Acoustic Environment of Haro Strait Field measurements and acoustic propagation modeling are combined to analyze the acoustic environment in Haro Strait of Puget Sound, home to pods of southern resident killer whales. Haro Strait is a highly variable acoustic environment with active commercial shipping, whale watching, and Naval activity. Acoustic Remote Sensing of Hydrothermal Flow High-frequency acoustic remote sensing offers an attractive method of detecting and probing scales of hydrothermal flow that are unattainable by point sampling methods. ALOHA/MARS Mooring The goal is to demonstrate the scientific potential of combining adaptive sampling methods with a moored deep-ocean sensor network at the Hawaii Ocean Time-series (HOT) station and ALOHA/MARS Observatory (AO). ASIAX ASIAEX East China Sea (ECS) is identifying and elucidating properties of shallow-water boundaries governing propagation and reverberation in the ECS, and establishing a geoacoustic description for the ECS seabed. Habitat Modeling and Acoustic Detection of Cetaceans Passive listening techniques are used to monitor large whales in the North Pacific. Long-term hydrophone arrays are used to describe seasonal blue whale call patterns throughout the North Pacific Ocean, which are then correlated with satellite data to show that sea surface temperature gradients or fronts often correspond to high zooplankton productivity and blue whale call locations. LOAPEX The LOAPEX (Long-range Ocean Acoustic Propagation EXperiment) studied the evolution, with distance (range), of the acoustic arrival pattern and in particular the range and frequency dependence of the spatial and temporal coherence; LOAPEX seeks to determine the effects of the ocean bottom near the NPAL acoustic source located near Kauai, Hawaii, and to produce a thermal map of the Northeast Pacific Ocean. NEPTUNE Power The NEPTUNE project is a linked array of undersea observatories on the Juan de Fuca plate in the northeastern Pacific Ocean. Fiber-optic power cable will connect land-based scientists, students, decision makers, and the public to distributed sensors above, on, and beneath the seafloor. NPAL The North Pacific Acoustic Laboratory (NPAL) project is a multi-institutional program aimed at understanding the behavior of sound transmissions in the ocean over long distances. Pioneer Sea Mount Scientists installed underwater hydrophones on the Pioneer Seamount, located off the coast of central California. The hydrophones allow researchers to remotely monitor and record ocean sound to further their understanding of the sources and effects of ocean noise. SAX99 The overall objective of SAX99 was to better understand the acoustic detection at low grazing angles of objects, such as mines, buried in sandy marine sediments. SAX04 SAX04 was designed to collect data and gain a greater understanding of high-frequency sound penetration into, propagation within, and scattering from the shallow water seafloor at a basic research level. It was also designed to provide data directly on acoustic detections of buried mine-like objects at low grazing angles. Shallow H20 Shallow H20 seeks to determine the dominant physical processes that affect the acoustic field and to develop decision-making tools for use in shallow water environments. This includes knowing how to choose the relevant environmental parameters to measure, how often to measure them, and how to best select acoustic applications frequencies. SORFED SOund Recording For EDucation Listen to natural and anthropogenic underwater sounds recorded by a hydrophone that is synced with a web camera showing what events on the surface cause the noise.