EGU23-14575, updated on 12 Apr 2023
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Dust orientation measurements

Alexandra Tsekeri1, Vasillis Amiridis1, Spyros Metallinos1, Peristera Paschou1,2, Nikos Siomos3, Ioanna Tsikoudi1,4, Dimitra Kouklaki5, and Eleni Marinou1
Alexandra Tsekeri et al.
  • 1IAASARS, National Observatory of Athens, Athens, Greece
  • 2Laboratory of Atmospheric Physics, Physics Department, Aristotle University of Thessaloniki, Greece
  • 3Fakultät für Physik, Meteorologisches Institut, Ludwig-Maximilians-Universität, Munich, Germany
  • 4Department of Physics, Section of Environmental Physics-Meteorology, National and Kapodistrian University of Athens, Athens, Greece
  • 5National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece

Abstract. Dust orientation is an ongoing investigation in recent years (Ulanowski et al., 2007). Its potential proof will be a paradigm shift for dust remote sensing, invalidating the currently used simplifications of randomly-oriented particles. Vertically-resolved measurements of dust orientation can be acquired with the new polarization lidar “WALL-E”, designed to target the off-diagonal elements of the backscatter matrix which are non-zero only when the particles are oriented (Tsekeri et al., 2021). Herein, we present first measurements of oriented dust particles acquired during the ESA Aeolus Cal/Val Campaign “ASKOS” at Cabo Verde (June and September 2022).


Acknowledgments: This research was supported by D-TECT (Grant Agreement 725698) funded by the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program and PANGEA4CalVal (Grant Agreement 101079201) funded by European Union’s Horizon Widera 2021 Access program.




Tsekeri, A., et al.: Polarization lidar for detecting dust orientation: system design and calibration, Atmos. Meas. Tech., 14, 7453–7474, 2021.

Ulanowski, Z., et al.: Alignment of atmospheric mineral dust due to electric field, Atmos. Chem. Phys., 7, 6161–6173, 2007.

How to cite: Tsekeri, A., Amiridis, V., Metallinos, S., Paschou, P., Siomos, N., Tsikoudi, I., Kouklaki, D., and Marinou, E.: Dust orientation measurements, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-14575,, 2023.

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