AI development for geophysical science - Open Access Government

Five scientists affiliated with the Lamont-Doherty Earth Observatory have received major honors from the American Geophysical Union (AGU) this year, recognizing their contributions to our understanding of the structure of the ocean floor, deep Earth processes and sea-level change, dust and paleoclimate, the ocean carbon cycle, and the physics of Earth’s deep interior. AGU, one of the world’s largest organizations of Earth scientists, recognizes members each year for outstanding accomplishments in research, education, science communication and outreach. All five will be recognized at AGU26, the union’s annual meeting, Dec. 7–11 in San Francisco, with the honors ceremony on December 9. They join three Lamont colleagues who received major honors from other organizations earlier this year: Maureen Raymo (Nemmers Prize in Earth Science), Michael Kaplan (Guggenheim Fellowship) and Folarin Kolawole (awards from National Geographic, the Geological Society of America and the National Association of Black Geoscientists).

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The spacecraft delivered materials and equipment for new research studies to the station.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.