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Interdecadal climate variability in the Coral Sea since 1708 AD

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dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Natl Univ
dc.contributor Inst Ciencias Mar
dc.contributor Australian National University
dc.contributor Csic - Centro Mediterraneo De Investigaciones Marinas Y Ambientales (cmima)
dc.contributor Csic
dc.contributor Consejo Superior De Investigaciones Cientificas (csic)
dc.contributor Cmima
dc.contributor Australian Inst Marine Sci
dc.contributor Res Sch Earth Sci
dc.contributor Csic - Instituto De Ciencias Del Mar (icm)
dc.contributor Icrea
dc.contributor Australian Institute Of Marine Science (aims) en LOUGH, JANICE M. CALVO, EVA MARSHALL, JOHN F. PELEJERO, CARLES MCCULLOCH, MALCOLM T. GAGAN, MICHAEL K. 2013-02-28T06:44:49Z 2013-02-28T06:44:49Z 2017-03-21T00:53:08Z 2020-07-20T00:17:27Z 2017-03-21T00:53:08Z 2013-02-28T06:44:49Z 2013-02-28T06:44:49Z 2020-07-20T00:17:27Z 2007-05-14
dc.identifier 7374 en
dc.identifier.citation Calvo E, Marshall JF, Pelejero C, McCulloch MT, Gagan MK and Lough JM (2007) Interdecadal climate variability in the Coral Sea since 1710 A.D.. Palaeogeography, Palaeoclimatology and Palaeoecology. 248: 190-201. en
dc.identifier.issn 0031-0182
dc.description Link to abstract/full text - en
dc.description.abstract Low resolution (5-year) Sr/Ca and delta O-18 samples, extending back to 1708 A.D., were analysed from a Porites coral core collected from Flinders Reef, an offshore reef on the Queensland Plateau in the western Coral Sea (17.5 degrees S, 148.3 degrees E). Using the Sr/ Ca ratio as a proxy for sea surface temperature (SST), we deconvolved a salinity record by subtracting the SST signal from the delta C-18 record. Decadal variability in the reconstructed salinity record is closely paralleled by changes in SST, with cooler (warmer) temperatures recorded during wetter (drier) periods. This relationship differs from the conventional view often described for tropical areas, where warm temperatures are associated with wet periods and cool temperatures with dry periods. The anticorrelation between reconstructed SST and salinity observed at Flinders Reef, however, matches the climatic effects expected from variations in the Interdecadal Pacific Oscillation (IPO), a recurrent pattern of SST variability over the Pacific Ocean which is known to modulate Australia's climate, in particular the impact of ENSO events on decadal time scales. On longer timescales, salinity seems to have remained almost constant for the last two centuries after a progressive freshening of surface waters that culminated around 1800 A.D. Conversely, SSTs show a warming trend towards the late 20th century. (C) 2006 Elsevier B.V. All rights reserved.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Palaeogeography, Palaeoclimatology and Palaeoecology - pages: 248: 190-201 en
dc.relation.ispartof Null
dc.subject Interdecadal Variability
dc.subject Ocean
dc.subject Physical Geography
dc.subject Australia
dc.subject El-nino
dc.subject Oscillation
dc.subject Interdecadal Pacific Oscillation
dc.subject Stable-isotope Record
dc.subject Paleontology
dc.subject Pacific Coral
dc.subject South Pacific
dc.subject Decadal Variability
dc.subject Coral Proxies
dc.subject Geosciences, Multidisciplinary
dc.subject Enso Teleconnections
dc.subject Coral Sea
dc.subject Surface Temperature
dc.subject Geography, Physical
dc.subject Salinity
dc.subject Geology
dc.subject Great-barrier-reef
dc.title Interdecadal climate variability in the Coral Sea since 1708 AD
dc.type journal article en
dc.identifier.doi 10.1016/j.palaeo.2006.12.003
dc.identifier.wos WOS:000246564400013

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