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  • 1
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    (Supplementary Table 1) Results of U-Th analysis (2014)
    PANGAEA
    Details
    Publication Date: 2024-01-25
    Keywords: 325-M0031A; 325-M0033A; 325-M0035A; 325-M0036A; 325-M0039A; 325-M0053A; 325-M0057A; Age, dated; Age, dated standard deviation; Date; DRILL; Drilling/drill rig; Event label; Exp325; Great Barrier Reef, Australia; Great Barrier Reef Environmental Changes; Greatship Maya; HYD_01CSite11; HYD_01Csite6; HYD_01CSite6; HYD_01CSite8; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Laboratory; NOG_01BSite2; NOG_01BSite6; Sample code/label; Site; Standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-232/Uranium-238 activity ratio; Thorium-232/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio; Uranium-234/Uranium-238 activity ratio, standard deviation; Uranium-234/Uranium-238 activity ratio (0); Uranium-234/Uranium-238 activity ratio (0), standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 486 data points
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  • 2
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    (Supplementary Table 2) Coral element/Ca and stable isotope data, U-Th ages, and XRD results (2014)
    PANGAEA
    Details
    Publication Date: 2024-01-25
    Keywords: 325-M0031A; 325-M0033A; 325-M0035A; 325-M0036A; 325-M0039A; 325-M0053A; 325-M0057A; Age, dated; Age, dated standard deviation; Aragonite; Comment; DIVER; DRILL; Drilling/drill rig; Event label; Exp325; GBR-1023; GBR-1024; GBR-1108; GBR-206; GBR-219; GBR-307; GBR-318; GBR-537; GBR-947; GBR-954; Great Barrier Reef, Australia; Great Barrier Reef Environmental Changes; Greatship Maya; HYD_01CSite11; HYD_01Csite6; HYD_01CSite6; HYD_01CSite8; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Magnesium/Calcium ratio; NOG_01BSite2; NOG_01BSite6; Number; Papua New Guinea; PNG-21A; PNG-36; PNG-89B; Sample code/label; Sample comment; Sampling by diver; Site; Standard deviation; Strontium/Calcium ratio; δ13C, skeletal carbonate; δ18O, skeletal carbonate
    Type: Dataset
    Format: text/tab-separated-values, 739 data points
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  • 3
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    (Table 1) Age determination of sediment core MD01-2404 (2009)
    PANGAEA
    In:  Supplement to: Chang, Yuan-Pin; Chen, Min-Te; Yokoyama, Yusuke; Matsuzaki, Hiroyuki; Thompson, William G; Kao, Shuh-Ji; Kawahata, Hodaka (2009): Monsoon hydrography and productivity changes in the East China Sea during the past 100,000 years: Okinawa Trough evidence (MD012404). Paleoceanography, 24(3), PA3208, https://doi.org/10.1029/2007PA001577
    Details
    Publication Date: 2024-02-16
    Description: We analyzed the high-resolution foraminifer isotope records, total organic carbon (TOC), and opal content from an Okinawa Trough core MD012404 in order to estimate the monsoon hydrography and productivity changes in the East China Sea (ECS) of the tropical western Pacific over the past 100,000 years. The variability shown in the records on orbital time scales indicates that high TOC intervals coincide with the increases of boreal May-September insolation driven by precession cycles (~21 ka), implying a strong connection to the variations in monsoons. We also observed possibly nearly synchronous, millennial-scale changes of the ECS surface hydrography (mainly driven by salinity changes but also by temperature effects) and productivity coincident with monsoon events in the Hulu/Dongge stalagmite isotope records. We found that increased freshening and high productivity correlate with high monsoon intensity in interstadials. This study suggests that the millennial-scale changes in monsoon hydrography and productivity in the ECS are remarkable and persistent features over the past 100,000 years.
    Keywords: Age, 14C AMS; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; DEPTH, sediment/rock; East China Sea, Pacific Ocean; Giant piston corer; GPC; IMAGES VII - WEPAMA; Isotopic event; Marion Dufresne (1995); MD012404; MD01-2404; MD122
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
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  • 4
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    Great Barrier Reef coral element/Ca and stable isotope data and U-Th ages from IODP Expedition 325 (2014)
    PANGAEA
    In:  Supplement to: Felis, Thomas; McGregor, Helen V; Linsley, Braddock K; Tudhope, Alexander W; Gagan, Michael K; Suzuki, Atsushi; Inoue, Mayuri; Thomas, Alexander L; Esat, Tezer M; Thompson, William G; Tiwari, Manish; Potts, Donald C; Mudelsee, Manfred; Yokoyama, Yusuke; Webster, Jody M (2014): Intensification of the meridional temperature gradient in the Great Barrier Reef following the Last Glacial Maximum. Nature Communications, 5, 4102, https://doi.org/10.1038/ncomms5102
    Details
    Publication Date: 2024-04-20
    Description: Tropical south-western Pacific temperatures are of vital importance to the Great Barrier Reef (GBR), but the role of sea surface temperatures (SSTs) in the growth of the GBR since the Last Glacial Maximum remains largely unknown. Here we present records of Sr/Ca and d18O for Last Glacial Maximum and deglacial corals that show a considerably steeper meridional SST gradient than the present day in the central GBR. We find a 1-2 °C larger temperature decrease between 17° and 20°S about 20,000 to 13,000 years ago. The result is best explained by the northward expansion of cooler subtropical waters due to a weakening of the South Pacific gyre and East Australian Current. Our findings indicate that the GBR experienced substantial meridional temperature change during the last deglaciation, and serve to explain anomalous deglacial drying of northeastern Australia. Overall, the GBR developed through significant SST change and may be more resilient than previously thought.
    Keywords: Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 5
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    Monsoon hydrography and productivity changes in the East China Sea during the past 100,000 years : Okinawa Trough evidence (MD012404) (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 24 (2009): PA3208, doi:10.1029/2007PA001577.
    Description: We analyzed the high-resolution foraminifer isotope records, total organic carbon (TOC), and opal content from an Okinawa Trough core MD012404 in order to estimate the monsoon hydrography and productivity changes in the East China Sea (ECS) of the tropical western Pacific over the past 100,000 years. The variability shown in the records on orbital time scales indicates that high TOC intervals coincide with the increases of boreal May–September insolation driven by precession cycles (∼21 ka), implying a strong connection to the variations in monsoons. We also observed possibly nearly synchronous, millennial-scale changes of the ECS surface hydrography (mainly driven by salinity changes but also by temperature effects) and productivity coincident with monsoon events in the Hulu/Dongge stalagmite isotope records. We found that increased freshening and high productivity correlate with high monsoon intensity in interstadials. This study suggests that the millennial-scale changes in monsoon hydrography and productivity in the ECS are remarkable and persistent features over the past 100,000 years.
    Description: Y.Y.’s work was partly supported by Global Environmental Research Fund (RF-081) and JSPS Kakenhi (21674003).
    Keywords: Monsoon ; Productivity ; Precipitation ; Precession ; Okinawa Trough ; East China Sea
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 6
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    Marine isotope stage 3 sea level fluctuations : data synthesis and new outlook (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Reviews of Geophysics 46 (2008): RG4003, doi:10.1029/2007RG000226.
    Description: To develop a better understanding of the abrupt Dansgaard-Oeschger mode of climate change, it is essential that we establish whether the ice sheets are actively involved, as trigger or amplifier, or whether they merely respond in a passive manner. This requires careful assessment of the fundamental issues of magnitude and phasing of global ice volume fluctuations within marine isotope stage 3 (MIS 3), which to date remain enigmatic. We review recent advances in observational studies pertaining to these key issues and discuss the implications for modeling studies. Our aim is to construct a robust stratigraphic framework for the MIS 3 period regarding sea level variability, using the most up-to-date arguments available by combining insights from both modeling and observational approaches.
    Description: Mark Siddall is supported by a Lamont-Doherty research fellowship. This paper contributes to UK Natural Environment Research Council projects NE/C003152/1, NER/T/S/2002/00453, and NE/ D001773/1. William G. Thompson is supported by grants from the National Science Foundation (OCE-0602383) and the Ocean and Climate Change Institute of Woods Hole Oceanographic Institution. Claire Waelbroeck was supported by EC grant EVK-2000- 00089, by the CNRS, CEA, and IPEV, as well as the IMAGES program.
    Keywords: Sea level ; MIS 3 ; Seesaw ; Dansgaard-Oeschger
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 7
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    A box model test of the freshwater forcing hypothesis of abrupt climate change and the physics governing ocean stability (2011)
    American Geophysical Union
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2010. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 25 (2010): PA4222, doi:10.1029/2010PA001936.
    Description: Observations and an ocean box model are combined in order to test the adequacy of the freshwater forcing hypothesis to explain abrupt climate change given the uncertainties in the parameterization of vertical buoyancy transport in the ocean. The combination is carried out using Bayesian stochastic inversion, which allows us to infer changes in the mass balance of Northern Hemisphere (NH) ice sheets and in the meridional transports of mass and heat in the Atlantic Ocean that would be required to explain Dansgaard-Oeschger Interstadials (DOIs) from 30 to 39 kyr B.P. The mean sea level changes implied by changes in NH ice sheet mass balance agree in amplitude and timing with reconstructions from the geologic record, which gives some support to the freshwater forcing hypothesis. The inversion suggests that the duration of the DOIs should be directly related to the growth of land ice. Our results are unaffected by uncertainties in the representation of vertical buoyancy transport in the ocean. However, the solutions are sensitive to assumptions about physical processes at polar latitudes.
    Description: This material is based upon work supported by the National Science Foundation under grant OCE‐0402363 and Department of Energy grant DE‐FG02‐08ER64619.
    Keywords: Inversion ; MOC ; Abrupt ; Sea level ; Coral ; Mixing
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/postscript
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  • 8
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    Intensification of the meridional temperature gradient in the Great Barrier Reef following the Last Glacial Maximum (2014)
    Nature Publishing Group
    Details
    Publication Date: 2022-05-26
    Description: © The Author(s), 2014. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Nature Communications 5 (2014): 4102, doi:10.1038/ncomms5102.
    Description: Tropical south-western Pacific temperatures are of vital importance to the Great Barrier Reef (GBR), but the role of sea surface temperatures (SSTs) in the growth of the GBR since the Last Glacial Maximum remains largely unknown. Here we present records of Sr/Ca and δ18O for Last Glacial Maximum and deglacial corals that show a considerably steeper meridional SST gradient than the present day in the central GBR. We find a 1–2 °C larger temperature decrease between 17° and 20°S about 20,000 to 13,000 years ago. The result is best explained by the northward expansion of cooler subtropical waters due to a weakening of the South Pacific gyre and East Australian Current. Our findings indicate that the GBR experienced substantial meridional temperature change during the last deglaciation, and serve to explain anomalous deglacial drying of northeastern Australia. Overall, the GBR developed through significant SST change and may be more resilient than previously thought.
    Description: Funding was provided by Deutsche Forschungsgemeinschaft (FE 615/4-1), Australian Research Council (Discovery grant DP1094001), Australia and New Zealand IODP Consortium, Australian Institute of Nuclear Science and Engineering, Natural Environmental Research Council (NE/H014136/1, NE/H014268/1), the Cooperative Research Program of the Center for Advanced Marine Core Research (10B039, 11A013, 11B041), Ministry of Earth Sciences, Govt. of India (with partial support from DST & ISRO-GBP) and Japan Society for the Promotion of Science (JSPS NEXT-GR031).
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 9
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    Coral record of younger dryas chronozone warmth on the Great Barrier Reef (2021)
    American Geophysical Union
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2020. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography and Paleoclimatology 35(12), (2020): e2020PA003962, doi:10.1029/2020PA003962.
    Description: The Great Barrier Reef (GBR) is an internationally recognized and widely studied ecosystem, yet little is known about its sea surface temperature (SST) evolution since the Last Glacial Maximum (LGM) (~20 kyr BP). Here, we present the first paleo‐application of Isopora coral‐derived SST calibrations to a suite of 25 previously published fossil Isopora from the central GBR spanning ~25–11 kyr BP. The resultant multicoral Sr/Ca‐ and δ18O‐derived SST anomaly (SSTA) histories are placed within the context of published relative sea level, reef sequence, and coralgal reef assemblage evolution. Our new calculations indicate SSTs were cooler on average by ~5–5.5°C at Noggin Pass (~17°S) and ~7–8°C at Hydrographer's Passage (~20°S) (Sr/Ca‐derived) during the LGM, in line with previous estimates (Felis et al., 2014, https://doi.org/10.1038/ncomms5102). We focus on contextualizing the Younger Dryas Chronozone (YDC, ~12.9–11.7 kyr BP), whose Southern Hemisphere expression, in particular in Australia, is elusive and poorly constrained. Our record does not indicate cooling during the YDC with near‐modern temperatures reached during this interval on the GBR, supporting an asymmetric hemispheric presentation of this climate event. Building on a previous study (Felis et al., 2014, https://doi.org10.1038/ncomms5102), these fossil Isopora SSTA data from the GBR provide new insights into the deglacial reef response, with near‐modern warming during the YDC, since the LGM.
    Description: This work was funded by National Science Foundation (NSF) award OCE 13‐56948 to B. K. L, with NSF GRFP support DGE‐11‐44155 to L. D. B., and the Australian Research Council (grant no. DP1094001) and ANZIC IODP. Partial support for B. K. L's work on this project also came from the Vetlesen Foundation via a gift to the Lamont‐Doherty Earth Observatory. T. F. received funding from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project number 180346848, through Priority Program 527 “IODP.” A. T. received support from the UK Natural Environment Research Council (NE/H014136/1 and NE/H014268/1). M. T. thanks Ministry of Earth Sciences for support (NCPOR contribution no. J‐84/2020‐21). L. D. B. would also like to thank Kassandra Costa for her input regarding error analysis.
    Description: 2021-06-11
    Keywords: Great Barrier Reef ; coral ; Younger Dryas Chronozone ; sea surface temperature ; Sr/Ca ; Last Glacial Maximum
    Repository Name: Woods Hole Open Access Server
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  • 10
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    Dynamic millennial-scale climate changes in the northwestern Pacific over the past 40,000 years (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-26
    Description: Author Posting. © American Geophysical Union, 2010. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 37 (2010): L23603, doi:10.1029/2010GL045202.
    Description: Ice core records of polar temperatures and greenhouse gases document abrupt millennial-scale oscillations that suggest the reduction or shutdown of thermohaline Circulation (THC) in the North Atlantic Ocean may induce the abrupt cooling in the northern hemisphere. It remains unknown, however, whether the sea surface temperature (SST) is cooling or warming in the Kuroshio of the Northwestern Pacific during the cooling event. Here we present an AMS 14C-dated foraminiferal Mg/Ca SST record from the central Okinawa Trough and document that the SST variations exhibit two steps of warming since 21 ka — at 14.7 ka and 12.8 ka, and a cooling (∼1.5°C) during the interval of the Younger Dryas. By contrast, we observed no SST change or oceanic warming (∼1.5–2°C) during the episodes of Northern Hemisphere cooling between ∼21–40 ka. We therefore suggest that the “Antarctic-like” timing and amplitude of millennial-scale SST variations in the subtropical Northwestern Pacific between 20–40 ka may have been determined by rapid ocean adjustment processes in response to abrupt wind stress and meridional temperature gradient changes in the North Pacific.
    Description: This research was funded by the National Science Council (NSC), Taiwan to M.T.C. (NSC96‐2611‐M‐019‐008 and NSC96‐2611‐M‐019‐009) and C.C.S. (NSC98‐2611‐M002‐006). X.P.L. was supported by the Natural Science Foundation of China (40930844 and 40706006), China’s National Basic Research Priorities Programmer (2005CB422303 and 2007CB411804), 111 Project (B07036), and the Program for New Century Excellent Talents in University (NECT‐07‐0781).
    Keywords: Kuroshio ; Pacific ; Sea surface temperature ; Mg/Ca ; Oxygen isotope ; East Asian monsoon
    Repository Name: Woods Hole Open Access Server
    Type: Article
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