ENAC Seminar Series by Dr. Annika Linkhorst
13:15 – 14:15 – Dr. Annika Linkhorst
Postdoctoral Researcher, Federal Institute of Hydrology, Koblenz, Germany
Anthropogenic perturbation of inland water carbon cycling – catchers or pitchers?
Human influence has warmed atmosphere, ocean and land. In consequence, ecosystems all over the world are changing. While inland waters cover only a small fraction of the total land area, they are often biogeochemical hotspots, and play an important role in the global carbon cycle by receiving, transforming, storing, emitting, and transporting carbon. As a result of human activities, the role that inland waters play in climate forcing and the global cycling of carbon has undergone substantial transitions. Inland waters will continue to change in response to climate, leading to the drying of lakes in some parts of the world and newly appearing lakes in other parts. In addition, an increasing number of impoundments is being built worldwide, which can further challenge climate forcing, as impoundments accumulate carbon in their sediments and emit large amounts of methane to the atmosphere. Drying of lakes might be another potent source of greenhouse gases, and we yet have little knowledge on the evolution of newly appearing lakes from melting ice covers. To fully understand the changes these ecosystems undergo in the warming world and how we can manage them in response to our changing climate, we need to better understand their chemical, biological and physical processes.
Short bio:
Annika Linkhorst was born 1987 near Hamburg, Germany. She studied Environmental Sciences and received her B.Sc. from Leuphana University, Lüneburg, in 2010, and her M.Sc. from ETH Zurich, Switzerland, in 2014. Her studies were accompanied by research stays in Brazil, Germany and Korea, where she studied the carbon composition in subterranean estuaries. She pursued her Ph.D. at the Limnology department of Uppsala University, Sweden, with extensive field work in Brazil in close collaboration with the Federal University of Juiz de Fora. She defended her Ph.D. thesis, “Greenhouse Gas Dynamics in Tropical Reservoirs: Spatial and Temporal Dynamics”, in 2019. During 2020, she worked on the carbon budget of pristine peatland with the University of Quebec in Montreal, Canada. Since 2021, she has been a Researcher at the Federal Institute of Hydrology in Koblenz, Germany, studying greenhouse gas dynamics and the mixing and dispersion of water masses in large rivers. Her main research interests lie in understanding how human activities influence inland water greenhouse gas dynamics, where her key expertise is the quantification of methane ebullition in tropical reservoirs, and its spatio-temporal upscaling. She works at the threshold of chemistry, physics, biology and geology in waterbodies of different types in different climates.
Postdoctoral Researcher, Federal Institute of Hydrology, Koblenz, Germany
Anthropogenic perturbation of inland water carbon cycling – catchers or pitchers?
Human influence has warmed atmosphere, ocean and land. In consequence, ecosystems all over the world are changing. While inland waters cover only a small fraction of the total land area, they are often biogeochemical hotspots, and play an important role in the global carbon cycle by receiving, transforming, storing, emitting, and transporting carbon. As a result of human activities, the role that inland waters play in climate forcing and the global cycling of carbon has undergone substantial transitions. Inland waters will continue to change in response to climate, leading to the drying of lakes in some parts of the world and newly appearing lakes in other parts. In addition, an increasing number of impoundments is being built worldwide, which can further challenge climate forcing, as impoundments accumulate carbon in their sediments and emit large amounts of methane to the atmosphere. Drying of lakes might be another potent source of greenhouse gases, and we yet have little knowledge on the evolution of newly appearing lakes from melting ice covers. To fully understand the changes these ecosystems undergo in the warming world and how we can manage them in response to our changing climate, we need to better understand their chemical, biological and physical processes.
Short bio:
Annika Linkhorst was born 1987 near Hamburg, Germany. She studied Environmental Sciences and received her B.Sc. from Leuphana University, Lüneburg, in 2010, and her M.Sc. from ETH Zurich, Switzerland, in 2014. Her studies were accompanied by research stays in Brazil, Germany and Korea, where she studied the carbon composition in subterranean estuaries. She pursued her Ph.D. at the Limnology department of Uppsala University, Sweden, with extensive field work in Brazil in close collaboration with the Federal University of Juiz de Fora. She defended her Ph.D. thesis, “Greenhouse Gas Dynamics in Tropical Reservoirs: Spatial and Temporal Dynamics”, in 2019. During 2020, she worked on the carbon budget of pristine peatland with the University of Quebec in Montreal, Canada. Since 2021, she has been a Researcher at the Federal Institute of Hydrology in Koblenz, Germany, studying greenhouse gas dynamics and the mixing and dispersion of water masses in large rivers. Her main research interests lie in understanding how human activities influence inland water greenhouse gas dynamics, where her key expertise is the quantification of methane ebullition in tropical reservoirs, and its spatio-temporal upscaling. She works at the threshold of chemistry, physics, biology and geology in waterbodies of different types in different climates.
Practical information
- General public
- Invitation required
- This event is internal
Organizer
- ENAC
Contact
- Victoria Sanjuan