论赤道扩展F的密度不规则体(Ⅰ)

ON IRREGULARITIES OF EQUATORIAL SPREAD F (I)

本文从等离子体二流体方程组出发,导出适于描述晚间赤道F层现象的DFA模型。证明该模型存在大量偶极涡解。它们可望用于解释赤道扩展F过渡区和中小尺度两区域内存在的大量密度不规则体事实。

The DFA (Drift-plute-Alfvenic),model equations describing the nonlinear phenomena of the equatorial F-layer at night are derived from plasma,two-fluid equations.A large number of dipole vortices,which can be used to explain irregularities existing in transitional and intermediate regions during ESF,are obtained from the DFA model equations.