Broadening the Spatial Applicability of Paleoclimate Information-A Case Study for the Murray-Darling Basin, Australia
Identifieur interne : 004267 ( Main/Exploration ); précédent : 004266; suivant : 004268Broadening the Spatial Applicability of Paleoclimate Information-A Case Study for the Murray-Darling Basin, Australia
Auteurs : Michelle Ho [Australie] ; Danielle C. Verdon-Kidd [Australie] ; Anthony S. Kiem [Australie] ; Russell N. Drysdale [Australie, France]Source :
- Journal of climate [ 0894-8755 ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Hydroclimatologie, Reconstruction historique, Siècle 20eme, Bassin versant, Précipitation atmosphérique, Pluie, Variabilité climatique, Analyse corrélation, Analyse composante principale, Interpolation optimale, Analyse objective, Evaluation risque, Long terme, Bassin Murray, Gestion risque, Indicateur.
English descriptors
- KwdEn :
Abstract
Recent advances in the collection and analysis of paleoclimate data have provided significant insights into preinstrumental environmental events and processes, enabling a greater understanding of long-term environmental change and associated hydroclimatic risks. Unfortunately, it is often the case that there is a dearth of readily available paleoclimate data from regions where such insights and long-term data are most needed. The Murray-Darling basin (MDB), known as Australia's "food bowl," is an example of such a region where currently there are very limited in situ paleoclimate data available. While previous studies have utilized paleoclimate proxy records of large-scale climate mechanisms to infer preinstrumental MDB hydroclimatic variability, there is a lack of studies that utilize Australian terrestrial proxy records to garner similar information. Given the immediate need for improved understanding of MDB hydroclimatic variability, this paper identifies key locations in Australia where existing and as yet unrealized paleoclimate records will be most useful in reconstructing such information. To identify these key locations, rainfall relationships between MDB and non-MDB locations were explored through correlations and principal component analysis. An objective analysis using optimal interpolation was then used to pinpoint the most strategic locations to further develop proxy records and gain insights into the benefits of obtaining this additional information. The findings reveal that there is potential for the future assembly of high-resolution paleoclimate records in Australia capable of informing MDB rainfall variability, in particular southeast Australia and central-northern Australia. This study highlights the need for further investment in the development of these potential proxy sources to subsequently enable improved assessments of long-term hydroclimatic risks.
Affiliations:
- Australie, France
- Auvergne-Rhône-Alpes, Rhône-Alpes, Victoria (État)
- Chambéry, Grenoble, Melbourne
- Université Savoie Mont Blanc, Université de Grenoble, Université de Melbourne
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000199
- to stream PascalFrancis, to step Curation: 005C66
- to stream PascalFrancis, to step Checkpoint: 000415
- to stream Main, to step Merge: 004339
- to stream Main, to step Curation: 004267
Le document en format XML
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Unfortunately, it is often the case that there is a dearth of readily available paleoclimate data from regions where such insights and long-term data are most needed. The Murray-Darling basin (MDB), known as Australia's "food bowl," is an example of such a region where currently there are very limited in situ paleoclimate data available. While previous studies have utilized paleoclimate proxy records of large-scale climate mechanisms to infer preinstrumental MDB hydroclimatic variability, there is a lack of studies that utilize Australian terrestrial proxy records to garner similar information. Given the immediate need for improved understanding of MDB hydroclimatic variability, this paper identifies key locations in Australia where existing and as yet unrealized paleoclimate records will be most useful in reconstructing such information. To identify these key locations, rainfall relationships between MDB and non-MDB locations were explored through correlations and principal component analysis. An objective analysis using optimal interpolation was then used to pinpoint the most strategic locations to further develop proxy records and gain insights into the benefits of obtaining this additional information. The findings reveal that there is potential for the future assembly of high-resolution paleoclimate records in Australia capable of informing MDB rainfall variability, in particular southeast Australia and central-northern Australia. This study highlights the need for further investment in the development of these potential proxy sources to subsequently enable improved assessments of long-term hydroclimatic risks.</div></front></TEI><affiliations><list><country><li>Australie</li><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Rhône-Alpes</li><li>Victoria (État)</li></region><settlement><li>Chambéry</li><li>Grenoble</li><li>Melbourne</li></settlement><orgName><li>Université Savoie Mont Blanc</li><li>Université de Grenoble</li><li>Université de Melbourne</li></orgName></list><tree><country name="Australie"><noRegion><name sortKey="Ho, Michelle" sort="Ho, Michelle" uniqKey="Ho M" first="Michelle" last="Ho">Michelle Ho</name></noRegion><name sortKey="Drysdale, Russell N" sort="Drysdale, Russell N" uniqKey="Drysdale R" first="Russell N." last="Drysdale">Russell N. Drysdale</name><name sortKey="Kiem, Anthony S" sort="Kiem, Anthony S" uniqKey="Kiem A" first="Anthony S." last="Kiem">Anthony S. Kiem</name><name sortKey="Verdon Kidd, Danielle C" sort="Verdon Kidd, Danielle C" uniqKey="Verdon Kidd D" first="Danielle C." last="Verdon-Kidd">Danielle C. Verdon-Kidd</name></country><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Drysdale, Russell N" sort="Drysdale, Russell N" uniqKey="Drysdale R" first="Russell N." last="Drysdale">Russell N. Drysdale</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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