Evaporative cooling of speleothem drip water

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dc.contributor.authorCuthbert, MOen_AU
dc.contributor.authorRau, GCen_AU
dc.contributor.authorAndersen, MSen_AU
dc.contributor.authorRoshan, Hen_AU
dc.contributor.authorRutlidge, Hen_AU
dc.contributor.authorMarjo, CEen_AU
dc.contributor.authorMarkowska, Men_AU
dc.contributor.authorJex, CNen_AU
dc.contributor.authorGraham, PWen_AU
dc.contributor.authorMariethoz, Gen_AU
dc.contributor.authorAcworth, RIen_AU
dc.contributor.authorBaker, AAen_AU
dc.date.accessioned2014-09-16T00:18:32Zen_AU
dc.date.available2014-09-16T00:18:32Zen_AU
dc.date.issued2014-06-04en_AU
dc.date.statistics2014-09-16en_AU
dc.description.abstractThis study describes the first use of concurrent high-precision temperature and drip rate monitoring to explore what controls the temperature of speleothem forming drip water. Two contrasting sites, one with fast transient and one with slow constant dripping, in a temperate semi-arid location (Wellington, NSW, Australia), exhibit drip water temperatures which deviate significantly from the cave air temperature. We confirm the hypothesis that evaporative cooling is the dominant, but so far unattributed, control causing significant disequilibrium between drip water and host rock/air temperatures. The amount of cooling is dependent on the drip rate, relative humidity and ventilation. Our results have implications for the interpretation of temperature-sensitive, speleothem climate proxies such as delta O-18, cave microecology and the use of heat as a tracer in karst. Understanding the processes controlling the temperature of speleothem-forming cave drip waters is vital for assessing the reliability of such deposits as archives of climate change. © 2014, Nature Publishing Group.en_AU
dc.identifier.articlenumber5162en_AU
dc.identifier.citationCuthbert, M. O., Rau, G. C., Andersen, M. S., Roshan, H., Rutlidge, H., Marjo, C. E., Markowska, M., Jex, C. N., Graham, P. W., Mariethoz, G., Acworth, R. I., & Baker, A. (2014). Evaporative cooling of speleothem drip water. Scientific Reports, 4, 5162. doi:10.1038/srep05162en_AU
dc.identifier.govdoc5635en_AU
dc.identifier.issn2045-2322en_AU
dc.identifier.journaltitleScientific Reportsen_AU
dc.identifier.urihttp://dx.doi.org/10.1038/srep05162en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5860en_AU
dc.identifier.volume4en_AU
dc.language.isoenen_AU
dc.publisherNature Publishing Groupen_AU
dc.subjectClimatic changeen_AU
dc.subjectHeaten_AU
dc.subjectPaleoclimatologyen_AU
dc.subjectEvaporative coolingen_AU
dc.subjectWateren_AU
dc.subjectHumidityen_AU
dc.titleEvaporative cooling of speleothem drip wateren_AU
dc.typeJournal Articleen_AU
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