To better understand subsurface processes associated with earthquakes and eruptions of Mount Aso, Kyushu University researchers investigated a very long period (VLP) seismicity dataset collected over two years. A new technique was developed to locate VLP events, and two clusters of such events were detected. Changes in the locations of VLP events were closely associated with earthquake and eruption occurrences. This method advances understanding of seismic and volcanic processes and could contribute to disaster mitigation.
Stellarators, twisty machines that house fusion reactions, rely on complex magnetic coils that are challenging to design and build. Now, a PPPL physicist has developed a mathematical technique to help simplify the design of the coils.
Increasingly frequent and severe forest fires could burn generations-old carbon stored in the soils of boreal forests, according to results from the Arctic-Boreal Vulnerability Experiment (ABoVE) funded by NASA's Earth Science Division. Releasing this previously buried carbon into the atmosphere could change these forests' balance of carbon gain and loss, potentially accelerating warming.
A research team investigated the impact of extreme fires on previously intact carbon stores by studying the soil and vegetation of the boreal forest and how they changed after a record-setting fire season in the Northwest Territories in 2014. They collected 200 soil samples and used radiocarbon dating to estimate the carbon age. They found combustion of legacy carbon in nearly half of the samples taken from young forests (less than 60 years old).
California leads the nation in the adoption of rooftop solar systems, but information on which communities do, and do not, benefit from these installations has been limited. The adoption of distributed solar -- rooftop installations as opposed to industrial-scale operations like solar farms -- is closely correlated with socioeconomic status and health, environmental and demographic indicators. The study, published online August 20, 2019 in Energy Policy, is the first peer-reviewed analysis of distributed solar adoption in disadvantaged communities.
He solved a 127-year-old physics problem on paper and proved that off-centred boat wakes could exist. Five years later, laboratory experiments proved him right.
Scientists have combined analyses from honey and salmon to show how lead from natural and industrial sources gets distributed throughout the environment. By analysing the relative presence of differing lead isotopes in honey and Pacific salmon, Vancouver-based scientists have been able to trace the sources of lead (and other metals) throughout the region. The research is being presented at the Goldschmidt conference in Barcelona.
Invasive mosquitoes at the northern limit of their current range are surviving conditions that are colder than those in their native territory. This new evidence of rapid local adaptation could have implications for efforts to control the spread of this invasive species.
Scientists may have uncovered how sea-surface temperature patterns influence the number, strength and distributions of April tornado formation in the south-central region of the United States known as 'Tornado Alley.' Their results underscore how shifting climate patterns potentially affect tornado formation within seasons, which could help reduce fatalities and
New research on one of the oldest and most complete fossil primate skulls from South America shows instead that the pattern of brain evolution in this group was far more checkered. The study, published today in the journal Science Advances and led by researchers from the American Museum of Natural History, the Chinese Academy of Sciences, and the University of California Santa Barbara, suggests that the brain enlarged repeatedly and independently over the course of anthropoid history.