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Results 3726 to 3750 of 13317
Abstract. The annual formation and loss of some 15 million km2 of sea ice around the Antarctic significantly affects … global ocean circulation, particularly through the formation of dense bottom water.As one of the most profound seasonal … changes on Earth…
The mesosphere region, which lies at the edge of space, contains the coldest … layer of the Earth’s atmosphere, with summer temperatures as low as minus … 130 ◦C.
Domain and purposive ontologies provide explicit and formal definitions of real-world concepts. They are indispensable components of any system whose objective is to support the exchange and semantic integration of data and information.
Glacier retreat has been widespread on Heard Island, an isolated 2745-m-high … volcano in the southern Indian Ocean, since the first observations in 1947. This study … represents the first quantification of the mass loss of a Heard Island glacier. Brown … Glacier is 4.
A series of nutrient-amended microcosms was used to investigate changing microbial communities during biodegradation in … hydrocarbon-contaminated Antarctic soils at 4, 10 and 42 °C. Although sample heterogeneity resulted in no statistically significant … reduction in total petroleum hydrocarbons…
In this investigation different sorbent materials (MYCELX coated sand, granular activated carbon (GAC) and surfactantmodifed … zeolite (SMZ)) were tested for their suitability for capture of sparingly soluble hydrocarbons in soil water.
Controlled Release Nutrient sources assist in the bioremediation of hydrocarbon spills by stimulating microbial activity. However, freeze–thaw activity might result in splitting of fertilizer pellets with the uncontrolled release of nutrients. We examined … the role of freeze…
Repeated exposure to human activity can change the behavioural response of wildlife, having … implications for management.Weddell seals (Leptonychotes weddellii) breeding close to Antarctic research … stations are easily accessible and regularly visited by people.
We sequenced the mitochondrial (mt) DNA cytochrome c oxidase subunit I gene to examine comparative phylogeographic patterns … for the springtail Gomphiocephalus hodgsoni and the mite Stereotydeus mollis throughout their ranges in southern Victoria Land, Antarctica.
An assessment of the glaciological and meteorological characteristics of Dome A, the … summit of the East Antarctic ice sheet, is made based on field investigations during the austral summer of … 2004/05.