CIMU investigators use acoustic holograms to characterize ultrasound transducers, assuring that they are safe and effective for imaging and therapies.

What happens when a small river collides with an ocean surf zone? Unprecedented measurements were made in the Quinault River and its plume on the Washington coast to find out.

Sea ice grows throughout the dark, cold winter in the Arctic, reaching a maximum extent in March. In 2017, the extent was the lowest observed in the nearly 40-year-long satellite record. APL-UW polar scientists are watching how this year's reduced ice pack responds to conditions during the melt season.

An experimental noninvasive surgery method – boiling histotripsy – uses nonlinear ultrasound pulses to liquefy tissue at remote target sites within a small focal region without damaging intervening tissues.

Two physicists and a civil engineering graduate student inspire future scientists by translating their studies of glacial flow and Arctic Ocean salinity and surface waves into hands-on exhibits.

APL-UW oceanographers are aboard the R/V Sikuliaq in the North Pacific. They are using an array of robotic floats and ship surveys to measure the competing de/restratification processes in the upper ocean in response to winds during storms. Follow their blog.