10177 to 10188 of 13838 results
-
-
-
Modelling the impact of fishery by-catches on albatross populations
Read more of: Modelling the impact of fishery by-catches on albatross populationsSummary 1 Several albatross species, including the wandering albatross Diomedea exulans, have shown marked declines in abundance throughout their range. These seabirds are frequently taken as by-catch in longline fisheries […]
-
-
Flow transients in the postnoon ionosphere: The role of solar wind dynamic pressure
Read more of: Flow transients in the postnoon ionosphere: The role of solar wind dynamic pressureSuper Dual Auroral Radar Network (SuperDARN) HF radar, magnetometer, and satellite data are used to study ionospheric convection flow bursts in the sunward return flow in the 1200–1500 MLT auroral […]
-
Solar flare induced ionospheric D-region enhancements from VLF amplitude observations
Read more of: Solar flare induced ionospheric D-region enhancements from VLF amplitude observationsEnhancements of D-region electron densities caused by solar flares are determined from observations of VLF subionospheric amplitude changes and these enhancements are then related to the magnitudes of the X-ray […]
-
Palaeontological studies for CRP-3: introduction
Read more of: Palaeontological studies for CRP-3: introductionThe drillhole at CRP-3 was the deepest of the project and offered early hopes of retrieving a long plalaeontological record. However, the reality was that the fossil content dropped off […]
-
Methyl bromide, other brominated methanes, and methyl iodide in polar firn air
Read more of: Methyl bromide, other brominated methanes, and methyl iodide in polar firn airWe report measurements of brominated, bromochlorinated, and iodinated methanes in air extracted from deep firn at three polar locations (two Antarctic and one Arctic). Using a firn diffusion model, we […]
-
-
Observations on the distribution and relative abundance of the scyphomedusan Chrysaora hysoscella (Linne, 1766) and the hydrozoan Aequorea aequorea (Forskal, 1775) in the northern Benguela ecosystem
Read more of: Observations on the distribution and relative abundance of the scyphomedusan Chrysaora hysoscella (Linne, 1766) and the hydrozoan Aequorea aequorea (Forskal, 1775) in the northern Benguela ecosystemObservations on the abundance of medusae at the surface were conducted in the northern Benguela ecosystem, over the period August 1997–June 1998. The results suggest that Chrysaora hysoscella is found […]
-
-
A quantitative estimate of the ducted whistler power within the outer plasmasphere
Read more of: A quantitative estimate of the ducted whistler power within the outer plasmasphereFrom a statistical study of ductedwhistlers observed at Halley, Antarctica, in 1996, which had propagated on paths in the range L=2.5–4.5, we report mean occurrence rates, numbers of components per […]