New proxy for reconnection
Gareth Chisham describes a new method for remotely sensing reconnection in the magnetosphere. This article is based on his poster, which won a 2005 Rishbeth Prize.
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Read more of: New proxy for reconnection
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A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the afternoon sector ionosphere
Read more of: A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the afternoon sector ionosphereThe open-closed magnetic field line boundary (OCB) is best measured at the foot points of the boundary in the Earth’s ionosphere where continuous and extensive spatiotemporal measurements can be made. […]
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A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the morning sector ionosphere
Read more of: A statistical comparison of SuperDARN spectral width boundaries and DMSP particle precipitation boundaries in the morning sector ionosphereDetermining reliable proxies for the ionospheric signature of the open-closed field line boundary (OCB) is crucial for making accurate ionospheric measurements of many magnetospheric processes (e.g. magnetic reconnection). This study […]
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The accuracy of using the spectral width boundary measured in off-meridional SuperDARN HF radar beams as a proxy for the open-closed field line boundary
Read more of: The accuracy of using the spectral width boundary measured in off-meridional SuperDARN HF radar beams as a proxy for the open-closed field line boundaryDetermining reliable proxies for the ionospheric signature of the open-closed field line boundary (OCB) is crucial for making accurate measurements of magnetic reconnection. This study compares the latitudes of spectral […]
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How isolated is Antarctica?
Read more of: How isolated is Antarctica?The traditional view of Antarctica and the surrounding Southern Ocean as an isolated system is now being challenged by the recent discovery at the Antarctic Peninsula of adult spider crabs […]
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Reconstructing the long-term aa index
Read more of: Reconstructing the long-term aa indexThe robustness of the aa geomagnetic index is of critical importance to the debate about the previously reported doubling of the solar coronal magnetic field in the last 100 years, […]
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Modeling a large solar proton event in the southern polar atmosphere
Read more of: Modeling a large solar proton event in the southern polar atmosphereWe have modeled the effects of the Sodankylä Ion Chemistry model (SIC) electron density profiles on VLF propagation across the southern polar region during the first few days of the […]
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Effects of a simulated Martian UV flux on the cyanobacterium, Chroococcidiopsis sp. 029
Read more of: Effects of a simulated Martian UV flux on the cyanobacterium, Chroococcidiopsis sp. 029Dried monolayers of Chroococcidiopsis sp. 029, a desiccation-tolerant, endolithic cyanobacterium, were exposed to a simulated martian-surface UV and visible light flux, which may also approximate to the worst-case scenario for […]
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A multi-spacecraft survey of magnetic field line draping in the dayside magnetosheath
Read more of: A multi-spacecraft survey of magnetic field line draping in the dayside magnetosheathWhen the interplanetary magnetic field (IMF) encounters the Earth’s magnetosphere, it is compressed and distorted. This distortion is known as draping, and plays an important role in the interaction between […]
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Fractal reconnection structures on the magnetopause
Read more of: Fractal reconnection structures on the magnetopauseSimple laminar flow models of the magnetosheath plasma lead to predictions of large-scale reconnection structures on the dayside magnetopause. There is observational evidence from the ionosphere that such structures exist. […]
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Opisthoteuthis borealis: a new species of cirrate octopod from Greenland waters
Read more of: Opisthoteuthis borealis: a new species of cirrate octopod from Greenland watersA new species of cirrate octopod, Opisthoteuthis borealis sp. nov. is described from specimens caught at depths of 957–1321 m off the coast of Greenland. Opisthoteuthis borealis sp. nov. is […]
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Trends in body size across an environmental gradient: A differential response in scavenging and non-scavenging demersal deep-sea fish
Read more of: Trends in body size across an environmental gradient: A differential response in scavenging and non-scavenging demersal deep-sea fishBody size trends across environmental gradients are widely reported but poorly understood. Here, we investigate contrasting relationships between size (body mass) and depth in the scavenging and predatory demersal ichthyofauna […]