NLS EQUATION OF INTERNAL WAVES IN WEAKLY STRATIFIED OCEAN

• 作 者: 徐肇廷rrrrrrrrn 楼顺里rrrrrrrrn 田纪伟
• 出 处: Chinese Journal of Oceanology and Limnology
• 发表日期: 1996年02期
• 关键词: ocean soliton perturbation unstable otherwise stratified envelope propagate coor

The NLS (Non-Linear Schr(?)dinger) equation of internal waves in a wekly stratified ocean is der-ived in phase coordnates in terms of the RPM (Reductive Perturbation Method). It was shown thatwhen AB>0 there exist modulation forms of envelope soliton and dn, and tha when AB<0 there arethree modulation forms dark soliton, sn and cn. Only if K~2>B/A(?) . the side-band perturbation is stable,otherwise unstable. For the stable side-band perturbation there ekisis a modulation form of MdV soliton.

The NLS (Non-Linear Schr (?) Dinger) equation of internal waves in a wekly stratified ocean is der-ived in phase coordnates in terms of the RPM (Reductive Perturbation Method). It was shown that there was AB> 0 there exist modulation forms of envelope soliton and dn, and tha when AB <0 there arethree modulation forms dark soliton, sn and cn. Only if K ~ 2> B / A (?). the side-band perturbation is stable, otherwise unstable. For the stable side-band perturbation there ekisis a modulation form of MdV soliton.