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  1. Ice core - Wikipedia

    • An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper ones, and an ice core contains ice formed over a range of years. Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach … See more

    Structure of ice sheets and cores

    An ice core is a vertical column through a glacier, sampling the layers that formed through an annual cycle of snowfall … See more

    Coring

    Ice cores are collected by cutting around a cylinder of ice in a way that enables it to be brought to the surface. Early cores were often collected with hand augers and they are still used for short holes. A design for ice core au… See more

    Core processing

    With some variation between projects, the following steps must occur between drilling and final storage of the ice core.
    The drill removes an annulus of ice around the core but does not cut under it. A spring-loaded leve… See more

    Ice core data

    Many different kinds of analysis are performed on ice cores, including visual layer counting, tests for electrical conductivity and physical properties, and assays for inclusion of gases, particles, radionuclides, … See more

    History

    In 1841 and 1842, Louis Agassiz drilled holes in the Unteraargletscher in the Alps; these were drilled with iron rods and did not produce cores. The deepest hole achieved was 60 m. On Erich von Drygalski's Antarctic e… See more

    Future plans

    IPICS (International Partnerships in Ice Core Sciences) has produced a series of white papers outlining future challenges and scientific goals for the ice core science community. These include plans to:
    • Retrieve … See more

     
  1. Vertical column through a glacier

    An ice core is a vertical column through a glacier, sampling the layers that formed through an annual cycle of snowfall and melt. [2] As snow accumulates, each layer presses on lower layers, making them denser until they turn into firn.
    en.wikipedia.org/wiki/Ice_core
    en.wikipedia.org/wiki/Ice_core
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  2. Ice core basics - AntarcticGlaciers.org

  3. Core questions: An introduction to ice cores - NASA Science

  4. Interesting reads - Ice Core

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  5. Ice core | Geology, Climate Change & Glaciology

    Learn about ice core, a long cylinder of glacial ice recovered by drilling through glaciers, and how it reveals records of climate change over the last 100,000 years or more. Explore the methods, sites, and data of ice-core research, and the …

  6. About Ice Cores - NSF Ice Core Facility

  7. Ice core may hold answers to mysteries of Earth’s past

    6 days ago · The team, with members from 12 European scientific institutions, drilled and retrieved a 9,186-foot-long (2,800-meter) ice core from the Antarctic ice sheet. The sample extended so deep that ...

  8. Ice Core | National Centers for Environmental …

    Dec 20, 2021 · Search through ice core studies using Investigator, Title, Location Name, Parameters, and Latitude/Longitude Bounds. Launch Ice Core Data Search. Access a free text search of our entire archive. Launch Paleo Data …

  9. What do ice cores reveal about the past? | National …

    Mar 24, 2023 · Ice cores are cylinders of ice drilled from glaciers and ice sheets that preserve evidence of ancient atmospheric conditions, temperatures, and greenhouse gases. Learn how scientists use ice cores to reconstruct past …

  10. Climate at the core: how scientists study ice cores to …

    May 1, 2014 · Learn how scientists study ice cores to uncover clues about past and future climate changes. See how they collect, analyze, and interpret the frozen records of air, dust, ash, and pollution trapped in glacial ice.

  11. Ice Cores Tell the Story of Climate - Center for Science …

    Learn how scientists use ice cores to study past environments and climate change. Find out what information is preserved in the ice, how ice cores are drilled, and what they reveal about Earth's history.