Publications

10309 to 10320 of 13949 results

1. Back to basics: The ozone hole

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2. A tentative chronology for the EPICA Dome Concordia Ice Core

   A tentative age scale (EDC1) for the last 45 kyr is established for the new 788‐m EPICA Dome C ice core using a simple ice flow model. The age of […]

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3. Geomorphological sketch map of the Fossil Bluff area (Alexander Island, Antarctica) mapped from aerial photographs

   A geomorphological sketch map of the Fossil Bluff area, showing the main morphological characteristics was prepared from aerial photographs taken by the British Antarctic Survey in 1995. Landforms and deposits […]

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4. Rock debris in an Antarctic ice shelf

   We have discovered a band of stones and coarse sand in the Ronne Ice Shelf, Antarctica, some 60m above the ice shelf’s base, 40km from its seaward edge and 420km […]

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5. (Poly)phenolic compounds in pollen and spores of antarctic plants as indicators of solar UV-B: a new proxy for the reconstruction of past solar UV-B?

   The morphology, size and characteristics of the pollen of the plant species Antarctic hairgrass (Deschampsia antarctica, Poaceae) and Antarctic pearlwort (Colobanthus quitensis, Caryophyllaceae) are described by scanning electron microscopy and […]

   Read more of: (Poly)phenolic compounds in pollen and spores of antarctic plants as indicators of solar UV-B: a new proxy for the reconstruction of past solar UV-B?

6. Latest Neoproterozoic to Mid-Cambrian age for the main deformation phases of the Transantarctic Mountains: new stratigraphic and isotopic constraints from the Pensacola Mountains, Antarctica

   New isotopic ages and a fresh understanding of stratigraphic relations among siliciclastic strata in the Pensacola Mountains along the northern margin of the East Antarctic craton result in removal of […]

   Read more of: Latest Neoproterozoic to Mid-Cambrian age for the main deformation phases of the Transantarctic Mountains: new stratigraphic and isotopic constraints from the Pensacola Mountains, Antarctica

7. Ozone loss episodes in the free Antarctic troposphere, suggesting a possible climate feedback

   Sudden loss of tropospheric ozone well above the boundary layer was observed on three occasions at two coastal sites in Antarctica in spring 1995. Back trajectories show that the air […]

   Read more of: Ozone loss episodes in the free Antarctic troposphere, suggesting a possible climate feedback

8. Improvements to the accuracy of zenith-sky measurements of total ozone by visible spectrometers II: use of daily air-mass factors

   Ozone at Faraday in Antarctica is measured by a ground-based visible spectrometer. Total ozone is deduced from the slant column measurements by means of calculated air-mass factors (AMFs), which have […]

   Read more of: Improvements to the accuracy of zenith-sky measurements of total ozone by visible spectrometers II: use of daily air-mass factors

9. Improvements to the accuracy of measurements of NO2 by zenith-sky visible spectrometers. II: Errors in zero using a more complete chemical model

   Using a flexible chemical box model with full heterogeneous chemistry, intercepts of chemically modified Langley plots have been computed for the 5 years of zenith-sky NO2 data from Faraday in […]

   Read more of: Improvements to the accuracy of measurements of NO2 by zenith-sky visible spectrometers. II: Errors in zero using a more complete chemical model

10. Increased stratospheric greenhouse gases could delay recovery of the ozone hole and of ozone loss at southern mid-latitudes

    Stratospheric H2O is increasing, and may be responsible for a large part of the observed cooling of the lower stratosphere. Further cooling will lead to more PSCs in the edge […]

    Read more of: Increased stratospheric greenhouse gases could delay recovery of the ozone hole and of ozone loss at southern mid-latitudes

11. The risk of large volcanic eruptions and the impact of this risk on future ozone depletion

    Ozone depletion at mid-latitudes is caused by reactivehalogens from man-made halocarbons. The stratosphericsulphate aerosol which follows large volcaniceruptions enhances (multiplies) this ozone depletion(it has no effect on ozone without halocarbons). […]

    Read more of: The risk of large volcanic eruptions and the impact of this risk on future ozone depletion

12. Long-term trends in geomagnetic daily variation

    Long-term changes in the magnetic environment of the Earth are of interest to those studying climate change. To this end we examine long-term changes in daily variation as derived from […]

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