Publications

13585 to 13596 of 13980 results

1. The climate of the future: clues from three million years ago

   In the eighteenth century, James Hutton came up with a theory that revolutionized the science of geology, ‘The present is a key to the past’. But could the past also […]

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2. Warm worlds

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3. Warmer tropics during the mid-Pliocene? Evidence from alkenone paleothermometry and a fully coupled ocean-atmosphere GCM

   Traditional reconstructions of sea-surface temperatures (SSTs) produced by the Pliocene Research Interpretations and Synoptic Mapping (PRISM) Group indicate that mid-Pliocene surface ocean temperatures were unchanged or slightly cooler than modern […]

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4. Seasonal variations in the horizontal wind structure from 0-100 km above Rothera station, Antarctica (67° S, 68° W)

   A medium frequency spaced-antenna radar has been operating at Rothera station, Antarctica (67° S, 68° W) for two periods, between 1997-1998 and since 2002, measuring winds in the mesosphere and […]

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5. Recruitment of mackerel icefish (Champsocephalus gunnari) at South Georgia indicated by predator diets and its relationship with sea surface temperature

   The South Georgia population of mackerel icefish (Champsocephalus gunnari) is exploited by both a fishery and predators, including gentoo penguins (Pygoscelis papua). Because considerable uncertainty surrounds recent estimates of stock […]

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6. The sedimentary record of the last glaciation in the western Bellingshausen Sea (West Antarctica): Implications for the interpretation of diamictons in a polar-marine setting

   Upper Quaternary marine sediments recovered from the West Antarctic continental margin are characterized by a distinct lithological succession allowing the reconstruction of past environmental changes. Massive, homogenous diamictons were deposited […]

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7. Errors in juvenile copepod growth rate estimates are widespread: problems with the Moult Rate method

   The ‘Moult Rate’ (MR) method has been used widely to derive stage-specific growth rates in juvenile copepods. It is the most common field-based method. Unfortunately, the equation underlying the method […]

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8. A 7000-year record of oribatid mite communities on a maritime-Antarctic island: responses to climate change

   We studied the fossil remains of the common Antarctic oribatid mites, Alaskozetes antarcticus and Halozetes belgicae, in sediment cores from two lakes in adjacent catchments on Signy Island, South Orkney […]

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9. Late Pleistocene record of elevated UV radiation in an Antarctic lake

   Elevated ultraviolet irradiance (UVR, 280–400 nm) damages DNA and induces reorganisation within biological communities at the Earth’s surface. Southern high latitude aquatic ecosystems may be particularly susceptible because of low […]

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10. Ascent exhalations of Antarctic fur seals: a behavioural adaptation for breath-hold diving?

    Novel observations collected from video, acoustic and conductivity sensors showed that Antarctic fur seals consistently exhale during the last 50–85% of ascent from all dives (10–160 m, n>8000 dives from […]

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11. Timescale for radiation belt electron acceleration by whistler mode chorus waves

    Electron acceleration inside the Earth’s magnetosphere is required to explain increases in the ∼MeV radiation belt electron flux during magnetically disturbed periods. Recent studies show that electron acceleration by whistler […]

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12. Wave acceleration of electrons in the Van Allen radiation belts

    The Van Allen radiation belts are two regions encircling the Earth in which energetic charged particles are trapped inside the Earth’s magnetic field. Their properties vary according to solar activity […]

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