2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS]
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 reduc...
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University of Tasmania, Australia
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Online Access: | https://researchdata.edu.au/2019-20-honours-antarctica-thesis/1601337 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=47848595-038b-46b3-ba75-6f52d5295a62 https://data.imas.utas.edu.au/attachments/47848595-038b-46b3-ba75-6f52d5295a62/Thesis_Yaowen_ZHENG.pdf |
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ftands:oai:ands.org.au::1601337 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
climatologyMeteorologyAtmosphere ICE CORE RECORDS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS PALEOCLIMATE FORCING CARBON DIOXIDE FORCING ORBITAL CHANGE FORCING SOLAR FORCING VOLCANIC FORCING PALEOCLIMATE RECONSTRUCTIONS DROUGHT/PRECIPITATION RECONSTRUCTION PALEOCLIMATE Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES |
spellingShingle |
climatologyMeteorologyAtmosphere ICE CORE RECORDS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS PALEOCLIMATE FORCING CARBON DIOXIDE FORCING ORBITAL CHANGE FORCING SOLAR FORCING VOLCANIC FORCING PALEOCLIMATE RECONSTRUCTIONS DROUGHT/PRECIPITATION RECONSTRUCTION PALEOCLIMATE Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES 2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
topic_facet |
climatologyMeteorologyAtmosphere ICE CORE RECORDS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS PALEOCLIMATE FORCING CARBON DIOXIDE FORCING ORBITAL CHANGE FORCING SOLAR FORCING VOLCANIC FORCING PALEOCLIMATE RECONSTRUCTIONS DROUGHT/PRECIPITATION RECONSTRUCTION PALEOCLIMATE Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES |
description |
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 long term 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. This record describes the Honours Thesis [available for download in 'Online Resources' section of thsi record]. For the data generated by this project, see https://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c An inverse relationship between rainfall in South West Western Australia (SWWA) and the snowfall recorded in the Dome Summit South (DSS) ice core, East Antarctica, was found by van Ommen and Morgan (2010). We test the statistical significance of this negative correlation and use a 2000-year DSS snow accumulation record to reconstruct SWWA rainfall from 22 BCE to 2015 CE. We also analysis 1500-year model simulations from CSIRO Mk3L climate model. Use statistical techniques to compare the rainfall reconstruction with climate model simulations to determine the drivers of the rainfall changes in SWWA. |
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 |
2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
title_short |
2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
title_full |
2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
title_fullStr |
2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
title_full_unstemmed |
2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] |
title_sort |
2019-20 honours project - extending and understanding the south west western australian rainfall record using the dome summit south ice core, east antarctica [thesis] |
publisher |
University of Tasmania, Australia |
url |
https://researchdata.edu.au/2019-20-honours-antarctica-thesis/1601337 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=47848595-038b-46b3-ba75-6f52d5295a62 https://data.imas.utas.edu.au/attachments/47848595-038b-46b3-ba75-6f52d5295a62/Thesis_Yaowen_ZHENG.pdf |
op_coverage |
Spatial: northlimit=-63.8985383187; southlimit=-69.411088495; westlimit=106.130859375; eastLimit=119.841796875 Spatial: northlimit=-30.8481494816; southlimit=-36.323722764; westlimit=111.389648438; eastLimit=121.057617188 Temporal: From 2019-08-01 to 2020-06-22 |
long_lat |
ENVELOPE(-29.867,-29.867,-81.950,-81.950) ENVELOPE(106.130859375,119.841796875,-63.8985383187,-69.411088495) ENVELOPE(111.389648438,121.057617188,-30.8481494816,-36.323722764) |
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/2019-20-honours-antarctica-thesis/1601337 47848595-038b-46b3-ba75-6f52d5295a62 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=47848595-038b-46b3-ba75-6f52d5295a62 https://data.imas.utas.edu.au/attachments/47848595-038b-46b3-ba75-6f52d5295a62/Thesis_Yaowen_ZHENG.pdf |
_version_ |
1766113898127163392 |
spelling |
ftands:oai:ands.org.au::1601337 2023-05-15T13:39:00+02:00 2019-20 Honours project - Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [THESIS] 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=-63.8985383187; southlimit=-69.411088495; westlimit=106.130859375; eastLimit=119.841796875 Spatial: northlimit=-30.8481494816; southlimit=-36.323722764; westlimit=111.389648438; eastLimit=121.057617188 Temporal: From 2019-08-01 to 2020-06-22 https://researchdata.edu.au/2019-20-honours-antarctica-thesis/1601337 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=47848595-038b-46b3-ba75-6f52d5295a62 https://data.imas.utas.edu.au/attachments/47848595-038b-46b3-ba75-6f52d5295a62/Thesis_Yaowen_ZHENG.pdf unknown University of Tasmania, Australia https://researchdata.edu.au/2019-20-honours-antarctica-thesis/1601337 47848595-038b-46b3-ba75-6f52d5295a62 https://metadata.imas.utas.edu.au:443/geonetwork/srv/en/metadata.show?uuid=47848595-038b-46b3-ba75-6f52d5295a62 https://data.imas.utas.edu.au/attachments/47848595-038b-46b3-ba75-6f52d5295a62/Thesis_Yaowen_ZHENG.pdf https://metadata.imas.utas.edu.au climatologyMeteorologyAtmosphere ICE CORE RECORDS EARTH SCIENCE CLIMATE INDICATORS PALEOCLIMATE INDICATORS PALEOCLIMATE FORCING CARBON DIOXIDE FORCING ORBITAL CHANGE FORCING SOLAR FORCING VOLCANIC FORCING PALEOCLIMATE RECONSTRUCTIONS DROUGHT/PRECIPITATION RECONSTRUCTION PALEOCLIMATE Climatology (excl. Climate Change Processes) EARTH SCIENCES ATMOSPHERIC SCIENCES dataset ftands 2020-11-09T23:22:43Z 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 long term 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. This record describes the Honours Thesis [available for download in 'Online Resources' section of thsi record]. For the data generated by this project, see https://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid=d7d5ea56-f972-435d-b44b-44fea598150c An inverse relationship between rainfall in South West Western Australia (SWWA) and the snowfall recorded in the Dome Summit South (DSS) ice core, East Antarctica, was found by van Ommen and Morgan (2010). We test the statistical significance of this negative correlation and use a 2000-year DSS snow accumulation record to reconstruct SWWA rainfall from 22 BCE to 2015 CE. We also analysis 1500-year model simulations from CSIRO Mk3L climate model. Use statistical techniques to compare the rainfall reconstruction with climate model simulations to determine the drivers of the rainfall changes in SWWA. 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(106.130859375,119.841796875,-63.8985383187,-69.411088495) ENVELOPE(111.389648438,121.057617188,-30.8481494816,-36.323722764) |