A new method for using satellite observations from multiple sensors improves measurements of ocean waves as they propagate through and interact with sea ice.
Oceans
Posted inNews
Precession Helped Drive Glacial Cycles in the Pleistocene
By studying bits of rock scooped up by ancient glaciers, researchers have pinned down that recent glacial variability was driven, in part, by changes in the direction of Earth’s axis of rotation.
Posted inEditors' Highlights
An Ocean Surface Layer with Potential
The depth of the ocean’s surface mixed layer is typically defined based on density thresholds. However, a more physically appealing definition can be constructed from potential energy considerations.
Posted inResearch Spotlights
Understanding the Calcium Carbonate Cycle in the North Pacific
Using data collected from Hawaii to Alaska, a new study sheds light on calcium carbonate cycling in the ocean, an understudied component of the global carbon cycle.
Posted inNews
Arctic Shipping Routes Are Feeling the Heat
Climate science and the global shipping industry collide in an ice-poor Arctic.
Posted inNews
Vehículos robóticos exploran campos de batalla de la Segunda Guerra Mundial en el océano
El Proyecto Recover usa vehículos autónomos submarinos para identificar, acceder, y captar imágenes de sitios difíciles de alcanzar con restos de la Segunda Guerra Mundial, cerca de las Islas Marianas del Norte.
Posted inFeatures
Sea Level Science and Applications Support Coastal Resilience
Known for precise, planetary-scale measurements, NASA is improving its decades-long effort to observe and understand sea levels to help communities prepare for the effects of Earth’s rising ocean.
Posted inNews
Ocean Acidification May Drive Diatom Decline
Diatoms contribute to global oxygen production, marine food webs, and carbon sequestration, but scientists predict that diatom populations will decline due to ocean acidification associated with climate change.
Posted inNews
Algal Mats May Be a Key to the Arctic Food Web
Melt ponds in sea ice have thriving algal communities with startlingly high levels of photosynthetic activity.
Posted inNews
Without Deep Emissions Cuts, Marine Species Face Mass Extinction
On the basis of how much oxygen marine species need and how much is available, researchers predict extinctions comparable to those at the end of the Permian under a business-as-usual emissions scenario.