New potential for tracking severe storms

Even just within the last couple of months, Cyclones Fani, Idai and Kenneth have brought devastation to millions. With the frequency and severity of extreme weather like this expected to increase against the backdrop of climate ...

SNoOPI: A flying ace for soil moisture and snow measurements

Work has begun on a new CubeSat mission that will demonstrate for the first time a new, highly promising technique for measuring soil moisture from space—data important for early flood and drought warnings as well as crop-yield ...

Satellites reveal a new view of Earth's water from space

In 1889, near the remote border town of Embudo, New Mexico, John Wesley Powell, the famous explorer of the Grand Canyon and second head of the U.S. Geological Survey, started a quiet scientific revolution.

Landslides triggered by Hurricane Maria

Hurricane Maria hit the island of Puerto Rico on 20 September 2017 and triggered more than 40,000 landslides in at least three-fourths of Puerto Rico's 78 municipalities. In a new article from GSA Today, authors Erin Bessette-Kirton ...

Controls on nitrogen nutrient availability in the Arctic tundra

Near the top of the world, plants grow on soil that rests atop permafrost, or permanently frozen soil. Just like plants in warmer regions, these need nitrogen to grow. The unique aspects of the permafrost environment create ...

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Moisture

Humidity is the amount of moisture the air can hold before it rains. Moisture refers to the presence of a liquid, especially water, often in trace amounts. Small amounts of water may be found, for example, in the air (humidity), in foods, and in various commercial products.

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