Аннотация:The radial distribution of the magnetospheric plasma pressure frequently shows the existence of definite features such as local increases and decreases. Regions with near to constant radial plasma pressure distribution were observed using INTERBALL/Tail probe and THEMIS mission satellites. Such regions were named the plasma pressure plateaus. In spite of the simultaneous observations near the same plateau pressure distribution by two satellites at near the same orbits with time delay ~30 min, it is essential to precisely separate purely temporal pressure changes from spatial variations. We compare the results of THEMIS observations with the predictions of Tsyganenko and Mukai [2003] model of magnetotail plasma pressure distribution using observed IMF and solar wind conditions from the OMNI data base. We also determine the projection of the observed pressure plateau to Iijima and Potemra [1978] picture of field-aligned currents using TS01, TA16 models. We show that observed plasma pressure profile cannot be the result of the temporal pressure changes.
