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Uncertainties in Bay Models
How can managers and scientists use models to answer questions if they don’t understand the uncertainties of the models? Researchers at Virginia Tech and the Chesapeake Bay Program recently published a paper in Environmental Modeling and Software using a new technique to analyze the uncertainties of three models of the Susquehanna River Watershed. Their results suggest that the models preformed...
Read MoreNew Technique for PCBs
Polychlorinated biphenyls (PCBs) were used extensively in building materials and electronic transformers until their ban in 1979. PCBs are persistent carcinogenic compounds that bioaccumulate in aquatic and terrestrial environments and are frequently cause for fish consumption advisories across the US. Managing these compounds has been the center of many engineering efforts for decades, but a...
Read MoreWetlands and Carbon Storage
As Sea Level Rises, Wetlands Crank Up Their Carbon Storage Written by Kristen Minogue for the Shorelines Blog Some wetlands perform better under pressure. A new study revealed that when faced with sea-level rise, coastal wetlands respond by burying even more carbon in their soils. Coastal wetlands—which include marshes, mangroves and seagrasses—already store carbon more efficiently than any...
Read MoreMethod for Nutrient Management
Scientists have long sought ways to help reduce nutrient pollution to the Chesapeake Bay from agricultural lands, particularly in Pennsylvania. To test different methods of manure application, researchers from Pennsylvania State University (PSU) compared plots with manure injected into the soil with plots where manure was broadcasted over the soil to compare phosphorous runoff. This research...
Read MoreODU Scientist Honored
A scientist at Old Dominion University (ODU) was recently awarded the Virginia Renewable Energy Leadership Award for his work on offshore wind energy. George Hagerman is a senior project scientist for the Center for Coastal Physical Oceanography at ODU and has been working on renewable energy issues for his entire career. The Virginia Renewable Energy Alliance is a Richmond-based trade...
Read MoreAnaerobic Microbial Communities
When modeling low-oxygen environments, researchers examine chemical signals of biogeochemical cycles, but rarely do they try to model the microbial community underlying those cycles. Sarah Preheim of Johns Hopkins University (JHU) used a lake ecosystem to model how the microbial community responded to anoxic conditions. She hopes to one day apply techniques learned from the lake study to the...
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