Publications

8101 to 8112 of 13838 results

1. First mesospheric observations using an imaging Doppler interferometer adaptation of the dynasonde at Halley, Antarctica

   The digital ionospheric sounder, or dynasonde, located at the British Antarctic Survey’s research station at Halley, Antarctica, has recently been operated as an imaging Doppler interferometer (IDI). The implementation of […]

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2. Seabed topography under the southern and western Ronne Ice Shelf, derived from seismic surveys

   Seismic reflection measurements of ice thickness and water-column thickness have been made over the southern and western Ronne Ice Shelf, from which, the seabed elevation has been determined. A 2300 […]

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3. Cenozoic tectonic evolution of the Marguerite Bay area, Antarctic Peninsula, interpreted from geophysical data

   Magnetic, gravity and bathymetric data from Marguerite Bay are used to study the relationships between oceanic and continental tectonic evolution in the arc and fore-arc of the Antarctic Peninsula. The […]

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4. Aeromagnetic anomaly map of the central Antarctic Peninsula

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5. Glaciological and oceanographic evidence of high melt rates beneath Pine Island Glacier, West Antarctica

   Satellite imagery indicates that the floating terminus of Pine Island Glacier has changed little in extent over the past two decades. Data on the velocity and thickness of the glacier […]

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6. Dynasonde observations of Pc1 propagation in the ionosphere

   Ground-based observations of Pc1 geomagnetic pulsations propagating in the ionosphere over Halley (76 °S, 27 °W, L ~ 4.2), Antarctica, have been made. The direction of propagation of the Pc1 […]

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7. Latitudinal variation of quasi-biennial oscillation modulation of the semidiurnal tide in the lower thermosphere

   Perturbations in the geomagnetic field at the Earth’s surface can result from variations in the neutral wind field in the lower thermosphere through dynamo action in the interfused ionospheric E […]

   Read more of: Latitudinal variation of quasi-biennial oscillation modulation of the semidiurnal tide in the lower thermosphere

8. Milk fatty acid signatures indicate both major and minor shifts in the diet of lactating Antarctic fur seals

   Fatty acid signature analysis is based on the principle that unique arrays of fatty acids within groups of organisms can be transferred, largely unaltered, up the marine food chain and […]

   Read more of: Milk fatty acid signatures indicate both major and minor shifts in the diet of lactating Antarctic fur seals

9. Diving behaviour of the grey-headed albatross

   Foraging grey-headed albatrosses spent 86% of the night but only 20% of the day sitting on the sea; most diving activity occurred during daylight. During the broad-guard period of nesting, […]

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10. Prolonged incubation in the Black-browed Albatross Diomedea melanophrisat South Georgia

    Read more of: Prolonged incubation in the Black-browed Albatross Diomedea melanophrisat South Georgia

11. Pliocene-Holocene contourite deposition under the Antarctic Circumpolar Current, western Falkland Trough, south Atlantic Ocean

    The eastward-flowing Antarctic Circumpolar Current (ACC) has influenced sedimentation on the slope and floor of the western Falkland Trough, where the axis of the current is topographically constrained. Deep-water flow […]

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12. Wave heating of He+by electromagnetic ion cyclotron waves in the magnetosphere: Heating near the H+-He+bi-ion resonance frequency

    We investigate the absorption of electromagnetic ion cyclotron (EMIC) wave energy by He+ in the outer magnetosphere and the subsequent perpendicular-heating of He+. Plasma models, based on satellite data, are […]

    Read more of: Wave heating of He+by electromagnetic ion cyclotron waves in the magnetosphere: Heating near the H+-He+bi-ion resonance frequency