Years of data from a North Pacific ocean station show that the ocean's ability to pull carbon out of the atmosphere is controlled by biological and physical processes that change between seasons.
Research Spotlights
Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.
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Estimating Evaporation
A new framework provides scientists with a more precise understanding of potential evaporation from drying land surfaces.
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Permafrost Area Is Sensitive to Key Soil and Snow Physics
Accounting for key soil and snow variables shows a much higher impact on simulated permafrost area than uncertainties in land cover and climate data.
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Which Geodynamo Models Will Work Best on Next-Gen Computers?
A new study uses identical tests to evaluate the accuracy and performance of current models of Earth's magnetic field, then extrapolates the results to anticipated "petascale" supercomputers.
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Demystifying Mercury "Hollows"
Spectral data from NASA's MESSENGER spacecraft indicate that the properties of the depressions on Mercury's surface can vary within a single crater and that these differences may correlate to age.
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Gamma Ray Bursts Leave Their Mark in the Low Ionosphere
Scientists use very low and low-frequency radio signals to detect short gamma ray bursts and their impact on the low ionosphere.
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Bark Beetles Cause Big Tree Die-Offs, but Streams Flow Steadily
Recent beetle epidemics have driven tree die-offs across North America, and previous studies predicted an increase in annual streamflow would follow—but a new study shows this may not be the case.
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At the Intersection of Ice and Water
Scientists observe ice dynamics in water-terminating glaciers around the world to better understand how the process of subaqueous melt drives ice loss.
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The High Cost of Switching Power Sources
Researchers construct a world where nuclear energy everywhere is replaced with coal, with stark consequences for human health and the environment.
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New GPS Satellite Technique to Monitor Ionospheric Disturbances
Researchers are developing better ways to use satellites to understand space weather events that can interfere with technology.