Using corn and soybeans as their testing ground, researchers at PNNL devised methods to peer into the mechanisms that modulate crop yield variability. They used statistical models to examine how climate variability impacts yields of these popular bioenergy crops at the county level. The work showed that dynamically determining fertilization timing and rates in their models can greatly improve the predictive capability for yields of both crops.
Scientists discovered a new material that absorbs visible light to generate electricity; this material might be useful for splitting water to produce a combustible fuel, hydrogen. The team is from Pacific Northwest National Laboratory and includes researchers from EMSL, the Environmental Molecular Sciences Laboratory, a DOE Office of Science user facility, and Argonne National Laboratory.
The way microbes breathe, called heterotrophic respiration, is influenced most heavily by one environmental factor: moisture. That influence and its parameters is the subject of a new paper by Zhifeng Yan, Vanessa Bailey, and other scientists at PNNL.
Congratulations to Mahantesh Halappanavar, with ACMD Division’s Data Sciences group, who co-authored “On Stable Marriages and Greedy Matchings,” the Best Paper award winner at the inaugural peer-reviewed SIAM Workshop on Combinatorial Scientific Computing. This first-ever CSC best paper, which Halappanavar co-authored with Fredrik Manne, Md. Naim, and Haakon Lerring, all from the University of Bergen (Norway), recently was published by SIAM as part of its conference proceedings series.
Our researchers advance the frontiers of science to study, predict, and engineer complex adaptive systems related to Earth, energy, and security. Our investigations inhabit every scale. We study the vast whirl of aerosol-laden clouds; the complex shoreline interfaces of land and sea; the mysterious microbiomes that teem just beneath the Earth’s surface; and the myriad of molecules busy on surfaces just angstroms wide.
We investigate elemental chemical and physical processes, including new catalysts that speed up the efficiency of renewable fuels. We study climate system dynamics to predict the effects of climate change. We design and synthesize the functional and structural materials of the future, including robust metal foils thinner than a human hair.
We are proud to host two unique DOE user facilities. EMSL facilitates molecular-level investigations into the physical, chemical, and biological processes that underlie the Earth’s most critical environmental issues. ARM provides a setting for climate research and instrumentation development, and is strengthened by streaming data from a worldwide complex of sensing stations.