A distant look at the cryosphere
1 January, 1985
Ninety nine per cent of all the fresh water on the surface of the Earth is in the form of ice. Observations from space have revealed more about the ice…Our publications
Showing: All publications
Found 14089 items
Profile: Albert Borlase Armitage
1 January, 1985
Albert Armitage was the second in command of both the Jackson-Harmsworth expedition of 1884–1897 and R. F. Scott's British National Antarctic Expedition, 1901–1904. He never led an expedition himself; as…Nocturnal changes in the mean length of a euphausiid population: vertical migration, net avoidance, or experimental error?
1 January, 1985 by Jonathan Watkins
The lengths of 9 421 Antarctic krill, Euphausia superba Dana, from 144 net samples from 4 depth ranges at the same location (north east of South Georgia) were measured over…Closer to a true value for heavy metal concentrations in recent Antarctic snow by improved contamination control
1 January, 1985 by Eric Wolff
Recent snow from two sites in the Antarctic Peninsula has been analyzed for Al, Cd, Cu, Pb and Zn. Measurement of full procedural blanks and of the extent of penetration…The record of global pollution in polar snow and ice
1 January, 1985 by Eric Wolff
Many attempts have been made to trace increases in global pollution from the record of impurities preserved in polar snow and ice layers. Although inadequate sampling and analysis techniques have…Read more on The record of global pollution in polar snow and ice
Photofading retardant for epifluorescence microscopy in soil micro-ecological studies
1 January, 1985
Citifluor, a photofading retardant for epifluorescence studies, was evaluated as a mountant for enhancing algal autofluorescence and Acridine Orange (AO) fluorescence of bacteria and fungi in mineral soils from Antarctic…Read more on Photofading retardant for epifluorescence microscopy in soil micro-ecological studies
Antarctic ecology
1 January, 1984
Seals chapter in BAS Digital ArchiveThermal dependence of contractile properties of single skinned muscle fibres from Antarctic and various warm water marine fishes including Skipjack Tuna (Katsuwonus pelamis) and Kawakawa (Euthynnus affinis)
1 January, 1984
Single fast fibres and small bundles of slow fibres were isolated from the trunk muscles of an Antarctic (Notothenia neglecta) and various warm water marine fishes (Blue Crevally,Carangus melampygus; Grey…The plasma physics of the Active Magnetospheric Particle Tracer Explorers (AMPTE) mission
1 January, 1984
The three-spacecraft AMPTE Mission was due to commence in August 1984. The purpose of these 'active' experiments was firstly to release lithium into the solar wind and to use the…Current, temperature, and salinity beneath George VI Ice Shelf, Antarctica
1 January, 1984
Speed, direction, temperature, and conductivity were recorded from February to July 1980 within the thermocline near the northern ice front of George VI Ice Shelf. There were no significant changes…Read more on Current, temperature, and salinity beneath George VI Ice Shelf, Antarctica
Filtration rates of Euphausia superba Dana: under- or overestimates?
1 January, 1984
Filtration rates of adolescent Euphausia superba obtained by both constant volume and flow-through techniques are presented. Filtration rate data for a range of particle sizes are presented. An increase in…Read more on Filtration rates of Euphausia superba Dana: under- or overestimates?
Feeding of krill around South Georgia. II. Relations between feeding activity, environment and vertical distribution
1 January, 1984 by Peter Ward
Relations between a model of the feeding activ- ity of Euphausia superba, the oceanic environment and the vertical distribution of krill around South Georgia are described. Krill with full alimentary…Oxygen consumption of five species of fish from south Georgia
1 January, 1984
The oxygen consumption rates of five species of sub-Antarctic fish, Notothenia rossii Fischer, 1885; Notothenia angustifrons Fischer, 1885; Notothenia nudifrons Lonnberg, 1905; Trematomus hansom Boulenger, 1902; and Harpagifer georgianus Richardson,…Read more on Oxygen consumption of five species of fish from south Georgia
Cold shock injury in Tetrahymena pyriformis
1 January, 1984 by Andrew Clarke
The ciliated protozoan Tetrahymena pyriformis has been used to study the biochemistry of cellular injury induced by rapid cooling (cold shock). Cellular viability was found to depend on the time…Isotopic tracers in polar seas and glacier ice
1 January, 1984
The relationship between isotope concentration and salinity provides important evidence on the origin of water masses. In polar regions it can be used to deduce the isotopic composition of melting…Scaling of foraging radius and growth rate in petrels and albatrosses (Procellariiformes)
1 January, 1984
Data are assembled from a number of sources on several species of Procellariiformes breeding on South Georgia, covering the amount, frequency and energetic content of feeds brought to the young,…Glaciological and oceanographic calculations of the mass balance and oxygen isotope ratio of a melting ice shelf
1 January, 1984
Glaciological estimates of the ice supply to George VI Ice Shelf are obtained by integrating the accumulation over the catchment. The basal melt (or possible shelf thickening) rates for the…Automated measurement of meal sizes and feeding frequency in albatrosses
1 January, 1984
An artificial nest incorporating an automated weighing device, suitable for chick growth studies on some species of seabirds, is described. (2) The operating weight range is 1-7 kg, with an…Read more on Automated measurement of meal sizes and feeding frequency in albatrosses
Activity budgets of foraging gray-headed albatrosses
1 January, 1984
Activity recorders were attached to 13 Gray-headed Albatrosses (Diomedea chrysostoma) rearing chicks at South Georgia in February 1982. During foraging trips to sea totalling 284 bird-days, an average of 74%…Read more on Activity budgets of foraging gray-headed albatrosses
Electrical resistivity of ice from the Antarctic Peninsula, Antarctica
1 January, 1984
Georesistivity soundings have been carried out at four sites in the Antarctic Peninsula. The objective of the work was to investigate the electrical behaviour of ice from an area where…Read more on Electrical resistivity of ice from the Antarctic Peninsula, Antarctica
Estimation by use of field weighings of metabolic rate and food conversion efficiency in albatross chicks
1 January, 1984
A knowledge of the assimilation of food and of the energetic demands of chicks at different stages in the growth period can provide a basis for understanding growth strategies of…Spread-F ionospheric irregularities and their relationship to stable auroral red arcs at magnetic mid-latitudes
1 January, 1984
The signature of the stable auroral red arc (SAR arc) as it appears on ionograms is described. The key features are a very significant increase in the amount of spread-F…Dawn-dusk (y) component of the interplanetary magnetic field and the local time of the harang discontinuity
1 January, 1984 by Michael Pinnock
We describe a simple method for determining the time at which the meridian of a sub-auroral magnetic observatory crosses that of the Harang discontinuity—the separation of the eastward and westward…Accelerating flow of the Brunt Ice Shelf, Antarctica
1 January, 1984
Position fixes made at the British Antarctic Survey station, Halley, on the Brunt Ice Shelf are considered for the period 1968–82. These show an initial westward velocity of approximately 400…Read more on Accelerating flow of the Brunt Ice Shelf, Antarctica
Beauchêne Island: a historical account
1 January, 1984
Southernmost of the Falkland Islands, Beauchêne Island (52° 54' S, 59° 09' W, area 3 km2) is a wildlife reserve with large colonies of Black-browed albatrosses and Rockhopper penguins. Discovered…An extraordinary peat-forming community on the Falkland Islands
1 January, 1984
Most of Beauchêne Island in the South Atlantic is covered by tussac, the tussock-forming grass Poa flabellata (Lam.) Rasp., which has produced a deep accumulation of exceptionally dense peat during…Read more on An extraordinary peat-forming community on the Falkland Islands
Glacier flexure and the position of grounding lines: measurements By tiltmeter on Rutford Ice Stream, Antarctica
1 January, 1984
Two methods were used to locate the grounding line on the Rutford Ice Stream. The first method determined where the glacier was floating in hydrostatic equilibrium, while the second method…Processes of formation and filling of a Mesozoic back-arc basin on the island of South Georgia
1 January, 1984
South Georgia contains a diverse suite of rocks representing different stages in the development of a back-arc basin on the Gondwana margin during the Mesozoic. Basin formation initially involved intrusion…Ecophysiology of two intertidal mites at South Georgia
1 January, 1984 by William Block
The resistance of Halozetes marinus (Cryptostigmata) and Hyadesia maxima (Astigmata) to cold and heat, to submergence in water and to anoxia was studied to determine their adaptations to the intertidal…Read more on Ecophysiology of two intertidal mites at South Georgia
Excitation of the lower oblique resonance by an artificial plasma jet in the ionosphere
1 January, 1984
Aboard the Porcupine rockets, bursts of noise were detected in the electron whistler range during the operation of a xenon plasma gun on a package ejected from the main payload.…Read more on Excitation of the lower oblique resonance by an artificial plasma jet in the ionosphere