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Diana Oviedo Vargas, Ph.D.

800 800 Stroud Water Research Center
Diana Oviedo-Vargas, Ph.D.

Associate Research Scientist, Principal Investigator

Watershed Biogeochemistry Group

Contact

doviedo@stroudcenter.org
tel. 610-268-2153, ext. 1263
970 Spencer Road, Avondale, PA 19311

https://orcid.org/0000-0001-9333-0962

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Interests and Expertise

Diana Oviedo Vargas’s research seeks to improve understanding of the elemental cycles in streams, rivers, and estuaries, and how they are linked to each other, the water cycle, and the terrestrial ecosystem at surface and subsurface levels.

Some of her current research interests include the nitrogen and phosphorus transport and transformation in fluvial systems and how human activities such as agriculture and urbanization can affect these processes; the quantification and characterization of the multiple carbon pools and fluxes in aquatic ecosystems and their role in global climate change; and the effects of emerging contaminants, like PFAS and pesticide residues, on the health of streams and rivers.

Oviedo Vargas’s expertise includes aquatic ecosystems in temperate and tropical zones, spanning the full river continuum — from headwaters to large rivers to estuaries and the coastal ocean.

Education

  • Ph.D., environmental sciences, Indiana University, Bloomington, Indiana.
  • M.S., environmental sciences, Indiana University, Bloomington, Indiana.
  • B.S., chemistry, University of Costa Rica, San José, Costa Rica.

Professional Experience

  • Associate research scientist, Stroud Water Research Center, 2025–present.
  • Assistant research scientist, Stroud Water Research Center, 2017–2025.
  • Postdoctoral research associate, Department of Marine Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, 2013–2017.
  • Associate instructor, School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana, 2011–2013.
  • Teaching assistant, Analytical and organic chemistry laboratories, University of Costa Rica, San José, Costa Rica, 2004–2007.
  • Research assistant, Natural Products Research Center, University of Costa Rica, San José, Costa Rica, 2004–2007.

Publications

No posts found.

See publications by all Stroud Center authors

Seasonal trends in surface pCO2 and air‐sea CO2 fluxes in Apalachicola Bay, Florida, from VIIRS ocean color

Joshi, I. D., N.D. Ward, E.J. D’Sa, C.L. Osburn, T.S. Bianchi, and D. Oviedo‐Vargas. 2018. Journal of Geophysical Research: Biogeosciences 123:2466–2484.

Meet Our New Scientist: Diana Oviedo-Vargas

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.
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