NOAA/WDS Paleoclimatology - Kupang Bay, Timor Coral d18O and Sr/Ca Data for the 20th Century
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 Jawa Timur, Indonesia. The time period coverage is from 36 to -54 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: Cahyarini, S.Y.; Pfeiffer, M.; Nurhati, I.S.; Aldrian, E.; Dullo, W.-C.; Hetzinger, S. (2015-09-01): NOAA/WDS Paleoclimatology - Kupang Bay, Timor Coral d18O and Sr/Ca Data for the 20th Century. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/5nv5-rx44. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/5nv5-rx44
- noaa-coral-19179
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-coral-19179
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| Distributor | NOAA National Centers for Environmental Information
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| 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: 1914 CE to 2004 CE; Date Range: 36 cal yr BP to -54 cal yr BP; |
| Time Period | 1914 to 2004 |
| Spatial Bounding Box Coordinates |
N: -10.12
S: -10.12
E: 123.31
W: 123.31
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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 |
STUDY NOTES: paleoceanography at the ITF exit passages, reconstruction salinity based on paired coral Sr/Ca & d18O. Provided Keywords: trace element,SST,SSS Porites coral. This file updated 1 March 2019. Additional columns of d18Oseawater and SSS data added.
ABSTRACT SUPPLIED BY ORIGINATOR: The Indonesian Throughflow (ITF), which represents the global ocean circulation connecting the Pacific Warm Pool to the Indian Ocean, strongly influences the Indo-Pacific climate. ITF monitoring since the late 1990s using mooring buoys have provided insights on seasonal and interannual time scales. However, the absence of longer records limits our perspective on its evolution over the past century. Here, we present sea surface temperature (SST) and salinity (SSS) proxy records from Timor Island located at the ITF exit passage via paired coral d18O and Sr/Ca measurements spanning the period 1914–2004. These high resolution proxy based climate data of the last century highlights improvements and cautions when interpreting paleoclimate records of the Indonesian region. If the seasonality of SST and SSS is not perfectly in phase, the application of coral Sr/Ca thermometry improves SST reconstructions compared to estimates based on coral d18O only. Our records also underline the importance of ocean advection besides rainfall on local SSS in the region. Although the El Ni~no/Southern Oscillation (ENSO) causes larger anomalies relative to the Indian Ocean Dipole (IOD), Timor coral-based SST and SSS records robustly correlate with IOD on interannual time scales, whereas ENSO only modifies Timor SST. Similarly, Timor SST and SSS are strongly linked to Indian Ocean decadal-scale variations that appear to lead Timor oceanographic conditions by about 1.6–2 years. Our study sheds new light on the complex signatures of Indo-Pacific climate modes on SST and SSS dynamics of the ITF. |
| 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: 2025-08-22
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