Radiation belt electron precipitation due to geomagnetic storms: Significance to middle atmosphere ozone chemistry
نویسندگان
چکیده
منابع مشابه
Radiation belt electron precipitation into the atmosphere: Recovery from a geomagnetic storm
[1] Large geomagnetic storms are associated with electron population changes in the outer radiation belt and the slot region, often leading to significant increases in the relativistic electron population. The increased population decays in part through the loss, that is, precipitation from the bounce loss cone, of highly energized electrons into the middle and upper atmosphere (30–90 km). Howe...
متن کاملUse of POES SEM‐2 observations to examine radiation belt dynamics and energetic electron precipitation into the atmosphere
[1] The coupling of the Van Allen radiation belts to the Earth’s atmosphere through precipitating particles is an area of intense scientific interest. Currently, there are significant uncertainties surrounding the precipitating characteristics of medium energy electrons (>20 keV), and even more uncertainties for relativistic electrons. In this paper we examine roughly 10 years of measurements o...
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Accurate representation of odd-nitrogen species (NOx) in the winter polar middle atmosphere is an important factor in correctly predicting ozone in the upper stratosphere. The concentration of NOx depends on several factors, including the state of stratospheric winds, the strength of diffusive transport near the mesopause, and the deposition of energetic particles in the mesosphere and the lowe...
متن کاملElectron flux enhancement in the inner radiation belt during moderate magnetic storms
During moderate magnetic storms, an electron channel (300–1100 keV) of the NOAA satellite has shown sudden electron flux enhancements in the inner radiation belt. After examinating the possibility of contamination by different energetic particles, we conclude that these electron flux enhancements are reliable enough to be considered as natural phenomena, at least for the cases of small to moder...
متن کاملResponse of the Antarctic Ionosphere to Some Intense Geomagnetic Storms
Method: For this purpose, foF2 data from four Antarctic stations were analyzed during three intense magnetic storms occurred in high solar activity (years 2002 and 2003). In general, negative storm effects irrespective of the local time were observed during the first part of the storms (main phase). Negative effects were also observed more often than positive effects during the first part of th...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2010
ISSN: 0148-0227
DOI: 10.1029/2010ja015599