12169 to 12180 of 13980 results
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Excitation of electron cyclotron harmonic waves in the inner Saturn magnetosphere within local plasma injections
Read more of: Excitation of electron cyclotron harmonic waves in the inner Saturn magnetosphere within local plasma injectionsStrong electron cyclotron harmonic (ECH) waves have been observed by Cassini associated with local plasma injection regions in the Saturnian magnetosphere. Using measured electron distributions from the Cassini plasma spectrometer, […]
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Searching for the oldest ice
Read more of: Searching for the oldest iceIt is generally accepted that variations in the precession and eccentricity of Earth’s orbit, and Earth’s axial tilt, influence long-term climate fluctuations; the combined variations are referred to as Milankovitch […]
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Differential gene expression during the moult cycle of Antarctic krill (Euphausia superba)
Read more of: Differential gene expression during the moult cycle of Antarctic krill (Euphausia superba)Background: All crustaceans periodically moult to renew their exoskeleton. In krill this involves partial digestion and resorption of the old exoskeleton and synthesis of new cuticle. Molecular events that underlie […]
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Wave-particle interactions in the equatorial source region of whistler-mode emissions
Read more of: Wave-particle interactions in the equatorial source region of whistler-mode emissionsWave-particle interactions can play a key role in the process of transfer of energy between different electron populations in the outer Van Allen radiation belt. We present a case study […]
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Contrasting the efficiency of radiation belt losses caused by ducted and nonducted whistler-mode waves from ground-based transmitters
Read more of: Contrasting the efficiency of radiation belt losses caused by ducted and nonducted whistler-mode waves from ground-based transmittersIt has long been recognized that whistler-mode waves can be trapped in plasmaspheric whistler ducts which guide the waves. For nonguided cases these waves are said to be “nonducted”, which […]
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Central place foraging by breeding Cook’s petrel Pterodroma cookii: foraging duration reflects range, diet and chick meal mass
Read more of: Central place foraging by breeding Cook’s petrel Pterodroma cookii: foraging duration reflects range, diet and chick meal massPelagic seabirds are central place foragers during breeding and variation in foraging trip duration and range reflect differences in diet and chick provisioning, through the exploitation of divergent habitats of […]
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Seasonal interactions in the black-legged kittiwake, Rissa tridactyla: links between breeding performance and winter distribution
Read more of: Seasonal interactions in the black-legged kittiwake, Rissa tridactyla: links between breeding performance and winter distributionRelationships between events in one period of the annual cycle and behaviour in subsequent seasons are key determinants of individual life histories and population dynamics. However, studying such associations is […]
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Understanding ice-sheet mass balance: progress in satellite altimetry and gravimetry
Read more of: Understanding ice-sheet mass balance: progress in satellite altimetry and gravimetrySatellite remote sensing has come to dominate the measurement of glacier and ice-sheet change. Three independent methods now exist for assessing ice-sheet mass balance and we focus on progress in […]
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Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea ice
Read more of: Frost flowers in the laboratory: Growth, characteristics, aerosol, and the underlying sea iceIn the laboratory, we have investigated the growth and composition of frost flowers. Their ionic composition has shown little difference from those of field measurements. Young frost flowers grown on […]