Professor Tetzlaff is an individual who has pursued a research vision in hydrology which integrates insights from both field and modelling approaches. Research has been undertaken with the basic aim of understanding the spatial and temporal variability of how catchments function hydrologically at different scales; understanding the physical processes that generate stream flow, and the way these processes influence the hydrochemistry and hydroecology of streams. This has explored an interdisciplinary interface that seeks to understand the interaction between physical and biological processes in catchments and river systems to aid understanding of the sensitivity and ability of catchments to mediate implications of climate change. She possesses modelling experience which spans a spectrum from the application of simple conceptual models to more complex semi-distributed ones. Novel to her research is the incorporation of tracer data into hydrological models in order to assess appropriate model complexity and structures. She also pursued a strong focus on international inter-catchment comparison; using insights from different geographical environments to synthesise a more holistic understanding of hydrological and ecological function. Tetzlaff is currently re-focusing her research to ecohydrological investigations in the temperate biomes and hydroclimate of Central Europe and more anthropogenically influenced landscapes.

She was awarded a prestigious ERC grant in 2013. She is also the Editor-in-Chief of Hydrological Processes, (one of the top ranking journals in the ISI Water Resources subject area, and the flagship journal in experimental hydrology). She is a Fellow of the American Geophysical Union (AGU; since 2018); a Fellow of the Royal Society of Edinburgh RSE (since 2017); Fellow (since 2020) and Honorary Fellow (since 2019) of the Geological Society of America GSA and a Fellow of the European Academy of Sciences (since 2022). Between 2013-2017, she was a member of the Royal Society of Edinburgh, Young Academy. She also serves on a number of prestigious international committees as an invited member. Beyond all of these accomplishments, Prof Tetzlaff is an ardent supporter of early-career scientists, postdoctoral fellows, and PhD students. Regularly, she runs seminars on “Women in Geosciences” as a mentor for early career scientists. Her goal is to mentor the next generation working in hydrological and wider natural science and engineering.