| Data from the GRIP ice core from Greenland show that this cold period was not uniformly cold and 24 interstadials are recognized. |
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| For glaciologists, examining an ice core extracted from the depths of a glacier is like reading the table of contents of a history book. |
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| You can even compare this with tree ring records and coral records and there's the Greenland ice core records that we can also compare with and they all agree very well. |
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| The icicle fades into a group of scientists recovering an ice core and analysing it in a laboratory. |
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| They'll be displayed in a freezer with this huge ice core pole I've been lent by the British Antarctic Survey. |
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| The new ice core analysis, published in the journal Nature Geoscience, suggests the news is less than encouraging. |
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| The evidence comes from a 364m ice core containing a record of freezing and melting over the previous millennium. |
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| To ease the ice core entry, one end of the insert had to be slightly enlarged. |
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| Where the temperature is low enough that the ice core of these large gaseous planets can be formed. |
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| For more information and results of ice core studies, please see the ERCC activity Ice-core based studies of climate and atmospheric changes. |
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| Pushing an ice core with the end cap, so that the insert can be pulled out and capped. |
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| A capped insert containing an ice core is being retrieved from the titanium inner barrel. |
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| The cap in the handler's left hand is used to cap the insert containing the newly drilled ice core. |
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| Once retrieved from the titanium barrel, both ends of the ice core tube were immediately covered with pre-cleaned polyethylene covers. |
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| To get up close and personal with an ice core drill, go to CS drill photo details. |
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| Map showing the locations of ice core samples collected in Greenland and Ellesmere Island. |
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| It will be reassembled in the spring and the hole finished off and the ice core recovered. |
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| In 1974 he turned to Mount Logan as a promising ice core site for paleo-environmental studies. |
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| With a simple light table and an ice core, Dr. Koerner can also see how summer temperatures have shifted over time on an individual ice cap. |
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| Similarly, I've got the Vostok ice core temperature record heading your way soon. |
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| Since this is an ice core record that frequency is for the location of Summit only. |
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| In 2008, researchers drilled an ice core from James Ross Island, off the northeastern tip of the Antarctic Peninsula. |
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| Using an ice core drilled on Mt. Oxford, this research will supply crucial information for the development of a long-term record of the climate and atmospheric chemistry on Ellesmere. |
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| An ice core may look simply like an uninteresting tube of solid ice. |
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| This chart was the result of tree ring records, coral ice core data and historical records, which were used to determine temperatures over the past 6 centuries. |
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| An ice core is a sample of the ice from the surface to the water line. |
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| An ice core is a core sample of ice removed from a glacier, most commonly from the polar ice caps of Antarctica, Greenland or from high mountain glaciers elsewhere. |
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| Some changes, like the large 100,000-year glacial-interglacial swings detected in polar ice core data and ocean sediments, appear to be caused by cyclic variations in the Earth's orbit around the Sun. |
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| Historical concentrations of carbon dioxide, methane, and nitrous oxides are determined for past millennia based on study methods such as ice core analysis. |
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| These results taken in conjunction with the ice core records have allowed us to trace the timing and amount of human induced climate and atmospheric pollution. |
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| More recent ice core samples of today's glacial ice substantiated the cycles through studies of ancient pollen deposition. |
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| Mount Logan ice core site and the dominant Aleutian Low Pressure System. |
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| Despite the difficulties, analysis of ice core and ocean sediment cores has shown periods of glacials and interglacials over the past few million years. |
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