EGU21-3178
https://doi.org/10.5194/egusphere-egu21-3178
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Validation of Aeolus winds using radiosonde observations and NWP model equivalents

Anne Martin1, Martin Weissmann2, Alexander Geiß1, Oliver Reitebuch3, and Alexander Cress4
Anne Martin et al.
  • 1Ludwig-Maximilians-Universität, Meteorologisches Institut, München, Germany
  • 2Universität Wien, Institut für Meteorologie und Geophysik, Wien, Austria
  • 3Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
  • 4Deutscher Wetterdienst (DWD), Offenbach am Main, Germany

Aeolus is a European Space Agency (ESA) Earth Explorer mission, launched on 22 August 2018 as part of the Living Planet Programme. Providing atmospheric wind profiles on a global basis, the Earth Explorer mission is expected to demonstrate improvements in the quality of numerical weather prediction (NWP). A crucial prerequisite for the use of meteorological observations in NWP data assimilation systems is a detailed characterization of the quality to minimize systematic observation errors. As part of the German initiative EVAA (Experimental Validation and Assimilation of Aeolus Observations) validation and monitoring activities for Aeolus are performed using collocated radiosonde measurements and NWP forecast equivalents from two different global models, the ICOsahedral Nonhydrostatic model (ICON) of DeutscherWetterdienst (DWD) and the European Centre for Medium-Range Weather Forecast (ECMWF) Integrated Forecast System(IFS) model, as reference data. Systematic differences and bias dependencies are investigated and estimates for the Aeolus instrumental error are determined. Furthermore, impact experiments using the global ICON model are analyzed.    



How to cite: Martin, A., Weissmann, M., Geiß, A., Reitebuch, O., and Cress, A.: Validation of Aeolus winds using radiosonde observations and NWP model equivalents, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-3178, https://doi.org/10.5194/egusphere-egu21-3178, 2021.

Displays

Display file