PECULIARITIES OF CLOUD DYNAMICS IN THE CRRES CARIBBEAN RELEASES IN THE IONOSPHERE (OPTICAL-DATA)

The optical peculiarities of the cloud dynamics in four CRRES Caribbea n ionospheric barium releases are presented. There are (1) the high ve locity ''bow-like'' front of a glow, (2) the ion ''skidding'' effect, (3) thin ion track along satellite path, (4) small-scale structure in the ''head'' of ion cloud and (5) the wave deformation of ion cloud sh eet border, observed by low light level TV-imagers. The observations o f ion clouds located close to magnetic zenith point were made from res earch vessel. The high velocity (V = 7 km/s) front of a glow was obser ved during first ten seconds of the barium cloud expansion. The ion '' skidding'' effect was observed in the G-9 (18 km) and G-11a(14 km) rel eases. In the G-11a release thin ion track was appeared between releas e point and braking point of main ion cloud. The model of wave deforma tion of ion sheet border in the G-11a release connected with variation s of ionosphere E-field is proposed.