5101 to 5112 of 14011 results
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Multispectral digital image mapping of Antarctic ice features
Read more of: Multispectral digital image mapping of Antarctic ice featuresLandsat multispectral images of the Antarctic ice sheet have been digitally enhanced by the US Geological Survey to show ice surface features not seen in earlier photographic products of the […]
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Demonstrating the use of a class of min-max smoothers for D-region event detection in narrowband VLF phase
Read more of: Demonstrating the use of a class of min-max smoothers for D-region event detection in narrowband VLF phaseThis paper describes the use of a class of non‐linear smoothers for the identification of interesting phenomena in narrowband very low frequency (VLF) transmission phase caused by perturbation events in […]
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Decadal-scale progression of Dansgaard-Oeschger warming events
Read more of: Decadal-scale progression of Dansgaard-Oeschger warming eventsDuring the last glacial period, proxy records throughout the Northern Hemisphere document a succession of rapid millennial-scale warming events, called Dansgaard–Oeschger (DO) events. A range of different mechanisms has been […]
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The effect of ozone shadowing on the D region ionosphere during sunrise
Read more of: The effect of ozone shadowing on the D region ionosphere during sunriseDiurnal very low frequency (VLF) sub‐ionospheric radiowave phase measurements show a night‐to‐day transition pattern. During this sunrise transition a phase perturbation, which consist of a phase overshoot followed by a […]
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Happy feet in a hostile world? The future of penguins depends on proactive management of current and expected threats
Read more of: Happy feet in a hostile world? The future of penguins depends on proactive management of current and expected threatsPenguins face a wide range of threats. Most observed population changes have been negative and have happened over the last 60 years. Today, populations of 11 of the 18 penguin […]