7441 to 7452 of 13722 results
Radar echoes from the upper mesosphere recorded by the dynasonde at Halley (76°S, 27°W), Antarctica, over four years have been studied to reveal the diurnal and seasonal characteristics of echo […]
A SAOZ (System d’Analyse et d’Observations Zenithales) u.v.-visible spectrometer was installed at Faraday, Antarctica, in 1990, with a view to gaining year-round measurements of column ozone. Observations have been validated […]
IN 1985, Farman et al.1 announced that a dramatic reduction in total ozone was occurring in the atmosphere over Halley, Antarctica, during the polar spring. Analysis of satellite data revealed […]
Aeromagnetic anomaly data collected between 67°S and 70°S crossing the Antarctic Peninsula and adjacent offshore areas show a prominent NW-SE trend in the magnetic fabric. Apparent lateral offsets, previously recognized […]
The seawater that comes into contact with the base of a floating ice shelf is modified as a result of the phase changes that occur. Melting is prevalent in the […]
Plasma flow vectors have been derived from data recorded by the Advanced Ionospheric Sounder (operating as a Dynasonde) at Halley, Antarctica (76°, 27°W). Single bulk flow vectors derived from the […]
Seismic reflection surveys were carried out over the Larsen Ice Shelf to examine the extent of the observed sedimentary sequences of the Larsen Basin as suggested by aeromagnetic and gravity […]
The propagation of auroral radio noise at frequencies below the ionospheric electron gyrofrequency (ƒce ≈ 1.4 MHz) at high latitudes is investigated using the HOTRAY ray tracing code. Two mechanisms […]
A PCR-based method of detecting Haemophilus influenzae in cultures inoculated from throat swabs was evaluated using samples from groups of laboratory staff and medical students and then applied to samples […]
Pillow metabasalts and interbedded slates adjacent to the Liquiñe-Ofqui fault zone (LOFZ) of the southern Chilean Andes have been studied using electron-microprobe mineral analysis, major and trace element whole-rock geochemistry […]