An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia
Paleoclimate research indicates that the Australian instrumental climate record (∼ 100 years) does not cover the full range of hydroclimatic variability that is possible. To better understand the implications of this on catchment-scale water resources management, a 1013-year (10002012 common era (CE...
Published in: | Hydrology and Earth System Sciences |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
European Geophysical Soc
2016
|
Subjects: | |
Online Access: | https://doi.org/10.5194/hess-20-1703-2016 http://ecite.utas.edu.au/109805 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:109805 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:109805 2023-05-15T14:03:26+02:00 An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia Tozer, CR Vance, TR Roberts, JL Kiem, AS Curran, MAJ Moy, AD 2016 application/pdf https://doi.org/10.5194/hess-20-1703-2016 http://ecite.utas.edu.au/109805 en eng European Geophysical Soc http://ecite.utas.edu.au/109805/1/Tozer et al, An ice core derived 1013-yr catchment scale annual rainfall recon, 2016.pdf http://dx.doi.org/10.5194/hess-20-1703-2016 Tozer, CR and Vance, TR and Roberts, JL and Kiem, AS and Curran, MAJ and Moy, AD, An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia, Hydrology and Earth System Sciences, 20, (5) pp. 1703-1717. ISSN 1027-5606 (2016) [Refereed Article] http://ecite.utas.edu.au/109805 Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology Refereed Article PeerReviewed 2016 ftunivtasecite https://doi.org/10.5194/hess-20-1703-2016 2019-12-13T22:10:26Z Paleoclimate research indicates that the Australian instrumental climate record (∼ 100 years) does not cover the full range of hydroclimatic variability that is possible. To better understand the implications of this on catchment-scale water resources management, a 1013-year (10002012 common era (CE)) annual rainfall reconstruction was produced for the Williams River catchment in coastal eastern Australia. No high-resolution paleoclimate proxies are located in the region and so a teleconnection between summer sea salt deposition recorded in ice cores from East Antarctica and rainfall variability in eastern Australia was exploited to reconstruct the catchment-scale rainfall record. The reconstruction shows that significantly longer and more frequent wet and dry periodswere experienced in the preinstrumental compared to the instrumental period. This suggests that existing drought and flood risk assessments underestimate the true risks due to the reliance on data and statistics obtained from only the instrumental record. This raises questions about the robustness of existing water security and flood protection measures and has serious implications for water resources management, infrastructure design and catchment planning. The method used in this proof of concept study is transferable and enables similar insights into the true risk of flood/drought to be gained for other paleoclimate proxy poor regions for which suitable remote teleconnected proxies exist. This will lead to improved understanding and ability to deal with the impacts of multi-decadal to centennial hydroclimatic variability. Article in Journal/Newspaper Antarc* Antarctica East Antarctica ice core eCite UTAS (University of Tasmania) East Antarctica Hydrology and Earth System Sciences 20 5 1703 1717 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology Tozer, CR Vance, TR Roberts, JL Kiem, AS Curran, MAJ Moy, AD An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology |
description |
Paleoclimate research indicates that the Australian instrumental climate record (∼ 100 years) does not cover the full range of hydroclimatic variability that is possible. To better understand the implications of this on catchment-scale water resources management, a 1013-year (10002012 common era (CE)) annual rainfall reconstruction was produced for the Williams River catchment in coastal eastern Australia. No high-resolution paleoclimate proxies are located in the region and so a teleconnection between summer sea salt deposition recorded in ice cores from East Antarctica and rainfall variability in eastern Australia was exploited to reconstruct the catchment-scale rainfall record. The reconstruction shows that significantly longer and more frequent wet and dry periodswere experienced in the preinstrumental compared to the instrumental period. This suggests that existing drought and flood risk assessments underestimate the true risks due to the reliance on data and statistics obtained from only the instrumental record. This raises questions about the robustness of existing water security and flood protection measures and has serious implications for water resources management, infrastructure design and catchment planning. The method used in this proof of concept study is transferable and enables similar insights into the true risk of flood/drought to be gained for other paleoclimate proxy poor regions for which suitable remote teleconnected proxies exist. This will lead to improved understanding and ability to deal with the impacts of multi-decadal to centennial hydroclimatic variability. |
format |
Article in Journal/Newspaper |
author |
Tozer, CR Vance, TR Roberts, JL Kiem, AS Curran, MAJ Moy, AD |
author_facet |
Tozer, CR Vance, TR Roberts, JL Kiem, AS Curran, MAJ Moy, AD |
author_sort |
Tozer, CR |
title |
An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
title_short |
An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
title_full |
An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
title_fullStr |
An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
title_full_unstemmed |
An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia |
title_sort |
ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern australia |
publisher |
European Geophysical Soc |
publishDate |
2016 |
url |
https://doi.org/10.5194/hess-20-1703-2016 http://ecite.utas.edu.au/109805 |
geographic |
East Antarctica |
geographic_facet |
East Antarctica |
genre |
Antarc* Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctica East Antarctica ice core |
op_relation |
http://ecite.utas.edu.au/109805/1/Tozer et al, An ice core derived 1013-yr catchment scale annual rainfall recon, 2016.pdf http://dx.doi.org/10.5194/hess-20-1703-2016 Tozer, CR and Vance, TR and Roberts, JL and Kiem, AS and Curran, MAJ and Moy, AD, An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia, Hydrology and Earth System Sciences, 20, (5) pp. 1703-1717. ISSN 1027-5606 (2016) [Refereed Article] http://ecite.utas.edu.au/109805 |
op_doi |
https://doi.org/10.5194/hess-20-1703-2016 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
20 |
container_issue |
5 |
container_start_page |
1703 |
op_container_end_page |
1717 |
_version_ |
1766274090900914176 |