Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Physical modelling and experimental investigation of the abrupt afternoon decrease of cosmic noise absorption. / Shukhtina, M. A.; Sergeev, V. A.
в: Advances in Space Research, Том 17, № 10, 01.01.1996, стр. 147-150.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Physical modelling and experimental investigation of the abrupt afternoon decrease of cosmic noise absorption
AU - Shukhtina, M. A.
AU - Sergeev, V. A.
PY - 1996/1/1
Y1 - 1996/1/1
N2 - The amplitude of the substorm-related Cosmic Noise Absorption (CNA) bay often displays significant reduction near the noon MLT meridian in the auroral zone. Statistically the Local Time position of the afternoon CNA depression shows clear dependence on the IMF BZ values during preceding hour. We modelled the drift motion of charged particles (having different energies and pitch angles) in realistic magnetic and electric fields to investigate whether the convection electric field may cause considerable reduction of energetic electron precipitation. We found that the outward convection and deceleration lead to considerable decrease of particle fluxes and changes in their characteristics during particle drift over the noon sector. As a result, we found this effect alone may reduce precipitation by at least 30% over a 3 hour MLT segment of particle drift trajectories close to noon.
AB - The amplitude of the substorm-related Cosmic Noise Absorption (CNA) bay often displays significant reduction near the noon MLT meridian in the auroral zone. Statistically the Local Time position of the afternoon CNA depression shows clear dependence on the IMF BZ values during preceding hour. We modelled the drift motion of charged particles (having different energies and pitch angles) in realistic magnetic and electric fields to investigate whether the convection electric field may cause considerable reduction of energetic electron precipitation. We found that the outward convection and deceleration lead to considerable decrease of particle fluxes and changes in their characteristics during particle drift over the noon sector. As a result, we found this effect alone may reduce precipitation by at least 30% over a 3 hour MLT segment of particle drift trajectories close to noon.
UR - http://www.scopus.com/inward/record.url?scp=0043042318&partnerID=8YFLogxK
U2 - 10.1016/0273-1177(95)00707-L
DO - 10.1016/0273-1177(95)00707-L
M3 - Article
AN - SCOPUS:0043042318
VL - 17
SP - 147
EP - 150
JO - Advances in Space Research
JF - Advances in Space Research
SN - 0273-1177
IS - 10
ER -
ID: 36726159