About

Dr. Johanna Engström is an Assistant Professor in the Department of Geography at the University of Florida, with affiliate faculty positions at the Florida Climate Institute and the UF Water Institute. Her research focuses on Earth System Science, Places, Networks, & Flows, and Sustainability & Global Environmental Change. She employs a mixed methods approach to study large-scale hydroclimatology with applications for society, particularly in the context of supporting a growing human population with water, food, and energy in a sustainable manner. Her work emphasizes climate services, exploring how climate data can inform decisions related to water management and renewable energy production. Dr. Engström holds a Ph.D. in Geography from the University of Florida, earned in 2017, and has a background in Physical Geography and Ecosystem Analysis from Lund University in Sweden. Her research addresses critical issues such as drought vulnerability, the impacts of climate variability, and sustainable land use, including transforming abandoned mines into solar farms. She has contributed to understanding the decreasing water resources in the Southeastern US, wildfire dynamics in Arctic and tropical biomes, and coastal planning and management. Her academic and research activities aim to develop solutions for environmental challenges through interdisciplinary approaches.

Research topics

• Geology
• Environmental science
• Ecology
• Physical geography
• Chemistry
• Environmental chemistry
• Geography
• Atmospheric sciences
• Earth science
• Biology
• Forestry

Selected publications

• Long-Term Experimental Manipulation of Atmospheric Sulfate Deposition to a Peatland: Response of Methylmercury and Related Solute Export in Streamwater

  Environmental Science & Technology · 2022 · 7 citations

  • Environmental chemistry
  • Chemistry
  • Environmental science

  deposition declines.

  DOI

• Resolving Atmospheric Mercury Loading and Source Trends from Isotopic Records of Remote North American Lake Sediments

  Environmental Science & Technology · 2020 · 40 citations

  • Environmental science
  • Physical geography
  • Earth science

  Hg values from global emission inventories. Despite similar temporal trends among cores, the baseline isotopic values vary considerably among the different study regions, likely attributable to differences in the fractionation produced in situ as well as differing amounts of atmospherically delivered Hg. Differences among the study lakes in precipitation and watershed size provide an empirical framework for evaluating Hg isotopic signatures and global Hg cycling.

  DOI

• Anthropogenic alteration of nutrient supply increases the global freshwater carbon sink

  Science Advances · 2020 · 190 citations

  Senior authorCorresponding
  • Environmental science
  • Ecology
  • Physical geography

  freshwater emissions rising to ~30% if reservoirs are included and contributing to the residual continental C sink. Nutrient availability explains ~70% of the observed increase, while rising temperatures have a minimal effect.

  DOI

Frequent coauthors

• Edward B. Swain

  Minnesota Department of Natural Resources

  39 shared

• James E. Almendinger

  Science Museum of Minnesota

  29 shared

• Jeff D. Jeremiason

  Gustavus Adolphus College

  29 shared

• Paul E. Drevnick

  Government of Alberta

  28 shared

• Emi Ito

  University of Minnesota

  28 shared

• James P. Hurley

  23 shared

• Derek C. G. Muir

  Environment and Climate Change Canada

  22 shared

• Randall K. Kolka

  21 shared

Labs

• GeographyPI

Education

• PhD, Geography

  University of Florida

  2017

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