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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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Biogeosciences

Research Spotlight 2 July 2018

Dark and Stormy: How More Rainfall Leads to Warm and Murky Lakes

Reduced clarity in two northeastern Pennsylvania lakes has resulted in warmer surface water and cooler bottom water despite stable regional air temperatures during the past 3 decades.

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Geology & Geophysics

Research Spotlight 19 June 2018

Constraining Central Washington’s Potential Seismic Hazard

Fault geometry and slip rate analyses show deformation in the Yakima Fold Province accelerated in the Pleistocene and has remained elevated, offering new insights into earthquake recurrence intervals.

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Planetary Sciences

Research Spotlight 5 June 2018

Peering Through Titan’s Haze to Better Understand Its Surface

Variations in grain size and water ice content detected on Saturn’s largest moon offer evidence of geologically related units that resemble the mountain-to-desert transition on Earth.

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Hydrology, Cryosphere & Earth Surface

Research Spotlight 29 May 2018

A Novel Way to Map Debris Thickness on Himalayan Glaciers

By combining changes in elevation with other data, scientists have developed a method for estimating the thickness of debris covering glaciers on whose water more than 800 million people depend.

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Geology & Geophysics

Research Spotlight 22 May 2018

Challenging the Day Diagram, a Rock Magnetism Paradigm

A critique of the plot routinely used to determine bulk magnetic properties concludes the technique is so ambiguous that new approaches to understanding magnetic mineral assemblages must be developed.

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