4837 to 4848 of 13838 results
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The winged Antarctic midge Parochlus steinenii (Gerke) (Diptera: Chironomidae) in the South Shetland Islands
Read more of: The winged Antarctic midge Parochlus steinenii (Gerke) (Diptera: Chironomidae) in the South Shetland IslandsThe morphological variation of adult Parochlus steinenii (Gerke) is described from measurements of two populations from the South Shetland Islands. Morphologically, the population from Ardley Island is significantly larger than […]
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Spatial structure of high latitude sporadic E
Read more of: Spatial structure of high latitude sporadic EObservations of high latitude types of sporadic E, Es, have been made at Halley, Antarctica (76°S, 27°W; L = 4.2) using a modern digital ionosonde with a direction finding capability. […]
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Flow law for ice in polar ice sheets
Read more of: Flow law for ice in polar ice sheetsTheories of glacier flow are based commonly on the assumption that ice is not a newtonian fluid, but has a non-linear stress-dependent viscosity1–5. Here we re-examine the spreading of Antarctic […]
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Degradation of internal organic matter is the main control on pteropod shell dissolution after death
Read more of: Degradation of internal organic matter is the main control on pteropod shell dissolution after deathThe potential for preservation of thecosome pteropods is thought to be largely governed by the chemical stability of their delicate aragonitic shells in seawater. However, sediment trap studies have found […]