Publications

10201 to 10212 of 13838 results

1. 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 […]

   Read more of: Rock debris in an Antarctic ice shelf

2. (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?

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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 […]

   Read more of: Long-term trends in geomagnetic daily variation

10. Remote sensing of the global light-fishing fleet: an analysis of interactions with oceanography, other fisheries and predators

    Read more of: Remote sensing of the global light-fishing fleet: an analysis of interactions with oceanography, other fisheries and predators

11. Managing and forecasting squid fisheries in variable environments

    Squid are short-lived ecological opportunists which generally have a lifespan of about 1 year. Their populations are labile and recruitment variability is driven, to a greater or lesser extent, by […]

    Read more of: Managing and forecasting squid fisheries in variable environments

12. Lower ionospheric modification by lightning-EMP: simulation of the night ionosphere over the United States

    It has recently been suggested that successive intense lightning‐electromagnetic pulse (EMP) events could cause significant large‐scale changes to the properties of the nighttime lower ionosphere. In order to examine this […]

    Read more of: Lower ionospheric modification by lightning-EMP: simulation of the night ionosphere over the United States