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S. Witman

Researchers assess how human-made towers influence lightning data
Posted inResearch Spotlights

Antenna Towers Attract Additional Lightning Strikes

by S. Witman 26 May 201714 February 2023

Atmospheric scientists evaluate the influence of human-made structures on lightning data.

Streams and rivers play an important role in the exchange of carbon dioxide between terrestrial ecosystems, atmosphere, and ocean.
Posted inResearch Spotlights

Why Is There So Much Carbon Dioxide in Rivers?

by S. Witman 19 May 20176 March 2023

Observations of carbon dioxide oversaturation in the freshwater of the world led scientists to study its underlying causes at more than 100 field locations across the nation.

Researchers examine the impact of the Congo River on coastal waters.
Posted inResearch Spotlights

River Plumes near the Equator Have Major Effects on Oceans

by S. Witman 17 May 201722 July 2022

Every second, the Congo sends millions of gallons of freshwater deep into the Atlantic, influencing marine plants and wildlife.

Kate Scharer examining sediments disrupted by the San Andreas Fault near Desert Hot Springs, California.
Posted inResearch Spotlights

Catching Glimpses of Centuries-Old Earthquakes

by S. Witman 5 May 201728 October 2022

Researchers in the western United States survey the earthquakes that have torn up California for the past millennium.

A new study uncovers how planting trees might impact climate.
Posted inResearch Spotlights

Can Tree Planting Really Help Mitigate Climate Change?

by S. Witman 2 May 20178 November 2022

It depends on where, when, and how.

Elder Creek in the Eel River watershed of northern California.
Posted inResearch Spotlights

Lab Tests Probe the Secrets of Steep and Rocky Mountain Streams

by S. Witman 21 April 201727 April 2022

Researchers built a glass-encased test environment that helps them assess streamflow without the confounding factors introduced by bed forms.

Researchers untangle how large-scale convection scales respond to changes in atmospheric ozone.
Posted inResearch Spotlights

Could Stratospheric Ozone Depletion Make Hadley Cells Expand?

by S. Witman 21 April 20171 March 2023

Convection-driven Hadley cells are expanding poleward. Scientists now may have uncovered part of the reason why.

Researchers use zircon dating to unravel the processes behind the Toba supereruption.
Posted inResearch Spotlights

What Led to the Largest Volcanic Eruption in Human History?

by S. Witman 13 April 201716 March 2022

A mineral-dating project at the Toba caldera in Indonesia sheds light on the science of supereruptions.

Researchers work to unravel the unpredictable cycles of rainfall during India’s monsoon.
Posted inResearch Spotlights

Mysterious Intraseasonal Oscillations in Monsoons

by S. Witman 12 April 201716 December 2021

The unpredictable cycles of rainfall during India's summerlong monsoon have stymied scientists for decades.

A new study reevaluates a theory behind the mysterious “fairy rings” that vegetation can form in certain environments
Posted inResearch Spotlights

Mysterious "Fairy Circles" Continue to Enchant Scientists

by S. Witman 5 April 201725 October 2022

Researchers revisit an old theory about the ethereal patterns of vegetation that form in some arid landscapes.

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Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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