NOAA/WDS Paleoclimatology - Griffiths et al. 2009 Liang Luar Indonesia Stalagmite d18O 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 Cave. The data include parameters of speleothems with a geographic location of Indonesia. The time period coverage is from 12650 to -52 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Griffiths, M.L.; Drysdale, R.N.; Gagan, M.K.; Zhao, J.-x.; Ayliffe, L.K.; Hellstrom, J.C.; Hantoro, W.S.; Frisia, S.; Feng, Y.-x.; Cartwright, I.; St Pierre, E.; Fischer, M.J.; Suwargadi, B.W. (2009-09-01): NOAA/WDS Paleoclimatology - Griffiths et al. 2009 Liang Luar Indonesia Stalagmite d18O Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/m36w-f623. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/m36w-f623
- noaa-cave-8632
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-cave-8632
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NOAA National Centers for Environmental Information ncei.info@noaa.gov |
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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: -10700 CE to 2002 CE; Date Range: 12650 cal yr BP to -52 cal yr BP; |
Time Period | -10700 to 2002 |
Spatial Bounding Box Coordinates |
West: 120.433
East: 120.433
South: -8.533
North: -8.533
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: Oxygen isotope data from two combined stalagmite records covering the period 12.7 ka to present from Liang Luar cave, Flores, Indonesia. Stalagmite d18O analyses were carried out on a GV2003 continuous-flow isotope ratio mass spectrometer at the University of Newcastle, Australia, and an automated Kiel carbonate preparation device coupled to a Finnigan MAT-251 mass spectrometer at the Research School of Earth Sciences, The Australian National University. 62 Th230/U234 dates were determined using TIMS and multi-collector ICP-MS at the University of Queensland and the University of Melbourne, Australia, respectively (see Suppl. Info in Griffiths et al., 2009). The d18O profile (Table S4 in Griffiths et al., 2009) consists of the spliced d18O records of stalagmites LR06-B1 (~8 year resolution) and LR06-B3 (~70 year resolution). Liang Luar cave, western Flores, Indonesia: 8º32'S, 120º26'E, 550m above sea level ABSTRACT SUPPLIED BY ORIGINATOR: The Australian-Indonesian summer monsoon affects rainfall variability and hence terrestrial productivity in the densely populated tropical Indo-Pacific region. It has been proposed that the main control of summer monsoon precipitation on millennial timescales is local insolation, but unravelling the mechanisms that have influenced monsoon variability and teleconnections has proven difficult, owing to the lack of high-resolution records of past monsoon behaviour. Here we present a precisely dated reconstruction of monsoon rainfall over the past 12,000 years, based on oxygen isotope measurements from two stalagmites collected in southeast Indonesia. We show that the summer monsoon precipitation increased during the Younger Dryas cooling event, when Atlantic meridional overturning circulation was relatively weak. Monsoon precipitation intensified even more rapidly from 11,000 to 7,000 years ago, when the Indonesian continental shelf was flooded by global sea-level rise. We suggest that the intensification during the Younger Dryas cooling was caused by enhanced winter monsoon outflow from Asia and a related southward migration of the intertropical convergence zone. However, the early Holocene intensification of monsoon precipitation was driven by sea-level rise, which increased the supply of moisture to the Indonesian archipelago. |
Purpose | Records of past temperature, precipitation, and other aspects of climate derived from mineral deposits found in caves. 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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Last Modified: 2024-03-06
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For questions about the information on this page, please email: ncei.info@noaa.gov