Peter Pearsall
Science and Products
Reducing Flood Risks by Restoring Coral Reefs
Healthy coral reefs are more than just hotspots of marine biodiversity—they’re also invaluable to long-term resilience against coastal storms.
How Rising Seas Push Coastal Systems Beyond Tipping Points
A new multidisciplinary case study from USGS and collaborators looks at how even modest sea-level rise threatens coastal communities, infrastructure and ecosystems such as beaches, tidal marshes and estuaries by pushing them past “tipping points,” the crucial junctures at which even slight changes can fundamentally alter how an entire system behaves.
Timing of iceberg scours and massive ice-rafting events in the subtropical North Atlantic
Iceberg tracks in the seafloor: Icebergs can travel south all the way to Florida!
Ferromanganese nodules on a deep-ocean seamount
USGS Pacific Coastal and Marine Science Center researcher Kira Mizell talks about the discovery of a ferromanganese nodule field on a seamount deep in the North Atlantic Ocean.
Studying earthquakes from lake sediment: Lacustrine paleoseismology in Alaska
USGS researchers in Alaska, including geologist and Mendenhall Fellow Drake Singleton of the Pacific Coastal and Marine Science Center, are using techniques from a discipline known as lake paleoseismology, studying cores of lake sediment to reconstruct past seismic activity.
Sound Waves Newsletter - April-June 2021
Celebrate Ocean Month by exploring recent research and news from the USGS Coastal and Marine Hazards and Resources Program.
Seismic Reflections
To find out what’s shaking beneath the seafloor off southern California’s coast, USGS scientists turned on their hydrophones and used sound waves to “see” beneath the seafloor.