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Meteoroids of sub-milligram sizes burn up high in the Earth's atmosphere and cause streaks of plasma trails detectable by meteor radars. The altitude at which these trails, or meteors…
The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere.
Antarctic krill (Euphausia superba) are a circumpolar species with an omnivorous diet. Knowledge of krill diet within different regions will help predict how environmental change may impact local krill populations. Krill from the Atlantic, Indian…
The Hunga Tonga–Hunga Ha?apai volcano erupted on 15 January 2022, launching Lamb waves and gravity waves into the atmosphere. In this study, we present results using 13 globally distributed meteor radars and identify the volcanogenic gravity waves in the mesospheric/lower thermospheric winds.
Bursty bulk flows are understood to be the predominant flux transport mechanism in the … magnetotail.
Abstract. An auroral westward flow channel (AWFC) is … a latitudinally narrow channel of unstable F-region plasma … with intense westward drift in the dusk-to-midnight sector … ionosphere. AWFCs tend to overlap the equatorward edge of … the auroral oval…
At 08:35 UT on 21 November 2004, the onset of … an interval of substorm activity was captured in the southern … hemisphere by the Far UltraViolet (FUV) instrument on … board the IMAGE spacecraft. This was accompanied by … the onset of Pi2 activity and subsequent magnetic bays…
Earthward injections of energetic ions and electrons … mark the onset of magnetospheric substorms. In the inner … magnetosphere (L4), the energetic ions drift westward … and the electrons eastward, thereby enhancing the equatorial … ring current.
In this paper we examine the geomagnetic signatures of solar wind impulses using magnetometer array data, a bistatic HF radar, and a co-located imaging riometer. The impulses were associated with 1.6mHz magnetic pulsations that were observed across a wide range of latitudes.
Serum clinical chemistry parameters were examined in lactating southern elephant seal Mirounga leonina mothers and … their pups from the declining Macquarie Island population.There were significant changes in serum values from 2 to … 21 days postpartum in both nursing mothers (increase: