EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Using satellite geodesy for carbon cycle research 

Alexandra Klemme1, Thorsten Warneke1, Heinrich Bovensmann1, Matthias Weigelt2, Jürgen Müller2, Justus Notholt1, and Claus Lämmerzahl3
Alexandra Klemme et al.
  • 1University of Bremen, Institute of Environmental Physics, Germany
  • 2Leibniz Universität Hannover, Institute of Geodesy, Germany
  • 3University of Bremen, Centre of Applied Space Technology and Microgravity, Germany

To assess realistic climate change mitigation strategies, it is important to research and understand the global carbon cycle. Carbon dioxide (CO2) and methane (CH4) are the two most important anthropogenic greenhouse gases. Their atmospheric concentrations are affected by anthropogenic emissions as well as exchange fluxes with oceans and the terrestrial biosphere. For the prediction of future atmospheric CO2 and CH4 concentrations, it is critical to understand how the natural exchange fluxes respond to a changing climate. One of the factors that impact these fluxes is the changing hydrological cycle.        
In our project, we combine information about the hydrological cycle from geodetic satellites (e.g. GRACE & GRACE-FO) with carbon cycle observations from other satellites (e.g. TROPOMI & OCO-2). Specifically, we plan to investigate the impact of a changing water level in soils on CH4 emissions from wetlands and on the photosynthetic CO2 uptake of plants. Details of our approach and first results will be presented.

How to cite: Klemme, A., Warneke, T., Bovensmann, H., Weigelt, M., Müller, J., Notholt, J., and Lämmerzahl, C.: Using satellite geodesy for carbon cycle research , EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7583,, 2022.


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