Climatic variability in the southwest Pacific during the Last Termination (20–10kyrBP)

Turney, Chris S. M.; Kershaw, A. Peter; Lowe, John J.; Kaars, Sander van der; Rochelle, Johnston,; Rule, Susan; Moss, Patrick; Radke, Lawrence F.; Tibby, John; McGlone, Matt S.; Wilmshurst, Janet M.; Vandergoes, Marcus J.; Fitzsimons, Sean J.; Bryant, Charlotte; James, Sarah; Branch, Nick; Cowley, Joan; Kalin, Robert M.; Ogle, Neil; Jacobsen, Geraldine; Fifield, L.K.

doi:10.1016/j.quascirev.2005.09.007

Cited by 71 publications

(39 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the last glacial, the vegetation was dominated by sclerophyll with a peak in herbs. A virtually identical oscillation with increased representation of herbs is recognised to the immediate south in Lynch's Crater (Kershaw, 1986;Turney et al, 2006), representing a contraction of rainforest taxa, and inferred to be a correlative of the cold and dry glacial conditions of the LGM. A previously published reconstruction from Tower Hill (Victoria) indicated a steppe-grassland taxa dominated the record from at least 22 cal.…”

Section: Geochronologymentioning

confidence: 88%

“…ka BP, replacing the steppe grassland taxa of the LGM. Conditions appear to have been relatively dry after this time, with an increase in Chenopodiaceae suggesting salt marsh invasion of an ephemeral saline lake (Turney et al, 2006). Around 14 cal.…”

Section: Geochronologymentioning

confidence: 96%

“…Two periods of significant climatic change can be identified from Tower Hill (D 'Costa et al, 1989;Turney et al, 2006) within this period. An increase in temperature is indicated by the first sustained increase in Eucalyptus pollen at 17 cal.…”

Section: Geochronologymentioning

confidence: 99%

“…Wetter conditions appear to have developed around 13.7 cal. ka BP with the replacement of Chenopodiaceae by Botryococcus (a fresh to brackish water alga) (Turney et al, 2006).…”

Section: Geochronologymentioning

confidence: 99%

“…ka BP, with reduced percentages for Casuarinaceae pollen, higher values of grass and a limited, but persistent, presence of Chenopodiaceae pollen (Turney et al, 2006; Fig. 3).…”

Section: Geochronologymentioning

confidence: 99%

See 4 more Smart Citations

Integration of ice‐core, marine and terrestrial records for the Australian Last Glacial Maximum and Termination: a contribution from the OZ INTIMATE group

Turney

Haberle

Fink

et al. 2006

J Quaternary Science

View full text Add to dashboard Cite

The degree to which Southern Hemisphere climatic changes during the end of the last glacial period and early Holocene (30-8 ka) were influenced or initiated by events occurring in the high latitudes of the Northern Hemisphere is a complex issue. There is conflicting evidence for the degree of hemispheric 'teleconnection' and an unresolved debate as to the principle forcing mechanism(s). The available hypotheses are difficult to test robustly, however, because the few detailed palaeoclimatic records in the Southern Hemisphere are widely dispersed and lack duplication. Here we present climatic and environmental reconstructions from across Australia, a key region of the Southern Hemisphere because of the range of environments it covers and the potentially important role regional atmospheric and oceanic controls play in global climate change. We identify a general scheme of events for the end of the last glacial period and early Holocene but a detailed reconstruction proved problematic. Significant progress in climate quantification and geochronological control is now urgently required to robustly investigate change through this period.

show abstract

Section: Geochronologymentioning

confidence: 88%

Section: Geochronologymentioning

confidence: 96%

Section: Geochronologymentioning

confidence: 99%

“…Wetter conditions appear to have developed around 13.7 cal. ka BP with the replacement of Chenopodiaceae by Botryococcus (a fresh to brackish water alga) (Turney et al, 2006).…”

Section: Geochronologymentioning

confidence: 99%

“…ka BP, with reduced percentages for Casuarinaceae pollen, higher values of grass and a limited, but persistent, presence of Chenopodiaceae pollen (Turney et al, 2006; Fig. 3).…”

Section: Geochronologymentioning

confidence: 99%

See 3 more Smart Citations

Integration of ice‐core, marine and terrestrial records for the Australian Last Glacial Maximum and Termination: a contribution from the OZ INTIMATE group

Turney

Haberle

Fink

et al. 2006

J Quaternary Science

View full text Add to dashboard Cite

show abstract

Simulated changes in atmospheric dust in response to a Heinrich stadial

et al. 2014

View full text Add to dashboard Cite

Heinrich stadials (HS), thought to be triggered by increased ice discharge in the high‐latitude North Atlantic at glacial periods, resulted in large freshwater forcing that weakened the Atlantic Meridional Overturning Circulation (AMOC). These events are strongly expressed in paleoclimate records throughout the Atlantic basin and much of the tropics. Compared to the Last Glacial Maximum, recent proxy data suggest HS were much drier and dustier in large parts of the tropics. We use a global climate model coupled to a prognostic dust model to examine the response of dust to changes in climate during HS. Despite some significant changes in regional precipitation patterns in response to the simulated shift in the Intertropical Convergence Zone, we find that changes in winds have a larger effect on dust mobilization and deposition patterns than soil moisture or vegetation changes associated with a weaker AMOC. Although Europe was colder and drier during HS, the annual mean glaciogenic dust emission rate is lower because a southward shift in the Northern Hemisphere jet stream leads to weaker winds and less dust mobilization. The proximity of the westerly wind anomaly associated with the jet stream shift increases gustiness and dust mobilization over northwestern Africa and shifts the African Easterly Jet southward resulting in less African dust transport and deposition over the North Tropical Atlantic. Drier conditions over the Sahel region of North Africa, however, do not lead to increased dust mobilization in our model. When we perturb Sahelian soil characteristics, our results are in better agreement with proxies.

show abstract

Australia and the Southwest Pacific

Kershaw

Kaars

2012

Quaternary Environmental Change in the Tropics

View full text Add to dashboard Cite

Climatic variability in the southwest Pacific during the Last Termination (20–10kyrBP)

Cited by 71 publications

References 67 publications

Integration of ice‐core, marine and terrestrial records for the Australian Last Glacial Maximum and Termination: a contribution from the OZ INTIMATE group

Integration of ice‐core, marine and terrestrial records for the Australian Last Glacial Maximum and Termination: a contribution from the OZ INTIMATE group

Simulated changes in atmospheric dust in response to a Heinrich stadial

Australia and the Southwest Pacific

Contact Info

Product

Resources

About