Search Results - "Praetorius, Summer"
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North Atlantic circulation slows down
Published in Nature (London) (01-04-2018)“…Evidence suggests that the circulation system of the North Atlantic Ocean is in a weakened state that is unprecedented in the past 1,600 years, but questions…”
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Global and Arctic climate sensitivity enhanced by changes in North Pacific heat flux
Published in Nature communications (07-08-2018)“…Arctic amplification is a consequence of surface albedo, cloud, and temperature feedbacks, as well as poleward oceanic and atmospheric heat transport. However,…”
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Synchronization of North Pacific and Greenland climates preceded abrupt deglacial warming
Published in Science (American Association for the Advancement of Science) (25-07-2014)“…Some proposed mechanisms for transmission of major climate change events between the North Pacific and North Atlantic predict opposing patterns of variations;…”
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4
Flushing of the deep Pacific Ocean and the deglacial rise of atmospheric CO2 concentrations
Published in Nature geoscience (01-10-2018)“…During the last deglaciation (19,000–9,000 years ago), atmospheric CO 2 increased by about 80 ppm. Understanding the mechanisms responsible for this change is…”
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Phasing of millennial-scale climate variability in the Pacific and Atlantic Oceans
Published in Science (American Association for the Advancement of Science) (06-11-2020)“…New radiocarbon and sedimentological results from the Gulf of Alaska document recurrent millennial-scale episodes of reorganized Pacific Ocean ventilation…”
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Past abrupt changes, tipping points and cascading impacts in the Earth system
Published in Nature geoscience (01-08-2021)“…The geological record shows that abrupt changes in the Earth system can occur on timescales short enough to challenge the capacity of human societies to adapt…”
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Ice and ocean constraints on early human migrations into North America along the Pacific coast
Published in Proceedings of the National Academy of Sciences - PNAS (14-02-2023)“…Founding populations of the first Americans likely occupied parts of Beringia during the Last Glacial Maximum (LGM). The timing, pathways, and modes of their…”
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The role of Northeast Pacific meltwater events in deglacial climate change
Published in Science advances (01-02-2020)“…Columbia River megafloods occurred repeatedly during the last deglaciation, but the impacts of this fresh water on Pacific hydrography are largely unknown. To…”
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Episodic reductions in bottom-water currents since the last ice age
Published in Nature geoscience (01-07-2008)“…Past changes in the freshwater balance of the surface North Atlantic Ocean are thought to have influenced the rate of deep-water formation, and consequently…”
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10
The price of grief
Published in Nature (London) (01-09-2018)“…Confronting loss can give rise to difficult career choices, says Summer Praetorius. Confronting loss can give rise to difficult career choices, says Summer…”
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Interaction between climate, volcanism, and isostatic rebound in Southeast Alaska during the last deglaciation
Published in Earth and planetary science letters (15-10-2016)“…Observations of enhanced volcanic frequency during the last deglaciation have led to the hypothesis that ice unloading in glaciated volcanic terrains can…”
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Sea surface temperature across the Subarctic North Pacific and marginal seas through the past 20,000 years: A paleoceanographic synthesis
Published in Quaternary science reviews (15-10-2020)“…Deglacial sea surface conditions in the subarctic North Pacific and marginal seas are the subject of increasing interest in paleoceanography. However, a…”
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Oceanic Variability in the Gulf of Alaska during the Younger Dryas
Published in Quaternary international (16-11-2012)Get full text
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14
Paleoclimate. Synchronization of North Pacific and Greenland climates preceded abrupt deglacial warming
Published in Science (American Association for the Advancement of Science) (25-07-2014)“…Some proposed mechanisms for transmission of major climate change events between the North Pacific and North Atlantic predict opposing patterns of variations;…”
Get full text
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