NOAA/WDS Paleoclimatology - Rabaul - Stable Isotope and Sr/Ca Data
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Coral. The data include parameters of corals and sclerosponges with a geographic location of Papua New Guinea, Melanesia. The time period coverage is from 83 to -47 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
- Cite as: Quinn, T.M.; Taylor, F.W.; Crowley, T.J. (2008-07-01): NOAA/WDS Paleoclimatology - Rabaul - Stable Isotope and Sr/Ca Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/487b-cm78. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/487b-cm78
- noaa-coral-6116
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-coral-6116
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Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact
NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 1867 CE to 1997 CE; Date Range: 83 cal yr BP to -47 cal yr BP; |
Time Period | 1867 to 1997 |
Spatial Bounding Box Coordinates |
N: -4.18
S: -4.18
E: 151.98
W: 151.98
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information |
ABSTRACT SUPPLIED BY ORIGINATOR: We have generated monthly resolved, stable isotope (d18O and d13C) and Sr/Ca time series from a massive Porites coral from Rabaul (4�S, 152�E): a site located in the warmest sector of the Western Pacific Warm Pool (WPWP). The coral d18O and Sr/Ca time series are well correlated to each other and positive excursions in both records coincide with times of ENSO warm phase events. These time series contain abundant interannual variability that exhibits the well- recognized pattern of low amplitude ENSO variation between ~1920�1960 and high amplitude ENSO variation between 1880�1920 and 1960�1997. The ENSO-filtered coral d18O and Sr/Ca time series are well matched to each other (r = 0.73) and to similarly filtered coral d18O records from Papua New Guinea (r > 0.56). There is no long-term trend in the coral d18O record, but there is a long-term trend of increasing coral Sr/Ca from 1867 to 1997. This trend in coral Sr/Ca suggests a cooling of ~0.7�C, which is rather unlikely and implies that factors other than SST may be influencing the coral Sr/Ca record. The trend in coral Sr/Ca is not an analytical artifact, nor a product of time varying riverine input, nor a product of skeletal diagenesis, nor the results of kinetic effects, but may reflect surface-water variability in Sr/Ca. Despite the presence of a nonclimatic trend in coral Sr/Ca, the Rabaul coral records contain abundant interannual- to multidecadal- scale variability, much of which is coherent with other proxy records from the WPWP and with instrumental records of ENSO variability.
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Purpose | Records of past climate and ocean environment derived from stable isotope, trace metal, and other measurements made on corals and sclerosponges. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2023-09-01
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