Drip hydrology monitoring in caves to inform stalagmite palaeoclimate records, Yarrangobilly, NSW

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dc.contributor.authorMarkowska, Men_AU
dc.contributor.authorTreble, PCen_AU
dc.contributor.authorBaker, AAen_AU
dc.contributor.authorAndersen, MSen_AU
dc.contributor.authorHankin, SIen_AU
dc.date.accessioned2020-06-10T04:28:26Zen_AU
dc.date.available2020-06-10T04:28:26Zen_AU
dc.date.issued2014-01-01en_AU
dc.date.statistics2020-01-01en_AU
dc.description.abstractPalaeoclimate research using speleothems has significantly increased over the last decade, owing to their potential to provide multi-proxy high resolution (sub-annual) terrestrial records of past climate variability. A crucial step in using these archives as high resolution proxies is understanding the connectivity between the surface climate and the signal transferred to the speleothem. This study investigates the modern karst hydrology at Yarrangobilly Caves, in the Snowy Mountains NSW. A high-frequency, spatially-dense drip water monitoring campaign in Harrie Wood Cave, was conducted over a 13 month period to characterise the hydrology of 14 sites within the same cave. By utilising the cave as a natural observatory we can determine 1) vadose-zone flow regimes, and 2) thresholds of recharge at the site. Using a statistical approach (PCA and AHC) 5 main drip hydrological regimes were established. Depth was found to have a moderate relationship (r2 = 0.4) with discharge, whereby increasing depth was associated with a dampening of flow and drip response. However, depth could not account for all the variability observed in the drip hydrology, suggesting complex controls unrelated to depth, such as unsaturated zone storage and mixing, appear to have a significant impact on vadose-zone flow regimes. As a speleothem is a function of the infiltrating drip water, we suggest that stalagmites fed by different drip types may thus contain different parts of the climate record i.e. smoothed mean annual vs. an extreme event record. These findings will be used to assess three suitable stalagmites for palaeoclimate reconstruction, fed by drip waters with different hydrological regimes and the preliminary results presented here. © Australasian Quaternary Association Inc.en_AU
dc.identifier.citationMarkowska, M., Treble, P. C., Baker, A., Andersen, M. S., & Hankin, S. (2014). Drip hydrology monitoring in caves to inform stalagmite palaeoclimate records, Yarrangobilly, NSW. Paper presented at the AQUA Biennial Meeting, Mildura, Australia, 29th June - 4th July 2014.en_AU
dc.identifier.conferenceenddate4 July 2014en_AU
dc.identifier.conferencenameAQUA Biennial Meetingen_AU
dc.identifier.conferenceplaceMildura, Victoriaen_AU
dc.identifier.conferencestartdate29 June 2014en_AU
dc.identifier.govdoc9639en_AU
dc.identifier.urihttps://aqua.org.au/wp-content/uploads/2013/06/AQUA2014-program.pdfen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9533en_AU
dc.language.isoenen_AU
dc.publisherAustralasian Quaternary Association Incen_AU
dc.subjectAustraliaen_AU
dc.subjectNew South Walesen_AU
dc.subjectHydrologyen_AU
dc.subjectCavesen_AU
dc.subjectGroundwater rechargeen_AU
dc.subjectPaleoclimatologyen_AU
dc.titleDrip hydrology monitoring in caves to inform stalagmite palaeoclimate records, Yarrangobilly, NSWen_AU
dc.typeConference Abstracten_AU
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