Nonlinear Internal Waves: Test of the Inverted Echo Sounder

Abstract : The long-term goal is to develop, through comprehensive observation, a physics based understanding of nonlinear internal wave [NLIW] generation and evolution applicable to a broad range of environments and the corresponding relationship to the internal tide. Develop through observations a robust relationship between subsurface features of NLIW and their surface remote sensing expression (especially SAR). The objective is to acquire observations of nonlinear internal waves in the South China Sea, using modified pressure sensor equipped inverted echo sounders [PIES]. The deployments will test the applicability of this technique and explore approaches for inverting the data to recover internal wave properties.