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The Mansurov effect, which for the Southern Hemisphere consists of a positive … association between the By component (east-west) of the interplanetary magnetic field … (IMF) and the ground-level pressure for stations poleward of 80 magnetic latitude, is … confirmed for Vostok (78.5S, 106.
Clean sediment collected from O’Brien Bay, East Antarctica, was artificially contaminated with a mix of Special Antarctic Blend diesel fuel and lubricating oil and deployed in two uncontaminated locations (O’Brien and Sparkes Bays) and a previously contaminated bay (Brown Bay)…
ABSTRACT: Collisions with vessels are a well-documented conservation problem for some populations of large whales (LW) in the Northern Hemisphere. Less attention has been given to incidents in the Southern Hemisphere or to small cetaceans … (SC) worldwide…
Length-at-age data for Patagonian toothfi sh (Dissostichus eleginoides) at Heard Island … (Division 58.5.2) were fi tted using a von Bertalanffy (VB) growth model taking into … account response-biased sampling of fi sh that were aged. Subsampling of random lengthfrequency … (LF)…
Two small-scale Antarctic marine ecosystem surveys were conducted offshore from the Mawson coast ð61266EÞ, in the austral … summers of January 2001 and 2003.
Abundance and grazing impacts of krill, salps and herbivorous copepods were investigated in … Antarctic waters along the 1408E meridian, south of Australia, during the summers of 2002 and 2003. North of the Southern Boundary of the Antarctic Circumpolar Current (SB-ACC)…
Reports of a variety of short-term meteorological responses to changes in the global electric circuit associated with a set of disparate … inputs are analyzed. The meteorological responses consist of changes in cloud cover, atmospheric temperature, pressure, or dynamics.
The event that occurred approximately 8200 years ago is the largest excursion in climate since the beginning of the Holocene. In this event we observe the climatic response to a perturbation which provides a probe with which to investigate the stability of interglacial climate.
The galactic cosmic ray (GCR) intensity often shows a dramatic variation responding to the arrival of interplanetary disturbances at the Earth. Aiming to observe such a variation with muon detectors…
The operating principle of atmospheric Rayleigh LIDAR (light … detection and ranging) systems is that the range-corrected return backscatter … signal is directly related to atmospheric density.
[1] The relationship between the production of dimethylsulfide (DMS) in the upper … ocean and atmospheric sulfate aerosols has been confirmed through local shipboard … measurements, and global modeling studies alike.
The Mansurov effect, which for the Northern Hemisphere consists of a negative association … between the By component (east-west) of the Interplanetary Magnetic Field (IMF)…
Spatial Data Infrastructures (SDIs) have been developing in some countries for over 10 years but still suffer from … having a relatively small installed base. Most SDIs will soon converge around a service-oriented-architecture (SOA)…
Antarctic coastal polynyas are important areas of high sea ice production and dense water … formation, and thus their detection including an estimate of thin ice thickness is essential.
Sea ice observations are difficult to obtain in sufficient temporal and spatial resolution. Several observational techniques have been used to build a sea ice record of ice … concentration, ice extent, and ice thickness among other things. Satellite measurements are … varied in their capabilities…
The Cryosphere and Climate Project (CliC) c~-ordinates climate activities related to all … parts of the earth's cryosphere. This includes sea ice, snow, ice shelves, ice bergs, lake ice, and permafrost. This talk will give a brief overview of the CliC project…
Natural attenuation of petroleum hydrocarbons in polar and subpolar soils is limited by low nutrients, low temperatures, and … water availability.
The leopard seal is a top-order predator in … the Southern Ocean ecosystem and preys on a wide … variety of vertebrate species including seals and penguins. We assessed the use of hairs found in leopard … seal scats to identify the species of pinniped consumed.
In this study, we measure the silicon-isotopic composition d29Si,%, relative to NBS28 … quartz standard) of dissolved silicon and biogenic silica collected by sequential melting … from spring Antarctic pack ice collected near 117E-64.5S.
The field of ultra-low frequency (ULF) wave research is an important piece in … the jigsaw of the dynamics of the Earth's magnetospheric system. These waves are … recognized through their interactions with particles and fields, and energy transfer … processes.
Sea-ice velocities derived from remotely sensed microwave imagery of the Special Sensor … Microwave/Imager (SSM/I) have been analyzed for changes over time in Antarctic sea-ice velocity, for … the period 1988–2004.
Patterns of fishing ground selection were characterised using STATLANT and CCAMLR … fine-scale data. Among the 15 small-scale management units (SSMUs) within Subareas … 48.1, 48.2 and 48.3, including the pelagic SSMUs, only one-third were identified as major … contributors to the total catch.
We present Rayleigh lidar observations of polar stratospheric clouds (PSC) from … Davis Station (68.6S, 78.0E), Antarctica, from the 2001, 2002, 2003, and 2004 austral … winter seasons. The PSC are detected as enhanced backscatter returns at lower … stratospheric heights.
The microscopic anatomy of the cardio-respiratory system, digestive system, kidney, lymphatic system and integument … was investigated in the leopard seal, Hydrurga leptonyx … , by examining histological sections of tissues … collected from leopard seals in Antarctica and New South Wales, Australia.