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Showing 1–11 of 11 results
Advanced filters: Author: Leigh A. Stearns Clear advanced filters

  • Submarine melting has been suggested as a trigger for the widespread acceleration of tidewater glaciers in Greenland. An analysis of oceanographic data from the fjord off Helheim Glacier, Greenland, suggests the presence of light Arctic and dense Atlantic waters in the fjord and that the melting circulation is more complex than thought.

    • Fiammetta Straneo
    • Ruth G. Curry
    • Leigh A. Stearns
    Research
    Nature Geoscience
    Volume: 4, P: 322-327

  • Greenland’s ice loss depends on propagation of mass loss from the marine glacier termini to the interior. An analysis of surface elevation change in 16 glacier catchments shows that the up-glacier extent of thinning is limited by glacier geometry.

    • Denis Felikson
    • Timothy C. Bartholomaus
    • Jonathan D. Nash
    Research
    Nature Geoscience
    Volume: 10, P: 366-369

  • The Greenland ice sheet is a large contributor to sea-level rise primarily because of the increased speed of its glaciers in the southeast and northwest. This study looks at a previously stable ice stream in northeast Greenland, and finds that it is thinning due to regional warming. This region drains 16% of the ice sheet but has not figured in model projections of sea-level rise, indicating an under-estimation of Greenland contributions.

    • Shfaqat A. Khan
    • Kurt H. Kjær
    • Ioana S. Muresan
    Research
    Nature Climate Change
    Volume: 4, P: 292-299

  • Large ice streams and outlet glaciers drain Greenland and Antarctica. An observed acceleration of ice velocity in one of these outlet glaciers, Byrd Glacier, East Antarctica coincides with a large water discharge from two subglacial lakes, allowing direct attribution of the change in glacier dynamics to the water drainage network beneath the ice.

    • Leigh A. Stearns
    • Benjamin E. Smith
    • Gordon S. Hamilton
    Research
    Nature Geoscience
    Volume: 1, P: 827-831

  • Mélange is reported to be thinner in summer during glacier terminus retreat and thicker in winter during terminus advance. A discrete element model is created to estimate the forces that mélange exerts to buttress Greenland glaciers.

    • Yue Meng
    • Ching-Yao Lai
    • Kavinda Nissanka
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-16

  • The recent rapid increase in mass loss from the Greenland ice sheet is primarily attributed to an acceleration of outlet glaciers. Oceanographic data obtained in summer 2008 show that subtropical waters that reside year-round in the shelf ocean off Greenland continuously enter a large glacial fjord in East Greenland and contribute to melting at the glacier terminus.

    • Fiammetta Straneo
    • Gordon S. Hamilton
    • Aqqalu Rosing-Asvid
    Research
    Nature Geoscience
    Volume: 3, P: 182-186

  • The East Antarctic ice sheet was larger than present during past cold periods. Seafloor geophysical data show that in the Ross Sea, the extended ice sheet was underlain by an active hydrologic system during the glacial termination.

    • Lauren M. Simkins
    • John B. Anderson
    • Robert M. DeConto
    Research
    Nature Geoscience
    Volume: 10, P: 691-697

  • Small icebergs comprise a significant fraction of icebergs in Greenland fjords and have fallen below the detection and resolution limit of earlier satellite data, suggest analyses of high-resolution imagery with deep neural networks.

    • Soroush Rezvanbehbahani
    • Leigh A. Stearns
    • C. J. van der Veen
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 1, P: 1-7

  • Discovery of causal variants for monogenic disorders has been facilitated by whole exome and genome sequencing, but does not provide a diagnosis for all patients. Here, the authors propose a Full Spectrum of Intolerance to Loss-of-Function (FUSIL) categorization that integrates gene essentiality information to aid disease gene discovery.

    • Pilar Cacheiro
    • Violeta Muñoz-Fuentes
    • Coleen Kane
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-16