Thank you Yara Rossi for allowing us to be part of your wonderful and very valuable work for those planning to use rotation wisely !

EGU25-6411 | ECS | Posters on site | SM3.1

Quantifying Rotation-Induced Errors in Near-Field Seismic Recordings
Yara Rossi, Felix Bernauer, Chin-Jen Lin, Frédéric Guattari, and Baptiste Pinot
Tue, 29 Apr, 14:00–15:45 (CEST)   Hall X1 | X1.119

Quantifying Rotation-Induced Errors in Near-Field Seismic Recordings

Yara Rossi*1,2, Felix Bernauer1, Chin-Jen Lin3, Frédéric Guattari4, Baptiste Pinot5

  1. Department of Earth and Environmental Sciences, Ludwig-Maximilians Universität in München, Germany
  2. Department of Earth Sciences, University of Oregon, USA,
  3. Institute of Earth Sciences, Academia Sinica, Taiwan
  4. MAÅGM, France
  5. Institut Supérieur de l’Aéronautique et de l’Espace (ISAE-SUPAERO), France
    *yara.rossi@lmu.de

“Recent development of rotational seismometers allows for detailed measurements of wave field gradients, providing information previously unattainable. Knowledge about the full wavefield is imperative to understand sensor errors from ground-motion. It is well-known from navigation solutions that rotational data requires proper processing to be physically meaningful. This study focuses on investigating and quantifying two errors affecting the recording of rotations: 1) misorientation of the sensor to the local coordinate system called attitude error and 2) changing projection of the Earth’s spin in the sensor coordinate system – Earth’s spin leakage.”