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Snow on Antarctic sea ice plays a complex and highly variable role in air-sea-ice interaction processes and the Earth's climate system. Using data collected mostly during the past 10 years, this paper reviews the following topics:
Antarctic and Southern Ocean science is vital to understanding natural variability, the processes that govern global change and the role of humans in the Earth and climate system. The potential for new knowledge to be gained from future Antarctic science is substantial. Therefore…
Blue whale populations each produce distinctive repeated songs that are stable over periods of decades, and can be used to identify where each population resides and moves. In the Southern Hemisphere and northern Indian Ocean, there are at least seven distinct populations based on their songs…
Gases released by human activity (greenhouse and ozone depleting gases) are responsible for global change. They are long-lived and well-mixed in the atmosphere. The Antarctic regions, remote from industrial and land plant activity are ideally located to measure global changes in the gases.
Oceanographic instruments suspended beneath the Amery Ice Shelf, East Antarctica, have recorded sporadic pressure decreases of 10–20 dbar over a few days at three sites where basal marine ice growth is expected.
Geisz et al. report an unexpected consequence of climate … change, implicating glacier meltwater as a source for DDT … in coastal Antarctic seas (1). Hypothetically, glaciers may … act as secondary sources for DDT and there may be a link … to climate change. However, their data are sparse, variable…
The Amery Ice Shelf, East Antarctica, undergoes high basal melt rates near the southern … limit of its grounding line where 80% of the ice melts within 240km of becoming afloat. A considerable … portion of this later refreezes downstream as marine ice.
Determining the mass balance of the Greenland and Antarctic ice sheets (GIS and AIS) has long … been a major challenge for polar science. But until recent advances in measurement technology…
During austral spring 2003, mesoscale sea ice drift and deformation off East … Antarctica were investigated using in situ data from a nine-buoy array. Upon deployment, the array comprised an area of about 4000 km2 with a mean ice concentration of 96%.
Australia and New Zealand have interests in, and some responsibilities for, a vast area of the Southern Ocean and the Antarctic continent to our south. These regions are integral components of the Earth system, directly coupled to the climate system, global sea level, biogeochemical cycles…
Preliminary results are presented from the first validation of geophysical data products (ice concentration, snow thickness on sea ice (hs) and ice temperature (TI ) from the NASA EOS Aqua AMSRE sensor, in East Antarctica (in September–October 2003).