Physics
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29p..66g&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 16, pp. 66-1, CiteID 1819, DOI 10.1029/2001GL014534
Physics
17
Magnetospheric Physics: Magnetosphere-Inner, Magnetospheric Physics: Magnetospheric Configuration And Dynamics, Magnetospheric Physics: Plasma Convection, Magnetospheric Physics: Electric Fields (2411), Magnetospheric Physics: Plasmasphere
Scientific paper
Between the hours of 6-10 UT on May 24, 2000, the IMAGE extreme ultraviolet (EUV) instrument observed a shoulder-shaped bulge in the morning sector plasmapause [Burch et al., 2001a, 2001b]. Simulation results of the data-driven Magnetospheric Specification Model (MSM) have reproduced the formation (during 4:00-5:15 UT) and subsequent evolution of the shoulder. In the model, the shoulder is created by a dusk-to-dawn overshielding electric field, triggered by two sudden, strong northward (Nwd) turnings of the IMF. Overshielding causes antisunward flow of pre-dawn plasma, producing an asymmetric bulge that rotates eastward.
Freeman Walter J.
Goldstein Jeffrey Jay
Lambour Richard L.
Reiff Patricia H.
Sandel Bill R.
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