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Laure Resplandy, an assistant professor in Geosciences and Princeton Environmental Institute, awarded prestigious 2019 Sloan Research Fellowship, a highly competitive grant given to outstanding young scholars working at the frontiers of their fields.
Professor Tom Duffy’s research group has been awarded experimental time on Lawrence Livermore National Laboratory’s (LLNL) National Ignition Facility (NIF) to explore the nature of minerals deep in the interior of rocky extrasolar planets.
Seismologists Jessica Irving and then-graduate student Wenbo Wu (who just defended his thesis last month!) used earthquake waves measured after a 1994 magnitude 8.2 earthquake to find underground mountains, at the bottom of the mantle’s “transition zone,” located 660 kilometers straight down.
Mesoscale eddies — the storm systems of the oceans — mix water masses and are crucial for the transport of heat, salt, carbon and nutrients in the global oceans. In this study, researchers find that the mixing effects of mesoscale eddies at the surface vary strongly in time, connected to fluctuations in the large scale climate like e.g. ENSO. This could be a new climate feedback mechanism that is currently not represented in global climate models.
Earth has a song, a symphony composed of ubiquitous, continuous subtle seismic signals that thrum beneath the hustle and bustle of modern society. The term “ambient seismic noise” is the “classic nomenclature found in scientific literature,” often used to describe both microseisms and seismic hum, although “these are not synonyms,” says Lucia Gualtieri, a postdoctoral research associate in geophysics at Princeton University.
A startling study says that devastating storms that intensify rapidly are becoming more common. In the new study, the researchers used two separate data sets of storm behavior to analyze changes in the tendency of hurricanes to rapidly intensify.
Tropical cyclones that rapidly intensify are typically associated with the highest forecast errors and cause a disproportionate amount of human and financial losses. Therefore, it is crucial to understand if, and why, there are observed upward trends in tropical cyclone intensification rates.
The percentage of tropical systems that have intensified rapidly in the Atlantic Ocean has tripled over the last three decades, according to a study published Thursday in Nature Communications, a scientific research journal.
Seismologists use waves generated by earthquakes to scan the interior of our planet, much like doctors image their patients using medical tomography. Earth imaging has helped us track down the deep origins of volcanic islands such as Hawaii, and identify the source zones of deep earthquakes.

“Imagine a radiologist forced to work with a CAT scanner that is missing two-thirds of its necessary sensors,” said Frederik Simons, a professor of geosciences at Princeton.
The Department of Geosciences and Princeton University congratulates Dr. James Smith on successfully defending his Ph.D. thesis: "Seismic Imaging of Underground Tunnels Using Full Waveform Inversion" on Monday, January 28, 2019.