Getting the polar stratosphere right is critical in the simulation of North Atlantic climate change, which is shaped by the interaction of Arctic Amplification and tropical upper tropospheric warming.
Geophysical Research Letters
Posted inEditors' Highlights
First Inside Look at Hot and Cold Ions in Jupiter’s Ionosphere
The first in-situ ion observations from NASA’s Juno spacecraft reveal the surprising, simultaneous presence of cold protons and hot oxygen and sulfur ions in the high-latitude ionosphere of Jupiter.
Posted inResearch Spotlights
As Arctic Sea Ice Disappears, What Happens to Ecosystems?
The northern Bering Sea is experiencing record-setting low winter sea ice levels, which are impacting plankton, fish, and other animals in the region.
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Most Southern California Mainshocks Follow Foreshocks
New research using a highly complete earthquake catalog shows that 72% of M4+ mainshocks are preceded by foreshocks, implying that foreshock activity is much more prevalent than previously thought.
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Hiding Deep Hydrous Melts at the Core-Mantle Boundary
Silicate melts containing H2O in the lowermost mantle are surprisingly dense and may stagnate there, trapping primordial volatiles and potentially causing some of the ultra-low velocity zones.
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Molecular Ions Unexpectedly Frequent in Earth’s Magnetosphere
A Japanese satellite reveals rapid and surprisingly frequent transport of molecular ions from the ionosphere to the magnetosphere, under not only extreme but also moderate geomagnetic conditions.
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Tropical Forests May Have More Canopy Than Previously Thought
A rare attempt to directly estimate leaf area in a tropical African broadleaved forest suggests that there may be more tree foliage than previously estimated.
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Accounting for the Fact that Snow Falls Slower than Rain
When calibrating satellite observations with ground-based ones, estimated precipitation rates are improved by considering that snow takes longer to fall compared to rain.
Posted inResearch Spotlights
Sampling the Space Between the Stars
Data from the Cassini and Voyager spacecraft reveal new information about the Sun’s magnetic bubble.
Posted inResearch Spotlights
Past Climate Sensitivity Not Always Key to the Future
New research suggests that changes in continental configuration, solar brightness, and background atmospheric carbon dioxide levels all conspire to drive Earth’s climate sensitivity over geologic time.