Increased magnetic storm activity from 1868 to 1995
The aa index provides the longest continuous data set which can be used in the analysis of magnetospheric and ionospheric phenomenology. All phases of the solar cycle show increases in […]
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Read more of: Increased magnetic storm activity from 1868 to 1995
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A simple avalanche model as an analogue for magnetospheric activity
Read more of: A simple avalanche model as an analogue for magnetospheric activityThe power law dependence of the power spectrum of auroral indices, and in-situ magnetic field observations in the earth’s geotail, may be evidence that the coupled solar wind-magnetospheric system exhibits […]
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Early Cretaceous fern foliage from President Head, Snow Island, Antarctica
Read more of: Early Cretaceous fern foliage from President Head, Snow Island, AntarcticaFertile fern foliage described as Lophosoria cupulatus sp. nov. contains the distinctive spore Cyatheacidites annulatus. The fossil foliage is morphologically similar to the Early Cretaceous form-genera Gleichenites and Microphyllopteris, whose […]
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Cephalopod and groundfish landings: evidence for ecological change in global fisheries?
Read more of: Cephalopod and groundfish landings: evidence for ecological change in global fisheries?Cephalopod fisheries are among the few still with some local potential for expansion; in fact, as groundfish landings have declined globally, cephalopod landings have increased. We propose the hypothesis that, […]
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