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Showing 1–10 of 10 results
Advanced filters: Author: Ann Holbourn Clear advanced filters

  • The response of the ocean circulation to climate change remains controversial. This study shows that Miocene global warming drove a decrease in carbonate preservation and a shift in overturning from intermediate to deeper waters. Glacial expansion at 13.8 Ma promoted the onset of near-modern Pacific overturning circulation

    • Ann Holbourn
    • Wolfgang Kuhnt
    • Nils Andersen
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-15

  • The response of monsoons to climate change remains uncertain. Here, the authors show that the Australian Summer Monsoon was primarily driven by insolation forcing but exhibited high sensitivity to ice volume and pCO2 after ~0.95 Ma. By contrast, wind-driven winter productivity tracked glacial-interglacial variability over the past 1.6 Myr.

    • Li Gong
    • Ann Holbourn
    • Nils Andersen
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-14

  • The response of the Australian monsoon to deglacial climate change remains largely unknown due to a dearth of high-resolution climate records. Here, the authors reconstruct precipitation variability in four marine sediment cores and show that Australian monsoon variability closely followed Antarctic warming.

    • Wolfgang Kuhnt
    • Ann Holbourn
    • Manfred Mudelsee
    Research
    Nature Communications
    Volume: 6, P: 1-7

  • A detailed reconstruction of the calcium carbonate compensation depth—at which calcium carbonate is dissolved—in the equatorial Pacific Ocean over the past 53 million years shows that it tracks ocean cooling, increasing as the ocean cools.

    • Heiko Pälike
    • Mitchell W. Lyle
    • Richard E. Zeebe
    Research
    Nature
    Volume: 488, P: 609-614

  • How temperatures at different seasons differ in response to different forcings is not well known. Here, the authors reconstruct annual and seasonal sea surface temperatures in the East China Sea and show that they react differently to CO2 and insolation forcing on glacial-interglacial timescales.

    • Kyung Eun Lee
    • Steven C. Clemens
    • Tae Wook Ko
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-13

  • The late Miocene period allows investigation of climate-carbon cycle dynamics on a warmer-than-modern Earth. Here, the authors show that changes in the global carbon cycle drove climate cooling, culminating in ephemeral Northern Hemisphere glaciations and intensification of the Asian winter monsoon from 7 to 5.5 Ma.

    • Ann E. Holbourn
    • Wolfgang Kuhnt
    • Nils Andersen
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-13