From improving crop production to tracking mosquitoes, the Stable Isotope Facility in the UC Davis Department of Plant Sciences supports a wide range of research on campus and throughout the world. December 1, 2017 marks the facility’s 20th anniversary and they are holding an open house today to celebrate.
By Becky Oskin
As the Juno space probe approached Jupiter in June last year, researchers with the Computational Infrastructure for Geodynamics’ Dynamo Working Group were starting to run simulations of the giant planet’s magnetic field on one of the world’s fastest computers. While the timing was coincidental, the supercomputer modeling should help scientists interpret the data from Juno, and vice versa.
Video: Simulation of Jupiter’s magnetic fields
“Even with Juno, we’re not going to be able to get a great physical sampling of the turbulence occurring in Jupiter’s deep interior,” Jonathan Aurnou, a geophysics professor at UCLA who leads the geodynamo working group, said in an article for Argonne National Laboratory news. “Only a supercomputer can help get us under that lid.”
By Kat Kerlin
Coral reefs, seagrass meadows and mangrove forests work together to make the Coral Triangle of Indonesia a hotspot for marine biodiversity. The system supports valuable fisheries and endangered species and helps protect shorelines. But it is in global decline due to threats from coastal development, destructive fishing practices and climate change.
By Becky Oskin
Although life arose in the sea, some of its most astonishing evolutionary leaps happened after organisms conquered land, according to UC Davis paleobiologist Geerat Vermeij. Drawing on his encyclopedic knowledge of evolutionary change in the fossil record,
Vermeij has identified 11 major innovations that appeared first among terrestrial creatures. Vermeij describes the “irreversible shift” in evolutionary dominance from sea to land in a new study published online October 2017 in the journal Current Biology.
Mexico’s earthquake early warning system may have helped save lives in the Sept. 19 earthquake. Sirens in Mexico City sounded seconds before the earthquake struck the city, giving a brief window to shut down vital infrastructure and evacuate buildings. There was more warning, about 90 seconds, before the larger earthquake that occurred off the coast of Mexico Sept. 8.
A similar system has been tested for the U.S. West Coast including California and is expected to begin limited public operation in 2018.
By Kat Kerlin
The National Science Foundation has awarded $1.6M to the University of California, Davis to analyze the complex relationships between surface water and groundwater supply, agricultural land use and the economic wellbeing of rural, disadvantaged communities.
The project is led by principal investigator Helen Dahlke, an associate professor in the UC Davis Department of Land, Air and Water Resources. The team will develop models to help guide decision-making regarding water management and land use in the state.
by Peter Moyle, Jeff Opperman, Amber Manfree, Eric Larson, and Joan Florshiem
The flooding in Houston is a reminder of the great damages that floods can cause when the defenses of an urban area are overwhelmed. It is hard to imagine a flood system that could have effectively contained the historic amount of rain that fell on the region—several feet in just a few days. However, these floods are a stark reminder of the increasing vulnerability of urban areas across the world and the need for comprehensive strategies to reduce risk. The evidence is clear that green infrastructure, as defined below, can increase the resiliency of flood management systems and, when managed for multiple services, can reduce flood risk for many people while also promoting a range of other benefits.
For most of us Monday’s solar eclipse was a wonderful spectacle, but some scientists were out gathering data, too. Holly Oldroyd, assistant professor in the UC Davis Department of Civil and Environmental Engineering, joined a team led by Chad Higgins at Oregon State University to measure atmospheric fluxes during the eclipse.
As night turns to day and back there are changes in atmospheric temperature and pressure, water vapor and carbon dioxide, and in emissions from soils and plants into the atmosphere. Higgins’ experiment aimed to find out whether the same kinds of changes take place during the very short “night” created by the total solar eclipse. Normally these measurements are taken over time spans of half an hour or so, so the team, which also included researchers at Lawrence Livermore National Laboratory, had to come up with ways to make accurate measurements over a couple of minutes.
By Kathy Keatley Garvey
A study of microbes that live in the nectar of flowers has turned up an unexpected result that challenges a common assumption in ecology.
It’s been widely assumed that the more easily organisms can disperse between habitats, the more similar the mix of species in those habitats will be.
By Ann Filmer
Goals for carbon reduction from sequestration in soils set in the 2015 Paris Agreement are not feasible, according to an international team of climate scientists. Regardless of whether the U.S. remains part of the Paris climate accord, scientists at the University of California, Davis, are developing additional agricultural methods to offset increases in atmospheric greenhouse gases, thereby reducing the potential for global warming.