Statistical behavior of foreshock Langmuir waves observed by the Cluster wideband data plasma wave receiver

K. Sigsbee; C. A. Kletzing; D. A. Gurnett; J. S. Pickett; A. Balogh; E. Lucek

doi:10.5194/angeo-22-2337-2004

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Statistical behavior of foreshock Langmuir waves observed by the Cluster wideband data plasma wave receiver

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Statistical behavior of foreshock Langmuir waves observed by the Cluster wideband data plasma wave receiver

K. Sigsbee, C. A. Kletzing, D. A. Gurnett, J. S. Pickett, A. Balogh and E. Lucek

Annales geophysicae (1988), Vol.22(7), pp.2337-2344

07/14/2004

DOI: 10.5194/angeo-22-2337-2004

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Abstract

We present the statistics of Langmuir wave amplitudes in the Earth's foreshock using Cluster Wideband Data (WBD) Plasma Wave Receiver electric field waveforms from spacecraft 2, 3 and 4 on 26 March 2002. The largest amplitude Langmuir waves were observed by Cluster near the boundary between the foreshock and solar wind, in agreement with earlier studies. The characteristics of the waves were similar for all three spacecraft, suggesting that variations in foreshock structure must occur on scales greater than the 50-100km spacecraft separations. The electric field amplitude probability distributions constructed using waveforms from the Cluster WBD Plasma Wave Receiver generally followed the log-normal statistics predicted by stochastic growth theory for the event studied. Comparison with WBD receiver data from 17 February 2002, when spacecraft 4 was set in a special manual gain mode, suggests non-optimal auto-ranging of the instrument may have had some influence on the statistics.

Earth Sciences

Ocean, Atmosphere

Sciences of the Universe

Details

Title: Subtitle: Statistical behavior of foreshock Langmuir waves observed by the Cluster wideband data plasma wave receiver
Creators: K. Sigsbee - University of Iowa
C. A. Kletzing - Department of Physics and Astronomy [Iowa City]
D. A. Gurnett - Department of Physics and Astronomy [Iowa City]
J. S. Pickett - Department of Physics and Astronomy [Iowa City]
A. Balogh - Space and Atmospheric Physics Group [London]
E. Lucek - Space and Atmospheric Physics Group [London]
Resource Type: Journal article
Publication Details: Annales geophysicae (1988), Vol.22(7), pp.2337-2344
DOI: 10.5194/angeo-22-2337-2004
ISSN: 0992-7689
eISSN: 1432-0576
Publisher: European Geosciences Union
Language: English
Date published: 07/14/2004
Academic Unit: Physics and Astronomy
Record Identifier: 9984428683602771

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