 2004

McDonald, J., Drysdale, R. and Hill, D. (2004). The 2002–2003 El Niño recorded in Australian cave drip waters: Implications for reconstructing rainfall histories using stalagmites. Geophysical Research Letters 31: doi: 10.1029/2004GL020859. issn: 0094-8276.

A 30-month study of drip hydrochemistry from Kooringa Cave, eastern Australia, revealed a clear geochemical response to the 2002--2003 El Ni¿o. 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 Ni¿o-La Ni¿a history.

BACKGROUND DATA FILES

	Abstract

Keywords
Global Change, Climate dynamics, Hydrology, Chemistry of fresh water, Hydrology, Drought, Hydrology, Groundwater hydrology, Hydrology, Hydroclimatology

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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