The paper discusses the methodology for determining the parameters of the hydrophysical background of a shallow sea stratified by density. The background of this sea is characterized by quadratic nonlinearity - α, high-frequency dispersion -β and phase velocity of linear internal gravitational waves - c ₀. In the framework of the theory of weakly-intensity shock waves in media with weak dispersion, expressions are obtained for calculating the parameters: α, β and c ₀. The data for calculations are in-situ measurement of the spatial-temporal characteristics of the internal undular bores, traveling on the pycnocline of the shallow sea.

中文翻译：

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具有弱色散和弱非线性的密度分层浅海的非线性诊断

本文讨论了确定按密度分层的浅海水物理背景参数的方法。这片海的背景特征是二次非线性-α、高频色散-β和线性内部引力波的相速度-c ₀。在弱色散介质中的弱强度冲击波理论框架下，得到了参数α、β和c ₀的计算表达式。用于计算的数据是在浅海重跃层上移动的内部波状钻孔时空特征的现场测量。