Precipitation stable isotopes δ 2 H and δ 18 O in the Sydney Basin

Catherine E. Hughes, Jagoda Crawford, Stephen Parkes, Suzanne Hollins

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Stable water isotopes δ 2 H and δ 18 O are increasingly considered a standard parameter to be analysed in groundwater sampling, and are also considered useful in studies of surface waters and land surface processes. They may be used in determining water sources and mixing relationships, as well as being an indicator of evaporation. An important parameter for hydrological studies using stable water isotopes is the composition of the precipitation input. Four years of event based or weekly precipitation samples were collected and analysed for stable water isotopes δ 2 H and δ 18 O at four sites around the Sydney Basin: Lucas Heights, Mt Werong, Lithgow and Big Hill. These data have been used to determine weighted average values, meteoric water lines and investigate seasonal, event size and geographical effects on isotopic composition. Air parcel back trajectories, together with rainfall and humidity along the back trajectories, and mean sea level pressure maps (MSLP) are used to identify conditions associated with isotopically depleted and isotopically enriched rainfall samples at Mt Werong.

Original languageEnglish (US)
Title of host publicationProceedings of the 34th Hydrology and Water Resources Symposium, HWRS 2012
PublisherEngineers Australia
Pages1586-1593
Number of pages8
ISBN (Electronic)9781922107626
StatePublished - Jan 1 2012
Event34th Hydrology and Water Resources Symposium, HWRS 2012 - Sydney, Australia
Duration: Nov 19 2012Nov 22 2012

Publication series

NameProceedings of the 34th Hydrology and Water Resources Symposium, HWRS 2012

Other

Other34th Hydrology and Water Resources Symposium, HWRS 2012
CountryAustralia
CitySydney
Period11/19/1211/22/12

ASJC Scopus subject areas

  • Ocean Engineering
  • Water Science and Technology
  • Oceanography

Fingerprint Dive into the research topics of 'Precipitation stable isotopes δ <sup>2</sup> H and δ <sup>18</sup> O in the Sydney Basin'. Together they form a unique fingerprint.

Cite this