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The Cluster Spatio-Temporal Analysis of Field Fluctuations (Staff) Experiment

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The Cluster and Phoenix Missions

Abstract

The Spatio-Temporal Analysis of Field Fluctuations (STAFF) experiment is one of five experiments which together comprise the Wave Experiment Consortium (WEC). STAFF consists of a three-axis search coil magnetometer to measure magnetic fluctuations at frequencies up to 4 kHz, and a spectrum analyser to calculate in near-real time aboard the spacecraft, the complete auto- and cross-spectral matrices using the three magnetic and two electric components of the electromagnetic field. The magnetic waveform at frequencies below either 10 Hz or 180 Hz is also transmitted. The sensitivity of the search coil is adapted to the phenomena theo be studied: the values 3 × 10-3 nT Hz-1/2 and 3 × 10-5 nT Hz-1/2 are achieved respectively at 1 Hz and 100 Hz. The dynamic range of the STAFF instruments is about 96 dB in both waveform and spectral power, so as to allow the study of waves near plasma boundaries. Scientific objectives of the STAFF investigations, particularly those requiring four point measurements, are discussed. Methods by which the wave data will be characterised are described with emphasis on those specific to four-point measurements, including the use of the Field Energy Distribution function.

The erratum of this chapter is available at http://dx.doi.org/10.1007/978-94-011-5666-0_24

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Authors and Affiliations

  1. CETP/UVSQ, Vélizy, France

    N. Cornilleau-Wehrlin, P. Chauveau, S. Louis, A. Meyer, J. M. Nappa, S. Perraut, L. Rezeau, P. Robert, A. Roux & C. De Villedary

  2. Observatoire de Paris, Meudon, France

    Y. De Conchy, L. Friel, C. C. Harvey, D. Hubert, C. Lacombe, R. Manning & F. Wouters

  3. LPCE/CNRS, Orléans, France

    F. Lefeuvre, M. Parrot, J. L. Pinçon & B. Poirier

  4. CEPHAG, Grenoble, France

    W. Kofman

  5. Observatoire Midi-Pyrénées, Toulouse, France

    P. Louarn

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  1. N. Cornilleau-Wehrlin
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  2. P. Chauveau
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  3. S. Louis
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  4. A. Meyer
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  5. J. M. Nappa
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  6. S. Perraut
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  7. L. Rezeau
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  8. P. Robert
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  9. A. Roux
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  10. C. De Villedary
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  14. D. Hubert
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  1. Solar System Division, Space Science Department, ESA/ESTEC, Noordwijk, the Netherlands

    C. P. Escoubet  & R. Schmidt  & 

  2. Institute of Geophysics and Planetary Physics, University of Los Angeles, USA

    C. T. Russell

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Cornilleau-Wehrlin, N. et al. (1997). The Cluster Spatio-Temporal Analysis of Field Fluctuations (Staff) Experiment. In: Escoubet, C.P., Russell, C.T., Schmidt, R. (eds) The Cluster and Phoenix Missions. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5666-0_5

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