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Prediction of the impact of global climate change on marine phytoplankton is fraught with uncertainties. Increasing temperature, enhanced surface stratification, alteration of ocean currents, intensification or weakening of local nutrient upwelling, stimulation of photosynthesis by elevated CO2…
The upwelling of iron-rich Upper Circumpolar Deep Water (UCDW) is thought to be critical for primary production in the Southern Ocean, since iron has been shown to be a limiting factor in what is otherwise a high nutrient region.
Reconstructing and modeling extent and dynamics of ice sheets is crucial in … understanding and predicting the evolution of ice sheets. Key to ice sheet dynamics are ice … streams, which drain most of the ice from the ice sheet interior to the ice shelves, where most of … the ice is lost.
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.
The Antarctic-Arctic Radiation-belt (Dynamic) Deposition-VLF Atmospheric Research Konsortium … (AARDDVARK) provides a network of continuous long-range observations of the lower ionosphere in the … polar regions.
As revealed by the CALIPSO orbiting lidar, the intense firestorms that occurred … in southern Australia during February 2009 injected a significant plume of … smoke particles into the lower stratosphere. Over the following weeks…
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%.
The long-standing mainstay of support for C. T. R. Wilson’s global circuit hypothesis is the similarity … between the diurnal variation of thunderstorm days in universal time and the Carnegie curve of electrical … potential gradient.
We applied a multivariate statistical modelling technique called boosted regression trees to derive relationships between environmental conditions and the distribution of the adult stage of the cyclopoid copepod Oithona similis in the Southern Ocean.
This study presents the first analysis of the energetics … associated with a hybrid cyclone’s transition in the Southern … Hemisphere, Hurricane Catarina (March 2004). Catarina has … earned a place in history as the first documented South … Atlantic hurricane…
Transition mechanisms characterizing changes fromhurricanes tomidlatitude cyclones … and vice-versa (extratropical and tropical transition) have become a topic of increasing … interest…
The association between Southern Hemisphere cyclones and anticyclones and the El Niño–Southern … Oscillation (ENSO), southern annular mode (SAM), Antarctic sea ice extent (SIE), and rainfall in Perth … and Melbourne is explored. Those cities are, respectively…
Cold events (CEs) are an important feature of southern Australian weather. Unseasonably cold conditions … can have a significant impact on Australia’s agricultural industry and other aspects of society. In this study the … bottom 0.4% of maximum temperatures in Melbourne and Perth from the 1958…
Physiological measurements of both stress and … sex hormones are often used to estimate the consequences … of natural or human-induced change in ecological studies of … various animals. DiVerent methods of hormone measurement … exist…
Aim We examined the genetic structure among populations and regions for the … springtails Cryptopygus antarcticus antarcticus and Gomphiocephalus hodgsoni … (Collembola) to identify potential historical refugia and subsequent colonization … routes…
Two major astronomical experiments are underway at the US Amundsen-Scott South … Pole Station. The first is the South Pole Telescope, a 10m sub-millimetre telescope de- … signed to measure primary and secondary anisotropies in the CMBR…
We have characterised a small, high-efficiency diesel generator selected to power remote experiments on the Antarctic … plateau at altitudes of up to 5000 m.
The diversity of parasites found on Nyctiphanes simplex and Nematoscelis difficilis … (Order Euphausiacea) was compared during 10 oceanographic cruises made off both coasts of the … Baja California peninsula, Mexico. We tested the hypothesis that N.