Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)

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177 posts categorized "Research Highlights"

07/02/2014

Extreme Rain: Comparing Climate Models

Daniele Rosa and Bill Collins compared precipitation data from Southeastern U.S. rain-gauge measurements with GCMs, finding that GCMs overestimate the impact of medium rainfall while underestimating the impact of no, low, or heavy rain.

06/16/2014

Modeling How Fractures Develop

Daisuke Asahina led development of a modeling approach for studying hydromechanical coupled processes within geological formations. Model simulations showed good agreement with two independent studies of hydromechanical coupling.

05/21/2014

How Microbes Deal with Permafrost

In the May 12 (2014) issue of Nature Reviews Microbiology, Janet Jansson and Neslihan Tas explore the microbial ecology of permafrost, including some of the strategies microbes use to cope with frozen conditions, as well the influence of climate change.

Geothermal Team Applies New Approach

Three papers (Spycher et al., Peiffer et al., and Wanner et al.) by the same team of ESD geochemists are to appear in the July 2014 issue of Geothermics.

Numerical Model Assesses Nevada Geothermal Area

Christoph Wanner recently led a team of ESD scientists in developing a new reactive transport model of the Dixie Valley, Nevada, geothermal region, aiming to assess fluid flow pathways and fluid rock interaction processes at the site.

Optimized Geothermometry for Geothermal Exploration

ESD’s Loic Peiffer recently led a team of ESD scientists in exploring a new geothermometry approach as a tool for inferring geothermal reservoir temperatures (the key in evaluating how productive a geothermal source could be).

Integrated Solute Geothermometry

Team of ESD geochemists revisits the mineral saturation index geothermometry method with the objective of simplifying its application and improving predictions of geothermal reservoir temperatures using numerical optimization.

05/08/2014

Biofuels: Increasing Bacterial Fatty Acids

Harry Beller and others recently found homologs of Escherichia coli FabG, an essential reductase involved in fatty acid biosynthesis, in work that could serve as a starting point for microbial production of fatty acid-derived biofuels.

04/29/2014

Seedling Germination Marks Ecosystem Boundaries

Cristina Castanha and others quantified conifer seedling recruitment at Niwot Ridge, CO, to find whether local adaptation influenced forest ecosystem boundaries. Their results suggest that survival through the first few weeks is critical.

04/23/2014

How Habitable Was Mars?

Commenting on an article in BBC News Science and Environment this past week, ESD’s and UC Berkeley’s Michael Manga suggests that the key to life on ancient Mars would be the existence of liquid water.