Ocean dynamics constantly generates seismic and acoustic noise (e.g. vie wave-seafloor interaction, surface wave activities, ice-noise and anthropogenic sources). This ubiquitous ambient noise waves, which can be measured continuously with hydrophones and seismic stations, travel around the earth and can be used to monitor their generating sources and image the propagating medium. This project will characterize the spatial and temporal generation mechanism of seismic and acoustic ocean noise sources which can be used for passive remote sensing and monitoring purposes. These include detecting temporal changes of seismic velocities in Solid Earth and temperature variations in deep oceans, and tracking distant storms and underground volcanic eruptions. The project will combine expertise in seismological and acoustic fields, and will utilize interdisciplinary approaches to extract exciting new signals from massive amount of ambient noises.