Contact Disclaimer
Annales Geophysicae
Copernicus.org Home EGU Copernicus Publications Copernicus Meetings
  Home  
  General Information  
  Submission  
  Special Issues  
  Evaluation  
  Production  
  Subscription  
  Online Library  
  Recent Papers  
  Volumes and Issues  
  Special Issues  
  Topical Library  
  Library Search  
  Title and Author Search  
  Volumes and Issues      Contents of Issue 10/12      Special Issue     
Ann. Geophys., 19, 1303-1354, 2001
www.ann-geophys.net/19/1303/2001/
© European Geosciences Union 2001


First multispacecraft ion measurements in and near the Earth’s magnetosphere with the identical Cluster ion spectrometry (CIS) experiment

H. Rème1, C. Aoustin1, J. M. Bosqued1, I. Dandouras1, B. Lavraud1, J. A. Sauvaud1, A. Barthe1, J. Bouyssou1, Th. Camus1, O. Coeur-Joly1, A. Cros1, J. Cuvilo1, F. Ducay1, Y. Garbarowitz1, J. L. Medale1, E. Penou1, H. Perrier1, D. Romefort1, J. Rouzaud1, C. Vallat1, D. Alcaydé1, C. Jacquey1, C. Mazelle1, C. d’Uston1, E. Möbius2, L. M. Kistler2, K. Crocker2, M. Granoff2, C. Mouikis2, M. Popecki2, M. Vosbury2, B. Klecker3, D. Hovestadt3, H. Kucharek3, E. Kuenneth3, G. Paschmann3, M. Scholer3, N. Sckopke (†)3, E. Seidenschwang3, C. W. Carlson4, D. W. Curtis4, C. Ingraham4, R. P. Lin4, J. P. McFadden4, G. K. Parks4, T. Phan4, V. Formisano5, E. Amata5, M. B. Bavassano-Cattaneo5, P. Baldetti5, R. Bruno5, G. Chionchio5, A. Di Lellis5, M. F. Marcucci5, G. Pallocchia5, A. Korth6, P. W. Daly6, B. Graeve6, H. Rosenbauer6, V. Vasyliunas6, M. McCarthy7, M. Wilber7, L. Eliasson8, R. Lundin8, S. Olsen8, E. G. Shelley9, S. Fuselier9, A. G. Ghielmetti9, W. Lennartsson9, C. P. Escoubet10, H. Balsiger11, R. Friedel12, J.-B. Cao13, R. A. Kovrazhkin14, I. Papamastorakis15, R. Pellat16, J. Scudder17, and B. Sonnerup18
1CESR, BP 4346, 31028 Toulouse Cedex 4, France
2UNH, Durham, USA
3MPE, Garching, Germany
4SSL, Berkeley, USA
5IFSI, Roma, Italy
6MPAE, Lindau, Germany
7U. W., Seattle, USA
8IRF, Kiruna, Sweden
9Lockheed, Palo Alto, USA
10ESA/ESTEC, Noordwijk, the Netherlands
11Bern University, Bern, Switzerland
12Los Alamos National Laboratory NM, USA
13CCSAR, Beijing, China
14IKI, Moscow, Russia
15University of Crete, Greece
16Commissariat `a l’Energie Atomique, Paris, France
17University of Iowa, USA
18Dartmouth College, NH, USA

Abstract. On board the four Cluster spacecraft, the Cluster Ion Spectrometry (CIS) experiment measures the full, three-dimensional ion distribution of the major magnetospheric ions (H+, He+, He++, and O+) from the thermal energies to about 40 keV/e. The experiment consists of two different instruments: a COmposition and DIstribution Function analyser (CIS1/CODIF), giving the mass per charge composition with medium (22.5°) angular resolution, and a Hot Ion Analyser (CIS2/HIA), which does not offer mass resolution but has a better angular resolution (5.6°) that is adequate for ion beam and solar wind measurements. Each analyser has two different sensitivities in order to increase the dynamic range. First tests of the instruments (commissioning activities) were achieved from early September 2000 to mid January 2001, and the operation phase began on 1 February 2001. In this paper, first results of the CIS instruments are presented showing the high level performances and capabilities of the instruments. Good examples of data were obtained in the central plasma sheet, magnetopause crossings, magnetosheath, solar wind and cusp measurements. Observations in the auroral regions could also be obtained with the Cluster spacecraft at radial distances of 4–6 Earth radii. These results show the tremendous interest of multispacecraft measurements with identical instruments and open a new area in magnetospheric and solar wind-magnetosphere interaction physics.

Key words. Magnetospheric physics (magnetopause, cusp and boundary layers; magnetopheric configuration and dynamics; solar wind - magnetosphere interactions)


Full Article in PDF (5111 KB)
  Library Search ANGEO  
       
  Special Services  
  Printer-friendly Version  
  Bookmark  
  Download Acrobat Reader  
  News  
  ISI Impact Factor: 1.427 (2007)
 
Annales Geophysicae is launching a new section: AnGeo Communicates
 
© Copernicus 2004–2006