Publications related to the GRACE Missions (no abstracts)

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Accelerometer Data Transplant for Future Satellite Gravimetry

Romeshkani, Mohsen, Müller, Jürgen, Ebadi, Sahar, Knabe, Annike, and Schilling, Manuel, 2026. Accelerometer Data Transplant for Future Satellite Gravimetry. Earth and Space Science, 13(1):e2025EA004417, doi:10.1029/2025EA00441710.22541/essoar.174585025.56008616/v1.

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@ARTICLE{2026ESS...1304417R,
       author = {{Romeshkani}, Mohsen and {M{\"u}ller}, J{\"u}rgen and {Ebadi}, Sahar and {Knabe}, Annike and {Schilling}, Manuel},
        title = "{Accelerometer Data Transplant for Future Satellite Gravimetry}",
      journal = {Earth and Space Science},
     keywords = {gravity field, quantum accelerometer, cold atom interferometer (CAI), GRACE, data transplant},
         year = 2026,
        month = jan,
       volume = {13},
       number = {1},
          eid = {e2025EA004417},
        pages = {e2025EA004417},
     abstract = "{Accurate monitoring of the Earth's gravity field is crucial for
        understanding mass redistribution processes related to climate
        change, hydrology, and geodynamics. The Gravity Recovery and
        Climate Experiment (GRACE) and its successor, GRACE Follow-On
        (GRACE-FO), have provided invaluable satellite gravimetry data
        through low-low satellite-to-satellite tracking (LL-SST).
        However, the precision of gravity field recovery is
        significantly affected not only by data gaps in the
        accelerometer (ACC) measurements, but also by potential failures
        or limitations in their performance. To mitigate these issues,
        accelerometer data transplantation has been employed, leveraging
        the similarity in non-gravitational accelerations experienced by
        both satellites. This study presents an in-depth assessment of
        transplant noise and evaluates advanced accelerometer
        configurations, including Cold Atom Interferometry (CAI)
        accelerometers and hybrid electrostatic-quantum accelerometer
        setups for future satellite gravimetry missions. Through closed-
        loop LL-SST simulations, we compare four different accelerometer
        configurations, ranging from conventional electrostatic
        accelerometers (EAs) to fully hybrid CAI-EA setups. Results
        indicate that a dual hybrid accelerometer configuration offers
        the highest accuracy in gravity field recovery, while a
        transplant-based hybrid approach significantly enhances the
        performance of non-gravitational force modeling without
        requiring additional instrumentation. The findings underscore
        the potential of quantum accelerometery and transplant
        methodologies for future satellite gravimetry missions, offering
        a cost-effective solution to improve gravity field recovery,
        while benefitting from new sensor types.}",
          doi = {10.1029/2025EA00441710.22541/essoar.174585025.56008616/v1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2026E&SS...1304417R},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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