Solar wind control of plasma number density in the near Earth plasma sheet: three- dimensional structure

Plasma number density in the near-Earth plasma sheet depends strongly on solar wind and IMF: (1) plasma sheet number density positively correlates with solar wind number density [Borovsky et al., 1998]. (2) plasma sheet number density positively correlates with theta angle of IMF with time lag of several-hours [Terasawa et al., 1997]. Recently, Nagata et al. [JGR in press] shows two-dimensional structure of such dependences in the near- Earth central plasma sheet (X<0, 9