A new WHOI-led research initiative will receive $1.5 million from NASA to investigate the role of various processes behind extreme sea-level events that lead to coastal high-tide flooding around the world. “The frequency of high-tide flooding events occurring around the U.S. and worldwide is rapidly accelerating,” says WHOI physical oceanographer Chris Piecuch. Traditionally, such events can be observed by NOAA tidal gauges, which make on-the-minute measurements of coastal sea level. That's where NASA satellites come in. Sea-level satellites orbiting the planet every 10 days can generate a global snapshot of the state of sea level over the entire ocean.