The parabolic wave model is more reliable than the simplerefraction model in bigger area with slowly -varying water depth.
对于港外大范围缓变地形水域,抛物型方程模型较传统的折射模型则更可靠。
2
From the Angle of wave motion optics, on the principle of Huyghens, explaining the light of refraction. Simplifying the picture of the light of refraction and then getting a simple drawing method.