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Mid-Holocene Enso: Issues In Quantitative Model-Proxy Data Comparisons, J Brown, A W. Tudhope, M Collins, H V. Mcgregor
Mid-Holocene Enso: Issues In Quantitative Model-Proxy Data Comparisons, J Brown, A W. Tudhope, M Collins, H V. Mcgregor
Faculty of Science - Papers (Archive)
Evaluation of climate model simulations using observed data contributes to the assessment of confidence in model predictions of future climate change. The mid-Holocene represents an opportunity to evaluate model simulations of El Niño–Southern Oscillation (ENSO) in comparison with coral proxy evidence of reduced ENSO amplitude. Quantitative comparisons between coral records and model output have been limited by (1) the use of different measures of ENSO amplitude, (2) possible sampling of natural variability in short records, and (3) uncertainty about the stationarity of the relationship between central Pacific sea surface temperature (SST) variability and ENSO signals at the coral site. We …
The Holocene Paleo-Tsunami History Of West Australia, S. R. Scheffers, A. Scheffers, D. Kelletat, Edward A. Bryant
The Holocene Paleo-Tsunami History Of West Australia, S. R. Scheffers, A. Scheffers, D. Kelletat, Edward A. Bryant
Faculty of Science - Papers (Archive)
West Australian coastlines experienced several tsunamis in mid-Holocene times. To expand our knowledge about Holocene tsunami events in West Australia, the authors extended the previously studied spatial scale to include the central- and south-western coastlines. Several of the discovered events were mid- and young Holocene (≤1000 yr BP) tsunami impacts on the outer coast of the Cape Range Peninsula. Five hundred kilometres to the south between Cape Cuvier and Point Quobba, additional tsunami evidence exists on top of steep cliffs over a coastal stretch of 30 km. The sedimentary signature of two tsunamis is documented in this area by wide …
Western Pacific Coral Delta18o Records Of Anomalous Holocene Variability In El Nino-Southern Oscillation, Helen V. Mcgregor, M Gagan
Western Pacific Coral Delta18o Records Of Anomalous Holocene Variability In El Nino-Southern Oscillation, Helen V. Mcgregor, M Gagan
Faculty of Science - Papers (Archive)
No abstract provided.
The Imprint Of Tsunami In Quaternary Coastal Sediments Of Southeastern Australia, R. W. Young, Edward A. Bryant, David M. Price, E. Spassov
The Imprint Of Tsunami In Quaternary Coastal Sediments Of Southeastern Australia, R. W. Young, Edward A. Bryant, David M. Price, E. Spassov
Faculty of Science - Papers (Archive)
TL and 14C dating has revealed anomalous chronostratigraphies at two sites on the coast of southern New South Wales, Australia, where Pleistocene sands have been driven onshore over Holocene estuarine deposits. Lack of solar bleaching of the TL component which occurs in normal swash zones, an identical TL age obtained from pumice incorporated in the Pleistocene deposit, and boulders scattered through the sand are indicative of tsunami impact. These observations prompt reassessment of the strictly uniformitarian models of barrier emplacement during the Holocene transgression both in eastern Australia and elsewhere in the world where tsunami are a possibility.
Last Interglacial And Holocene Trends In Sea-Level Maxima Around Australia: Implications For Modern Rates, Edward A. Bryant
Last Interglacial And Holocene Trends In Sea-Level Maxima Around Australia: Implications For Modern Rates, Edward A. Bryant
Faculty of Science - Papers (Archive)
This paper defines the spatial trend in sea-level around Australia at 3 timescales, namely at the time of the maximum of the last interglacial around 125000 yr BP, during the Holocene maximum between 5-6000 yr BP and over the last 20 years. Last interglacial elevations range from -2m around the Great Barrier Reef to +32m in northeast Tasmania. Trend surface analysis shows that over 77% of the noise in these sea-level elevations can be accounted for by a pattern evidencing tectonic uplift towards the southern edge of the continent. Assuming a eustatic sea-level at this time of +4 to 6m, …