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Schröder, Jan F; Kuhnt, Wolfgang; Holbourn, Ann; Beil, Sebastian; Zhang, Peng; Hendrizan, Marfasran; Xu, Jian (2018): Deglacial stable oxygen isotope and SST records from the central Indonesian archipelago. PANGAEA, https://doi.org/10.1594/PANGAEA.894085, Supplement to: Schröder, JF et al. (2018): Deglacial warming and hydroclimate variability in the central Indonesian Archipelago. Paleoceanography and Paleoclimatology, https://doi.org/10.1029/2018PA003323

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Abstract:
We present centennial‐scale records of sea surface temperature and oxygen isotopes from the Celebes Sea, Makassar Strait, Flores Sea and northwestern Banda Sea, which provide new insights into the variability of Indonesian hydroclimate over the past 25 kyr. Deglacial warming was generally gradual with an amplitude of 3‐4°C. Statistical evaluation of the temperature data suggests that the onset of deglacialSST warming in the tropical Indonesian Sea occurred earlier than the global atmospheric CO2 rise. In contrast to previous terrestrial precipitation records, our ice‐volume corrected δ18O of seawater (δ18Osw) does not support widespread aridity in central Indonesia during the last glacial period. While δ18Osw was substantially enriched during Heinrich Stadial 1 (HS1) and the Younger Dryas (YD), δ18Osw values were only ~0.2 ‰ heavier during the Last Glacial Maximum than during the Holocene. Heavier δ18Osw during HS1 and the YD either reflects a decline in precipitation amount and/or increased δ18O of rainfall in central Indonesia, both likely caused by a southward displacement of the tropical rain belt. Comparison of the Celebes Sea, Makassar Strait, Flores Sea and Banda Sea records suggests that rainfall isotope and/or amount changes were comparable over Borneo and Sulawesi during the last termination.
Coverage:
Median Latitude: -2.459364 * Median Longitude: 119.212038 * South-bound Latitude: -6.873400 * West-bound Longitude: 118.114320 * North-bound Latitude: 1.401770 * East-bound Longitude: 122.622300
Date/Time Start: 2011-07-28T23:43:00 * Date/Time End: 2011-08-08T07:22:00
Size:
11 datasets

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Datasets listed in this publication series

  1. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Benthic oxygen isotope ratios of sediment core GIK18519-2. https://doi.org/10.1594/PANGAEA.894074
  2. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Benthic oxygen isotope ratios of sediment core GIK18522-3. https://doi.org/10.1594/PANGAEA.894075
  3. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Benthic oxygen isotope ratios of sediment core GIK18526-3. https://doi.org/10.1594/PANGAEA.894076
  4. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Benthic oxygen isotope ratios of sediment core GIK18540-3. https://doi.org/10.1594/PANGAEA.894077
  5. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): RAMPFIT change point estimates for SST data from sediment core GIK18522-3. https://doi.org/10.1594/PANGAEA.894084
  6. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): RAMPFIT change point estimates for benthic δ¹⁸O data from sediment core GIK18522-3. https://doi.org/10.1594/PANGAEA.894083
  7. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Sea surface temperature and stable oxygen isotope record of sediment core GIK18519-2. https://doi.org/10.1594/PANGAEA.894078
  8. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Sea surface temperature and stable oxygen isotope record of sediment core GIK18522-3. https://doi.org/10.1594/PANGAEA.894079
  9. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Sea surface temperature and stable oxygen isotope record of sediment core GIK18526-3. https://doi.org/10.1594/PANGAEA.894080
  10. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Sea surface temperature and stable oxygen isotope record of sediment core GIK18540-3. https://doi.org/10.1594/PANGAEA.894081
  11. Schröder, JF; Kuhnt, W; Holbourn, A et al. (2018): Sea surface temperature and stable oxygen isotope record of sediment core TGS-931. https://doi.org/10.1594/PANGAEA.894082