Publications

13477 to 13488 of 13906 results

1. On the relationship between surface and basal properties on glaciers, ice sheets, and ice streams

   The influence of basal disturbances on the steady state surface topography and on surface velocities of glaciers and ice sheets is investigated numerically. This is done for finite amplitude basal […]

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2. Trends of halon gases in polar firn air: implications for their emission distributions

   Four halons (H-1301, H-1211, H-2402 and H-1202) have been measured in air samples collected from polar firn from Dome Concordia (Dome C), Antarctica, from Devon Island, Canada and the North […]

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3. Causes of offspring mortality in the Antarctic fur seal, Arctocephalus gazella: the interaction of density dependence and ecosystem variability

   Rates of pup production and causes of pup mortality, recorded in a designated study colony on Bird Island, South Georgia, from 1989 to 2003, were used to evaluate the factors […]

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4. Antarctic ecosystem monitoring: quantifying the response of ecosystem indicators to variability in Antarctic krill

   The utility of upper-trophic-level species as ecosystem indicators is determined by our ability to relate changes in indices of their performance to changes at lower trophic levels. Such relationships were […]

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5. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management

   The mackerel icefish Champsocephalus gunnari Lönnberg is an important component of the ecosystem at South Georgia. Its diet is dominated by Antarctic krill Euphausia superba; in turn, it is also […]

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6. Large-scale biogeographic patterns in marine mollusks: a confluence of history and productivity?

   Large-scale biogeographic patterns in marine systems are considerably less well documented and understood than those in terrestrial systems. Here, we synthesize recent evidence on latitudinal and bathymetric gradients of species […]

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7. Recent ice loss from the Fleming and other glaciers, Wordie Bay, West Antarctic Peninsula

   Satellite radar interferometry data from 1995 to 2004, and airborne ice thickness data from 2002, reveal that the glaciers flowing into former Wordie Ice Shelf, West Antarctic Peninsula, discharge 6.8 […]

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8. NO3 vertical profile measurements from remote sensing balloon-borne spectrometers and comparison with model calculations

   Eleven vertical profiles of stratospheric NO3 have been obtained since 1992 using the AMON and SALOMON balloon-borne UV-visible spectrometers. The measurements are compared to the SLIMCAT 3D model and calculations […]

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9. Supervolcanos

   Teal Riley has been digging around in the geological record to find out more about what causes supervolcanoes to erupt.

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10. Early–Middle Jurassic dolerite dykes from western Dronning Maud Land (Antarctica): identifying mantle sources in the Karoo Large Igneous Province

    A suite of dolerite dykes from the Ahlmannryggen region of western Dronning Maud Land (Antarctica) forms part of the much more extensive Karoo igneous province of southern Africa. The dyke […]

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11. Lightning driven inner radiation belt energy deposition into the atmosphere: regional and global estimates

    In this study we examine energetic electron precipitation fluxes driven by lightning, in order to determine the global distribution of energy deposited into the middle atmosphere. Previous studies using lightning-driven […]

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12. The 2002 split ozone hole – the wave of the century?

    No abstract available for this article.

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