Many oceanic properties are not directly observed but are instead estimated using proxy measurements. A new method uses physics-based correlations to reduce uncertainty in this relationship.
Modeling
Posted inResearch Spotlights
Deep-Ocean Oxygen May Increase with Climate Change
A millennial-scale ocean simulation indicates that oxygen gains in the deep ocean may offset oxygen losses in the upper water layer under a protracted climate change scenario.
Posted inResearch Spotlights
Dams Alter Nutrient Flows to Coasts
New models indicate how dams worldwide influence the mix of nutrients in river water reaching the ocean. As more dams are built, changing nutrient loads may adversely affect coastal ecosystems.
Posted inNews
New Tool Quantifies and Predicts Snow Droughts
A new metric for calculating snow water equivalence relies on three methodologies: modeling, satellite imagery, and direct observation.
Posted inEditors' Highlights
Characteristics of Polar Sea Ice in Latest Climate Models
Sea ice area in CMIP6 is similar to previous versions while its sensitivity to external forcing is subtly different and closer to observations, but still not in step with global surface temperature.
Posted inEditors' Highlights
Gas-Rich, Transcrustal Magma Storage in the Main Ethiopian Rift
Increments of melt trapped in crystals reveal upper crustal magmas in the Main Ethiopian Rift are rich in water and other volatiles, leading to extensive diffuse degassing and hydrothermal systems.
Posted inScience Updates
Measuring, Monitoring, and Modeling Ecosystem Cycling
Scientists leverage long-term environmental measurements, emerging satellite observations, and recent modeling advances to examine changes in ecosystem carbon and water cycling.
Posted inOpinions
Weathering Environmental Change Through Advances in AI
Developing trustworthy artificial intelligence for weather and ocean forecasting, as well as for long-term environmental sustainability, requires integrating collaborative efforts from many sources.
Posted inEditors' Vox
The Global Geomagnetic Field of the Past Hundred Thousand Years
Global data compilations and the production of time-varying paleomagnetic field models over the past hundred thousand years provide insights into geomagnetic field evolution.
Posted inNews
Asteroid Impact, Not Volcanism, Likely Spelled Dinosaurs’ End
Using climate and habitat modeling, researchers show that solar dimming caused by an asteroid impact would have plunged the world into an “impact winter” and decimated dinosaur habitats.