Dissolved thorium isotopes light the way to a more thorough understanding of how different elements enter marine environments—and how long they stay there.
Oceans
Coral Microbiomes Offer Clues for Resilience and Conservation
Some coral species might be better equipped to adapt to a warmer, more acidic ocean. Finding out which ones, and why, could be the key to saving reefs around the world.
New Program Connects Ocean Health and National Security
Sen. Sheldon Whitehouse says the security risk along the U.S.–Mexican border pales compared with the security threat from the decline in ocean health.
Icebergs Reveal Contours of the Ocean Bottom
Using satellite imagery of grounded icebergs near Greenland, researchers estimate the drafts of these ice masses and therefore water depth, measurements that shed light on future sea level rise.
Keeping a Watch on Seaweeds: The Forests of the World’s Coasts
Planning the Implementation of a Global Long-Term Observing and Data Sharing Strategy for Macroalgal Communities; Hobart, Tasmania, Australia, 24–26 September 2018
How Do Turbidity Currents Accelerate?
Flume experiments show that a self-reinforcing cycle can strengthen the currents responsible for transporting large amounts of sediment to the deep oceans.
Radionuclide Data from GEOTRACES Improve Particle Flux Estimates
New measurements of multiple radionuclides in the Atlantic Ocean offer a robust constraint on the sinking flux of particles and associated vertical fluxes of biogeochemically important elements.
Scientists Invited to Collaborate in Satellite Mission’s Debut
The Surface Water and Ocean Topography mission will begin by scanning Earth’s surface once a day. We invite ocean scientists to contribute ground-based measurements to compare with the satellite data.
A Comprehensive Estimate on the Entropy Budget in the Ocean
An analysis of the energy budget in the ocean estimates the Carnot work to be 110 terawatts and the ocean’s Carnot efficiency to be 0.86%.
Nicklas G. Pisias Receives 2018 Maurice Ewing Medal
Nicklas G. Pisias was awarded the 2018 Maurice Ewing Medal at the AGU Fall Meeting Honors Ceremony, held on 12 December 2018 in Washington, D. C. The medal is for “significant original contributions to the ocean sciences.”