noaa-coral-9813
Papua New Guinea Holocene Coral Oxygen Isotope Data
McGregor, H.V.; Gagan, M.K.
Papua New Guinea Holocene Coral Oxygen Isotope Data
2010-11-15
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/9813
Investigator
H.V.
McGregor
Investigator
M.K.
Gagan
earth science
paleoclimate
corals and sclerosponges
delta 18O,Porites lutea,null,per mil VPDB,null,corals and sclerosponges,anomalized,isotope ratio mass spectrometry,N,anomalized to series mean
earth science
paleoclimate
corals and sclerosponges
delta 18O,Porites sp.,null,per mil VPDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
corals and sclerosponges
delta 18O,Porites lutea,null,per mil VPDB,null,corals and sclerosponges,raw,isotope ratio mass spectrometry,N,null
earth science
paleoclimate
corals and sclerosponges
age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null
earth science
paleoclimate
corals and sclerosponges
delta 18O,Porites sp.,null,per mil VPDB,null,corals and sclerosponges,anomalized,isotope ratio mass spectrometry,N,anomalized to series mean
earth science
paleoclimate
corals and sclerosponges
age,null,null,year,null,corals and sclerosponges,null,null,N,null
earth science
paleoclimate
corals and sclerosponges
oxygen isotopes
geoscientificInformation
ENSO
Warm Pool
7550 cal yr BP
-47 cal yr BP
Complete
-3.4132
-3.4064
143.6083
143.6363
Ocean
Pacific Ocean
South Pacific Ocean
Melanesia
Papua New Guinea
Cape Saum, Muschu Island>LATITUDE -3.4132>LONGITUDE 143.6363
Ocean
Pacific Ocean
South Pacific Ocean
Melanesia
Papua New Guinea
Morock Bay, Muschu Island>LATITUDE -3.4064>LONGITUDE 143.6083
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
McGregor, H.V., and M.K. Gagan. 2004.
Western Pacific coral d18O records of anomalous Holocene
variability in the El Nino-Southern Oscillation.
Geophysical Research Letters, 31, L11204, doi:10.1029/2004GL019972.
Skeletal oxygen isotope ratios in Holocene Porites corals from
northern Papua New Guinea record decreases in sea surface temperature
(SST) and rainfall during El Nino events. Threshold analysis of seven
fossil coral d18O records spanning the period 7.6-5.4 ka (thousand
years ago) shows 8-12 El Nino events/century, significantly less
than the 23 events/century recorded by the NINO3.4 Index. The coral
reconstructions also show a 15% reduction in El Nino event amplitude
for 7.6-5.4 ka, compared to today, which is greater than the
suppression given by model studies. In contrast, large and protracted
El Nino events are identified for 2.5-1.7 ka. Taken together,
the results indicate a nonlinear atmospheric response to Holocene
changes in El Nino SST anomalies. We propose that small changes
in tropical SST gradients, the positioning of the Intertropical
Convergence Zone, and the Pacific tradewind climatology modify
the impact of El Nino events on western Pacific rainfall.
STUDY NOTES: Fossil and modern coral d18O data from Koil Island and Muschu Island,
northern Papua New Guinea, collected from uplifted and living reefs.
Fossil corals were screened for diagenesis using X-ray diffraction.
Eight mid-late Holocene fossil corals were selected for study due to
their well preserved state. Uranium-series ages of these corals were
determined by isotope dilution thermal ionisation mass spectrometry,
with fossil coral initial d234U constrained to 146–150 per mil.
The average error on the uranium-series ages is ±90 yr.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/papau-new-guinea2004.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm21_noaa.txt
Formatted Text File; FM21 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm24_noaa.txt
Formatted Text File; FM24 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-ms01_noaa.txt
Formatted Text File; MS01 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm09_noaa.txt
Formatted Text File; FM09 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm07_noaa.txt
Formatted Text File; FM07 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fk05_noaa.txt
Formatted Text File; FK05 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm22_noaa.txt
Formatted Text File; FM22 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm15_noaa.txt
Formatted Text File; FM15 Data
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/papua_new_guinea/mcgregor2004-fm23_noaa.txt
Formatted Text File; FM23 Data
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11