High Pacific-Papua native Tudhope

Core/Site name:

Multiple Sites

Country/Region:

Papua New Guinea

Archive:

corals

Species:

Porites

Proxy measurement:

d18o

Sampling resolution:

sub-annual

Climate sensitivity:

Biological Processes, Temperature, Salinity

Dating resolution:

Annual

Startyear:

-128035 AD

Endyear:

1995 AD

All uncertainties:

Dating uncertainties for fossil cores due to radiocarbon error

Description:

Results of analysis of cores collected from 'fossil' massive Porites corals exposed in the raised reefs of the Huon Peninsula, Papua New Guinea (see below for age estimate), and living corals. The cores were collected vertically down the axis of maximum growth of the colony. Cores were subsampled into 1mm growth increments, resulting in an average of 12 amples/annual growth increment. These samples were analysed for d18O, then the data interpolated to seasonal resolution(presented here). In this region, seasonal and interannual variations in skeletal d18O are due to the combined effects of changes in precipitation/evaporation balance and temperature; see Tudhope et al., 1995, Earth Planet. Sci. Lett., 136, 575, and Tudhope et al., 2001, Science, 291, 1511-1517 for further discussion of climatic interpretation.

Data entered by name:

Thirumalai, Kaustubh

Data entered by email:

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Main reference(s):

Tudhope, A.W., C.P. Chilcott, M.T. McCulloch, E.R. Cook, J. Chappell, R.M. Ellam, D.W. Lea, J.M Lough, and G.B. Shimmield, 2001, Variability in the El Nino-Southern Oscillation through a glacial-interglacial cycle.Science, v.291 (5508), pp. 1511-1517, February 23, 2001.

Link to reference 1:

http://www.sciencemag.org/content/291/5508/1511

Data storage link 1:

http://hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:4358484979116565::::P1_STUDY_ID:1866

Data storage link 2:

ftp://ftp.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/readme_tudhope2001.txt

Current dating method:

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Annual snow acc rate:

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Category: Ocean2k