Abstract
The expedition carried out in March, 2008 to Lake Baikal became an important stage in the development of the SPHERE experiment. During the expedition the SPHERE-2 installation was hoisted, for the first time, on a tethered balloon, APA, to a height of 700 m over the lake surface covered with ice and snow.
A series of test measurements were made. Preliminary results of the data processing are presented.
The next plan of the SPHERE experiment is to begin a set of statistics for constructing the CR spectrum in the energy range 1016-1018 eV.