Imaging the Smale-Scale Entrainment Processes Occurring in Breaking Waves

[9811149]迪恩：在这个项目中，PI将在毫米到厘米的长度尺度和毫秒的时间尺度上研究海洋破碎波中气泡的产生和演变。在成功的实验室仪器的基础上，将开发一种光学成像仪器，并将其部署在冲浪区，同时还将配备水下摄像机、压力传感器和水听器。在这样生成的图像中，空气-水边界显示为明亮的线条，较大的气泡显示为明亮的环，较小的气泡显示为明亮的点。单个图像中的模式将给出气泡形成的静态视图，而连续图像之间的差异将给出这些过程的动态视图。

9811149DeaneIn this project, the PI will study the creation and evolution of bubbles inside oceanic breaking waves on length scales of the order of millimeters to centimeters, and on millisecond time scales. An optical imaging instrument, based on a successful laboratory instrument will be developed and deployed in the surf zone, along with an underwater video camera, a pressure sensor, and a hydrophone. In the images thus created, air-water boundaries appear as bright lines, larger bubbles appear as bright rings, and smaller bubbles appear as bright dots. Patterns in individual images will give a static view of bubble formation, while the differences between successive images will give a dynamical view of these processes.