Water—oceans, seas, storms, and rain—are a source of beauty, inspiration, and recreation for billions of people. As with many natural processes, part of that beauty is seated in the untamed grandness of those systems, which can sometimes turn hazardous. Water hazards have the potential to impact almost everyone on the planet, because roughly half of the world’s population lives within 100 miles of a coastline. Those who don’t are still at risk for experiencing local or regional flooding events. Natural Hazards at the University of Washington includes scientists and researchers working across water-related hazards, each with their own area of expertise—from extreme precipitation and regional climate change to roadways and mountain snow melt. In partnership with other experts, we are working toward resilient mitigation approaches to water hazards, including tsunamis, coastal threats, floods.

Tsunamis

Tsunamis are are series of enormous, seismic sea waves created by an underwater geologic disturbance like an earthquake, volcano, or landslide. These colossal waves are capable of moving at hundreds of miles per hour in the open ocean and can smash into our coastlines with waves exceeding 100 feet. Tsunamis can greatly impact coastal towns and those who live there, especially along the Pacific Ocean’s “Ring of Fire”—a geographically active area where tectonic shifts make volcanoes and earthquakes more common than in other places. This year, two UW mathematicians and their collaborators developed a tsunami model that simulates water’s movement. Recently, their model was used to help design the first-ever tsunami refuge structure in the country on the roof of a western Washington elementary school.

Palm

Coastal Threats

Coastal cities have long been a destination for those seeking sand, sunshine, and surf. Even after vacation ends and people return to their more landlocked locales, more than 50 percent of people in the United States remain on or near the coast. Naturally occurring hazards like storms, swelling tides, and currents constantly affect coastal processes, where erosion, landslides, and flooding can be easily triggered. At the University of Washington, coastal threats are researched from many perspectives, including scientists and researchers working in the environmental sciences, social sciences, policy, urban design, and others disciplines.

Flooded Cars

Floods

Anywhere it rains, a flood can occur—it’s one of the most common natural hazards in the United States and across the globe. Outdated, clogged, or at-capacity drainage systems and fast accumulation of rainfall, as well as hurricane systems and full levees can lead to flood conditions. Flooding can be local, impacting one neighborhood or a community, or very large, affecting entire river basins and multiple states. While some floods develop slowly, flash floods—the number one weather-related killer in the United States—can develop in moments and often bring along rushing water, large rocks, and trees. Floods are an area of concentration for the team working on natural hazards at the University of Washington, and the College of Built Environments’ Master of Infrastructure Planning & Management degree now offers a degree option in floodplain management aimed at inspiring and equipping the next generation of professionals working in floodplain mitigation.

Will more snow over Antarctica offset rising seas? Don’t count on it

A new study out of Earth and Space Sciences finds that warmer temperatures don’t necessarily equal more snowfall in Antarctica after all.

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Scientists recommend immediate plan to combat changes to West Coast seawater chemistry

Global carbon dioxide emissions are triggering troubling changes to ocean chemistry along the West Coast that require immediate, decisive actions to combat through a coordinated regional approach, a panel of scientific experts has unanimously concluded.
A failure to adequately respond to this fundamental change in seawater chemistry, known as ocean acidification, is anticipated to have devastating ecological consequences for the West Coast in the decades to come, the 20-member West Coast Ocean Acidification and Hypoxia (OAH) Science Panel warned in a comprehensive report unveiled April 4. 

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NOAA funds Washington Sea Grant to help communities protect their coasts

Washington SeaGrant was recently awarded nearly $900,000 by the National Oceanic and Atmospheric Administration to help coastal communities protect against hazards, including tsunamis, winter storms and sea-level rise.
The three-year project will help prepare Washington’s roughly 3,100 miles of coastline and more than 45 coastal cities for current and future hazards. The award is one of six NOAA Regional Coastal Resilience Grants awarded this year. 

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