De petits sismomètres peu coûteux peuvent communiquer des données de haute qualité et en temps réel. Pendant le tremblement de terre d’août 2021, ils ont été mis à l’épreuve.
Earth science
La chimie du corail reflète l’expansion économique d’Asie du Sud-Est
Les sols en érosion en raison du développement économique ont transporté des sédiments en mer de Chine méridionale… et jusque dans le squelette corallien.
Landfast Sea Ice: The Most Important Ice You’ve Never Heard Of
Landfast sea ice, sea ice that is held stationary against the Antarctic continent, links firmly with many key climate processes, but its importance is only being fully realized as its extent dwindles.
A Holistic Approach to Hydropower Data
A new online platform offers comprehensive data and tools about U.S. hydropower assets, enabling data-driven decisionmaking at the energy–water nexus.
Evidence of Earth’s Oldest Glaciers Found in South Africa
The ancient glaciers hint at an Archaean Earth that may have looked similar in some ways to our own time.
Frozen Riverbanks May Erode Faster in a Warming Arctic
Frozen flume experiments reveal the sensitivity of permafrost riverbank erosion to water temperature, bank roughness, and pore-ice content.
Biogeochemical Insights from a Major Amazonian River
Underrepresented in global carbon budgets, tropical rivers like Brazil’s Tocantins are in need of study to establish their baseline characteristics in the face of increasing global change.
Global Earthquake Analysis Seeks Elusive Foreshock Signal
Spotting foreshocks for what they are could help seismologists forecast large earthquakes.
Herbivore Diversity Helps Maintain Arctic Tundra Diversity
A long-term experiment in southwestern Greenland reveals that the presence of musk oxen and caribou helps stave off declines in Arctic tundra diversity brought on by climate change.
A Massive Landslide Beheaded One of the World’s Highest Peaks
Annapurna IV toppled in a Himalayan landslide, and scientists finally figured out when and how it happened.
