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The phase lag between atmospheric composition (air bubbles) and temperature (water isotopes) can be quantified from ice cores provided that the age difference between entrapped air and the surrounding air can be correctly estimated. This difference depends on the lock-in depth (LID)…
Over recent decades, Antarctic plants have been exposed to the … largest relative increase in UV-B exposure as a result of ozone … depletion. Open-sided plexiglass screens were used to reduce UV … levels by 77% over turves of the endemic Antarctic bryophyte, Grimmia antarctici…
We present a map of the distribution of marine ice accreted to the base of the Amery Ice Shelf (AIS), East Antarctica. This map is derived by converting a Digital Elevation Model (DEM) of the AIS generated from satellite radar altimeter data to an ice thickness map, assuming hydrostatic equilibrium…
Natural variability in surface reflectance was studied in 3 species of moss (Grimmia antarctici, Bryum pseudotriquetrum and Ceratodon purpureus) in continental Antarctica. The moss community is well developed in Wilkes Land, eastern Antarctica…
Bryophytes (mosses and liverworts) are sensitive indicators of environmental change and with climate change expected to occur first at high latitudes, Antarctic bryophytes are ideal study systems for the detection of climate change effects.
As well as determining the amount of solar radiation available for photosynthesis, the surface reflectance and absorptance characteristics of plants are their first defence against damaging effects of solar radiation. The solar spectrum can be damaging to plants in many ways. At shorter wavelengths…
Bryophytes are sensitive indicators of environmental change and with climate change being expected to occur first at high latitudes, Antarctic bryophytes are ideal study systems for the detection of climate change effects.
The 500 km wide swath of the right-looking ERS Wind scatterometer and the orbital geometry allows measurement of the microwave backscatter of all the Antarctic region between latitudes 55°S and 80°S each three days.