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Design and application of digital filters for the Graf-Askania Gss2, No. 11 sea gravity meter

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Abstract

With knowledge of the response characteristics of the Graf-Askania Gss2, No. 11 gravity meter it has been possible to design a digital filter to correct for the attenuation and time lag caused by the heavy magnetic damping of the beam. Other filters have also been designed to ensure that all parameters related to the measurement of gravity at sea have a similar cut-off frequency. The filters are able to operate in an on-line reduction mode if required. The method has been used on data recorded at sea to illustrate attenuation and time lag corrections and its suitability in rough weather.

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Author notes

  1. D. I. Black

    Present address: Organic House, I.C.I., P.O. Box No. 2, Billingham, Teesside, UK

Authors and Affiliations

  1. Dept. of Geodesy and Geophysics, University of Cambridge, Madingley Rise, Cambridge, England

    A. P. Stacey

  2. National Institute of Oceanography, Wormley, Surrey, England

    M. J. R. Fasham

  3. Dept. of Geodesy and Geophysics, University of Cambridge, Madingley Rise, Cambridge, England

    D. I. Black & R. A. Scrutton

Authors
  1. A. P. Stacey
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  2. M. J. R. Fasham
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  3. D. I. Black
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  4. R. A. Scrutton
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Stacey, A.P., Fasham, M.J.R., Black, D.I. et al. Design and application of digital filters for the Graf-Askania Gss2, No. 11 sea gravity meter. Mar Geophys Res 1, 220–232 (1971). https://doi.org/10.1007/BF00305295

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  • DOI: https://doi.org/10.1007/BF00305295

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