5557 to 5568 of 14064 results
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Comparisons of EISCAT and dynasonde ionospheric measurements: simple to moderately structured plasma densities
Read more of: Comparisons of EISCAT and dynasonde ionospheric measurements: simple to moderately structured plasma densitiesPlasma densities obtained from EISCAT’s UHF incoherent scatter system are compared with profiles inverted from the digital ionograms of a co-located dynasonde. Excellent agreement is found for the bottomside ionosphere […]
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A large-scale ionospheric depletion by intense radio wave heating
Read more of: A large-scale ionospheric depletion by intense radio wave heatingA large (100 km N/S), stable, smoothly‐structured and significant depletion (15% in number density) of the daytime Tromsø F‐region was produced inadvertently during a Heater polarisation and beam‐forming procedure. We […]
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The Location of Impurities in Antarctic Ice
Read more of: The Location of Impurities in Antarctic IceAnalysis of an ice sample with an estimated age of 125 years, from the Antarctic Peninsula, using a scanning electron microscope with a cold stage and an X-ray micro-analysis facility, […]
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Concentrations of Cadmium, Copper, Lead and Zinc in Snow from Near Dye 3 in South Greenland
Read more of: Concentrations of Cadmium, Copper, Lead and Zinc in Snow from Near Dye 3 in South GreenlandClean sampling and analysis procedures have been used to measure the concentrations of Al and four heavy metals in snow representing one year’s accumulation (1983-84) near Dye 3 in Greenland. […]
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The generation and propagation of atmospheric gravity waves observed during the Worldwide Atmospheric Gravity-wave Study (WAGS)
Read more of: The generation and propagation of atmospheric gravity waves observed during the Worldwide Atmospheric Gravity-wave Study (WAGS)During the Worldwide Atmospheric Gravity-wave Study (WAGS) in October 1985, the EISCAT incoherent scatter radar was used to observe the generation of atmospheric gravity waves in the auroral zone in […]
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Syn-depositional deformation in a Cretaceous succession, James Ross Island, Antarctica. Evidence from vitrinite reflectivity
Read more of: Syn-depositional deformation in a Cretaceous succession, James Ross Island, Antarctica. Evidence from vitrinite reflectivityA detailed vitrinite reflectivity study has been made through the Cretaceous sedimentary rocks of northwest James Ross Island, Antarctica. The results show that a progressive increase in reflectivity does not […]
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