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      10 Be/9 Be Ratios Reflect Antarctic Ice Sheet Freshwater Discharge During Pliocene Warming

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          Chemical isolation of quartz for measurement of in-situ -produced cosmogenic nuclides

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            Potential Antarctic Ice Sheet retreat driven by hydrofracturing and ice cliff failure

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              Multidecadal warming of Antarctic waters.

              Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice interactions and has been correlated with Antarctic Continental Shelf Bottom Water (ASBW) temperature. We document the spatial distribution of long-term large-scale trends in temperature, salinity, and core depth over the Antarctic continental shelf and slope. Warming at the seabed in the Bellingshausen and Amundsen seas is linked to increased heat content and to a shoaling of the mid-depth temperature maximum over the continental slope, allowing warmer, saltier water greater access to the shelf in recent years. Regions of ASBW warming are those exhibiting increased ice shelf melt.
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                Author and article information

                Journal
                Paleoceanography and Paleoclimatology
                Paleoceanography and Paleoclimatology
                American Geophysical Union (AGU)
                25724517
                September 2018
                September 2018
                September 03 2018
                : 33
                : 9
                : 934-944
                Affiliations
                [1 ]Earth and Environmental Science Department; University of Pennsylvania; Philadelphia PA USA
                [2 ]Now at The Franklin Institute; Philadelphia PA USA
                [3 ]Geosciences Research Division; Scripps Institute of Oceanography; La Jolla CA USA
                [4 ]Department of Earth and Environmental Studies; Montclair State University; Montclair NJ USA
                [5 ]Now at Department of Mineral Sciences, National Museum of Natural History; Smithsonian Institution; Washington DC USA
                Article
                10.1029/2017PA003283
                13139386-5dd8-4c80-a788-91c0a4e407fc
                © 2018

                http://doi.wiley.com/10.1002/tdm_license_1.1

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                http://onlinelibrary.wiley.com/termsAndConditions#vor

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