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Biogeochemistry

Evaluating Potential Impacts on Groundwater of Passive Composting of Spent Mushroom Substrate According to Best Practices Guidelines

1024 681 Stroud Water Research Center

Researchers are testing whether Pennsylvania Department of Environmental Protection guidelines for passive composting of spent mushroom substrate are protecting groundwater.

Collaborative Research: Coupled Geochemical and Geobiological Characterization of Dissolved Organic Matter Oxidation to Carbon

1024 681 Stroud Water Research Center

Scientists are studying stream networks from two different climatic regions to identify which molecules release high rates of CO2 into the atmosphere from streams and rivers.

Metaecosystems and the Upstream Legacy: Influence of Dissolved Organic Matter on the Structure and Function of Streambed Bacterial Communities

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Investigators explore how the quality of organic molecules changes with distance downstream and how those changes influence the composition of the communities of streambed microbes using that food resource.

Meet Our New Scientist: Diana Oviedo-Vargas

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Diana Oviedo-Vargas, Ph.D., grew up in a rural town in Costa Rica and was drawn to the Stroud Center because of its long-term research in Costa Rica.

Water Science Careers: Biogeochemistry

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Michael Gentile describes his work as a biogeochemistry research technician at Stroud™ Water Research Center.

Diana Oviedo-Vargas, Ph.D.

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Assistant Research Scientist

Assessing chromophoric dissolved organic matter (CDOM) distribution, stocks, and fluxes in Apalachicola Bay using combined field, VIIRS ocean color, and model observations

1024 681 Stroud Water Research Center

Joshi, I.D., E.J. D’Sa , C.L. Osburn, T.S. Bianchi, D.S. Ko, D. Oviedo-Vargas, A.R. Arellano, and N.D. Ward. 2017. Remote Sensing of Environment 191:359–372.

Variation of organic matter quantity and quality in streams at Critical Zone Observatory watersheds

1024 681 Stroud Water Research Center

Miller, M.P., E.W. Boyer, D.M. McKnight, M.G. Brown, R.S. Gabor, C.T. Hunsaker, L. Iavorivska, S. Inamdar, D.W. Johnson, L.A. Kaplan, H. Lin, W.H. McDowell, and J.N. Perdrial. 2016. Water Resources Research 52(10):8202–8216.

The Peru Project

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A scientific research and environmental education project in the headwaters of the Amazon in Peru funded by the Gordon and Betty Moore Foundation.

Long-Term Research in Environmental Biology: Costa Rica

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A study of small to intermediate size streams in the Área de Conservación Guanacaste in Costa Rica, with the backdrop of a natural and successional mosaic.