Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica
A 2038-year South West Western Australia rainfall reconstruction. The prolonged rainfall reduction in South West Western Australia (SWWA) in recent decades has previously been reported to be unprecedented in the past 750 years. This rainfall reduction has reduced the water supply for both residents...
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University of Tasmania, Australia
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ftands:oai:ands.org.au::1601382 2023-05-15T13:53:57+02:00 Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica Zheng,Yaowen (hasPrincipalInvestigator) Zheng,Yaowen (pointOfContact) Phipps, Steven (coInvestigator) Roberts, Jason (coInvestigator) Jong, Lenneke M (coInvestigator) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) Australian Antarctic Division (AAD), Department of the Environment (DoE), Australian Government (hasAssociationWith) Spatial: northlimit=-32.1428502819; southlimit=-34.8887751782; westlimit=113.451660491; eastLimit=119.384277679 Temporal: From 2019-08-31 to 2020-06-22 https://researchdata.edu.au/extending-understanding-south-east-antarctica/1601382 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c unknown University of Tasmania, Australia https://researchdata.edu.au/extending-understanding-south-east-antarctica/1601382 d7d5ea56-f972-435d-b44b-44fea598150c https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c https://metadata.imas.utas.edu.au climatologyMeteorologyAtmosphere South West Western Australia PALEOCLIMATE RECONSTRUCTIONS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS DROUGHT/PRECIPITATION RECONSTRUCTION Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES dataset ftands 2021-01-25T23:22:29Z A 2038-year South West Western Australia rainfall reconstruction. The prolonged rainfall reduction in South West Western Australia (SWWA) in recent decades has previously been reported to be unprecedented in the past 750 years. This rainfall reduction has reduced the water supply for both residents and agriculture in SWWA. However, the cause of this rainfall reduction is unclear. The relatively short length of the SWWA instrumental rainfall record limits longterm studies of SWWA rainfall. In this study, SWWA rainfall is reconstructed based on a statistically significant negative correlation between SWWA rainfall and snowfall at Dome Summit South (DSS), East Antarctica. The 2000-year DSS snow accumulation record is used to reconstruct SWWA rainfall from 22 BCE to 2015 CE. With Cumulative Summation (CUSUM) analysis applied to the rainfall reconstruction, it is found that SWWA rainfall started to reduce around 1971 CE. This prolonged rainfall reduction is unprecedented during the past 750 years, but there have been two prior droughts of similar duration and intensity during the past 2000 years. Applying statistical techniques to compare the rainfall reconstruction with climate model simulations, it is found that greenhouse gases are likely to be the dominant driver of the SWWA rainfall drying trend after 1971 CE. The South West Western Australia (SWWA) growing season (May to October) rainfall was reconstructed based on a statistically significant negative correlation between SWWA rainfall and snowfall at Dome Summit South (DSS), East Antarctica. The 200-year DSS snow accumulation record is used to reconstruct SWWA rainfall from 22 BCE to 2015 CE. Dataset Antarc* Antarctica East Antarctica ice core Research Data Australia (Australian National Data Service - ANDS) East Antarctica South Ice ENVELOPE(-29.867,-29.867,-81.950,-81.950) ENVELOPE(113.451660491,119.384277679,-32.1428502819,-34.8887751782) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
climatologyMeteorologyAtmosphere South West Western Australia PALEOCLIMATE RECONSTRUCTIONS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS DROUGHT/PRECIPITATION RECONSTRUCTION Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES |
spellingShingle |
climatologyMeteorologyAtmosphere South West Western Australia PALEOCLIMATE RECONSTRUCTIONS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS DROUGHT/PRECIPITATION RECONSTRUCTION Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
topic_facet |
climatologyMeteorologyAtmosphere South West Western Australia PALEOCLIMATE RECONSTRUCTIONS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS DROUGHT/PRECIPITATION RECONSTRUCTION Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES |
description |
A 2038-year South West Western Australia rainfall reconstruction. The prolonged rainfall reduction in South West Western Australia (SWWA) in recent decades has previously been reported to be unprecedented in the past 750 years. This rainfall reduction has reduced the water supply for both residents and agriculture in SWWA. However, the cause of this rainfall reduction is unclear. The relatively short length of the SWWA instrumental rainfall record limits longterm studies of SWWA rainfall. In this study, SWWA rainfall is reconstructed based on a statistically significant negative correlation between SWWA rainfall and snowfall at Dome Summit South (DSS), East Antarctica. The 2000-year DSS snow accumulation record is used to reconstruct SWWA rainfall from 22 BCE to 2015 CE. With Cumulative Summation (CUSUM) analysis applied to the rainfall reconstruction, it is found that SWWA rainfall started to reduce around 1971 CE. This prolonged rainfall reduction is unprecedented during the past 750 years, but there have been two prior droughts of similar duration and intensity during the past 2000 years. Applying statistical techniques to compare the rainfall reconstruction with climate model simulations, it is found that greenhouse gases are likely to be the dominant driver of the SWWA rainfall drying trend after 1971 CE. The South West Western Australia (SWWA) growing season (May to October) rainfall was reconstructed based on a statistically significant negative correlation between SWWA rainfall and snowfall at Dome Summit South (DSS), East Antarctica. The 200-year DSS snow accumulation record is used to reconstruct SWWA rainfall from 22 BCE to 2015 CE. |
author2 |
Zheng,Yaowen (hasPrincipalInvestigator) Zheng,Yaowen (pointOfContact) Phipps, Steven (coInvestigator) Roberts, Jason (coInvestigator) Jong, Lenneke M (coInvestigator) Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) (hasAssociationWith) Australian Antarctic Division (AAD), Department of the Environment (DoE), Australian Government (hasAssociationWith) |
format |
Dataset |
title |
Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
title_short |
Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
title_full |
Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
title_fullStr |
Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
title_full_unstemmed |
Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica |
title_sort |
extending and understanding the south west western australian rainfall record using the dome summit south ice core, east antarctica |
publisher |
University of Tasmania, Australia |
url |
https://researchdata.edu.au/extending-understanding-south-east-antarctica/1601382 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c |
op_coverage |
Spatial: northlimit=-32.1428502819; southlimit=-34.8887751782; westlimit=113.451660491; eastLimit=119.384277679 Temporal: From 2019-08-31 to 2020-06-22 |
long_lat |
ENVELOPE(-29.867,-29.867,-81.950,-81.950) ENVELOPE(113.451660491,119.384277679,-32.1428502819,-34.8887751782) |
geographic |
East Antarctica South Ice |
geographic_facet |
East Antarctica South Ice |
genre |
Antarc* Antarctica East Antarctica ice core |
genre_facet |
Antarc* Antarctica East Antarctica ice core |
op_source |
https://metadata.imas.utas.edu.au |
op_relation |
https://researchdata.edu.au/extending-understanding-south-east-antarctica/1601382 d7d5ea56-f972-435d-b44b-44fea598150c https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c |
_version_ |
1766259438498349056 |