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Geology & Geophysics

Research Spotlight 24 October 2018

A More Detailed Look at Earth’s Most Poorly Understood Crust

The second-generation Antarctic Digital Magnetic Anomaly Project offers a powerful new tool for probing the structure and evolution of the southernmost continent’s lithosphere.

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Atmospheric Sciences

Research Spotlight 21 September 2018

Wind Speed Governs Turbulence in Atmospheric Inversions

Measurements made during a field campaign in Idaho indicate that the speed of winds 2 meters above Earth’s surface determines the type of turbulence present in nighttime inversions.

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Biogeosciences

Research Spotlight 21 September 2018

Autumn Warming No Longer Accelerating Carbon Loss in the North

An analysis of Point Barrow’s 40-year record points to the importance of calculating the carbon cycle’s response to temperature during the northern latitudes’ non-growing season.

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Planetary Sciences

Research Spotlight 13 August 2018

Evidence of Regional Deposition in Mars’s South Polar Deposits

Shallow Radar correlation of discrete units in one of the Red Planet’s largest ice reservoirs suggests that its material was emplaced as a single, regional deposit.

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Ocean Sciences

Research Spotlight 1 August 2018

Scraping Bottom: Iceberg Scours Reveal North Atlantic Currents

A 3-D seismic analysis of Pleistocene iceberg gouges indicates that surface currents in the Norwegian Sea flowed northward and remained consistent during numerous glacial cycles.

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Hydrology, Cryosphere & Earth Surface

Research Spotlight 24 July 2018

How Are Sediment Pulses Generated?

A new long-term flume experiment shows that bed load gravel travels downstream in recurring, 10-hour pulses even when water flow and sediment supply are constant.

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Ocean Sciences

Research Spotlight 23 July 2018

On the Origin of Infragravity Waves

Seafloor pressure sensor data show that long-period ocean surface waves radiating from the world’s shorelines are mostly reflected back to shore by the continental shelf edge.

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Space Science & Space Physics

Research Spotlight 20 July 2018

Measurements of Kelvin-Helmholtz Waves in Earth’s Magnetic Field

Simultaneous satellite observations from different distances of Earth’s magnetic tail offer insight into how these instability waves evolve through time and space.

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Biogeosciences

Research Spotlight 17 July 2018

Glacial Meltwater Plumes Support Greenland Phytoplankton Blooms

Field measurements from the Bowdoin Glacier show that entrainment of deep water into upwelling glacial discharge delivers crucial nutrients to the surface of the surrounding fjord.

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Climate Change

Research Spotlight 12 July 2018

Evaluating the Accuracy of Seasonal Climate Predictions

An analysis of historical modeling outputs is improving our understanding of the relationships between different types of seasonal forecasting skills.

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