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Earth science

Researcher Liezel Rudolph stands next to an unmarked signpost on Marion Island.
Posted inNews

Geospatial Database for the Prince Edward Islands

by Munyaradzi Makoni 9 November 202217 November 2022

South African scientists map uninhabited islands in the Southern Ocean.

A sunset casts pink hues onto clouds over a waterway, with trees silhouetted against the light.
Posted inResearch Spotlights

Measuring the Ins and Outflows of Estuaries

by Saima May Sidik 8 November 20228 November 2022

Scientists modeled monitoring schemes in three different estuaries to determine instrument layouts that could effectively and efficiently measure exchanges of salt water and freshwater.

Four CubeSats close together in orbit above Earth.
Posted inOpinions

Looking to the Sky for Better Tsunami Warnings

by Shin-Chan Han, Simon McClusky, T. Dylan Mikesell, Paul Tregoning and Jeanne Sauber 4 November 202230 November 2022

Pairing navigation satellites and CubeSats could provide earlier, more accurate warnings of approaching tsunamis and other impacts of extreme events.

An aerial view of the skyline of Los Angeles.
Posted inNews

Reaching New Levels in Groundwater Monitoring

by Caroline Hasler 3 November 20223 November 2022

As regions around the world face record-breaking droughts, researchers are using seismology to track groundwater levels and show that sustainable policies reduce strain on aquifers.

Magnified black-and-white images of two fossils.
Posted inResearch Spotlights

Fluid Dynamics of Tiny, Ancient Marine Animals

Sarah Stanley, Science Writer by Sarah Stanley 2 November 202217 February 2023

Water flow simulations using 3D models of fossils yield new clues to the evolution of organisms known as medusozoans.

A bolt of lightning flashes across a night sky.
Posted inNews

Salt Spray May Stifle Lightning over the Sea

by Carolyn Wilke 1 November 20224 November 2022

New research suggests that sea-salt aerosols seed large raindrops that starve clouds of water needed to make lightning. But not all scientists are convinced it’s simply about salt spray.

Una distintiva nube en forma de hongo producto de una prueba nuclear se alza en un cielo azul oscuro y nubes atmosféricas.
Posted inNews

Una explosión de radiocarbono del pasado

by Caroline Hasler 31 October 202222 March 2023

El fechamiento por radiocarbono es un pilar de la climatología y la arqueología. Sin embargo, esta metodología se encuentra amenazada por las emisiones de combustibles fósiles, que invalidan una señal útil proveniente de pruebas nucleares.

Photo of a dry Peabody River—brown and gray boulders in a streambed in center, surrounded by greenery.
Posted inNews

U.S. Streams Are Drying Up

by Jennifer Schmidt 28 October 20228 November 2022

A new study reports that streamflow drought is getting more intense in some parts of the United States, a phenomenon that is stressing the nation’s water policy and infrastructure.

Un diagrama mostrando varios ciclos del agua en la Tierra. Se pueden observar en azul los reservorios del agua como los ríos, nubes, océanos y lagos.
Posted inNews

Este no es el ciclo del agua que conociste en tu infancia

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 27 October 202222 March 2023

El USGS (servicio geológico de los EE.UU.) acaba de sacar un diagrama del ciclo del agua completamente renovado, con los humanos como protagonistas.

A mass of steaming, orange-glowing lava consumes a street sign as it flows over a roadway.
Posted inResearch Spotlights

A Better Operational Lava Flow Model

by Morgan Rehnberg 26 October 202226 October 2022

By segmenting the vertical structure of a lava flow, the Lava2d model provides more realism to operational lava forecasts.

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