9169 to 9180 of 13722 results
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Regular patterns in frictional resistance of ice-stream beds seen by surface data inversion
Read more of: Regular patterns in frictional resistance of ice-stream beds seen by surface data inversionFast-flowing glaciers and ice streams are pathways for ice discharge from the interior of the Antarctic Ice Sheet to ice shelves, at rates controlled by conditions at the ice-bed interface. […]
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VLF scattering from red sprites: Vertical columns of ionization in the Earth-ionosphere waveguide
Read more of: VLF scattering from red sprites: Vertical columns of ionization in the Earth-ionosphere waveguideRed sprites were discovered by chance in 1989 when a low-light TV system was pointed above an active thunderstorm. Optically, they are observed as clusters of short-lived (∼50 ms) pinkish-red […]
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Magnetospheric line radiation observations at Halley, Antarctica
Read more of: Magnetospheric line radiation observations at Halley, AntarcticaMagnetospheric line Radiation (MLR) events are relatively narrowband VLF signals that sometimes drift in frequency, and have been observed in both ground based and satellite data sets. Line radiation has […]
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Modeling of subionospheric VLF signal perturbations associated with earthquakes
Read more of: Modeling of subionospheric VLF signal perturbations associated with earthquakesIt has been reported that propagation of very low frequency (VLF) waves in the Earthionosphere waveguide might provide an indication of imminent earthquakes [Hayakawa et al., 1996; Molchanov et al., […]
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VLF scattering from red sprites: Application of numerical modeling
Read more of: VLF scattering from red sprites: Application of numerical modelingRed sprites were discovered by chance in 1989 when a low-light TV system was pointed above an active thunderstorm. Red sprites are associated with columns of ionization in the Earth-ionosphere […]
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Red sprites, upward lightning, and VLF perturbations
Read more of: Red sprites, upward lightning, and VLF perturbationsIn the last decade there has been a great deal of interest in the detection and understanding of phenomena occurring above active thunderstorms. The discovery of the optical phenomena now […]
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Riometer and HF radar signatures of polar patches
Read more of: Riometer and HF radar signatures of polar patchesPolar patch was the name given originally to a spatially limited enhancement of the 630-nm emission observed in the dark polar cap. More recently, the term has been applied to […]
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Microbial dynamics in coastal waters of East Antarctica:plankton production and respiration
Read more of: Microbial dynamics in coastal waters of East Antarctica:plankton production and respirationThe rates of plankton community production and respiration were determined from in vitro changes in dissolved inorganic carbon and dissolved oxygen and the incorporation of (NaHCO3)-C-14 at a coastal site […]
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Experimental and theoretical fracture mechanics applied to Antarctic ice fracture and surface crevassing
Read more of: Experimental and theoretical fracture mechanics applied to Antarctic ice fracture and surface crevassingRecent disintegration of ice shelves on the Antarctic Peninsula has highlighted the need for a better understanding of ice shelf fracture processes generally. In this paper we present a fracture […]
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Large volume silicic volcanism along the proto-Pacific margin of Gondwana: lithological and stratigraphical investigations from the Antarctic Peninsula
Read more of: Large volume silicic volcanism along the proto-Pacific margin of Gondwana: lithological and stratigraphical investigations from the Antarctic PeninsulaJurassic magmatism in western Gondwana produced the most voluminous episode of continental volcanism in the Phanerozoic era. During the Early to Middle Jurassic, some 2.5–3 million km3 of dominantly basalt, […]