IMAS Metadata Catalogue
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 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.
Simple
Identification info
- Date (Creation)
- 2020-08-27
- Date (Publication)
- 2020-08-31
Identifier
- Title
- Information and documentation - Digital object identifier system
- Citation identifier
- ISO 26324:2012
- Codespace
- doi.org
- Description
- Digital Object Identifier (DOI)
Principal investigator
Collaborator
- Credit
- Australian Research Council's Special Research Initiative for the Antarctic Gateway Partnership (Project ID SR140300001)
- Credit
- Centre for Southern Hemisphere Oceans Research, a joint research centre between QNLM and CSIRO, and (iii) the Australia’s Antarctic program (AAS 4061, 4062 and 4537)
- Credit
- IMAS Honours Student Program 2019-2020
- Status
- Completed
Point of contact
- Topic category
-
- Climatology, meteorology, atmosphere
Extent
))
Temporal extent
- Time period
- 2019-08-31 2020-06-22
- Maintenance and update frequency
- Not planned
- Keywords (Place)
-
- South West Western Australia
- Global Change Master Directory Earth Science Keywords, Version 8.5
- Keywords (Theme)
-
- South West Western Australia rainfall reconstruction
Resource constraints
- Classification
- Unclassified
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
http://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Cite data as: Zheng, Y., Phipps, S., Roberts, J. and Jong, L.M. (2020). Extending and understanding the South West Western Australian rainfall record using the Dome Summit South ice core, East Antarctica [Dataset]. Institute for Marine and Antarctic Studies. https://doi.org/10.25959/5f4c50b7b661f
- Language
- English
- Character encoding
- UTF8
Content Information
- Content type
- Physical measurement
- Name
- South West Western Australia rainfall reconstruction
- Name
- Rainfall Reconstruction
- Name
- mm/year
Distribution Information
- Distribution format
-
- .xlsx
- OnLine resource
- DATA ACCESS - SWWA rainfall reconstruction
Resource lineage
- Statement
- 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.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- urn:uuid/d7d5ea56-f972-435d-b44b-44fea598150c
- Language
- English
- Character encoding
- UTF8
Publisher
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/d7d5ea56-f972-435d-b44b-44fea598150c
Point of truth URL of this metadata record
- Date info (Creation)
- 2021-01-18T11:56:08
- Date info (Revision)
- 2026-10-25T15:14:12
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
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