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S. Eriksson 1 , W.-L. Teh 1 , and J. T. Gosling 1

S. Eriksson 1 , W.-L. Teh 1 , and J. T. Gosling 1 1 LASP, University of Colorado, Boulder, CO, USA. Multi-spacecraft Comparison of ICME Flux Rope Signatures. Contact : eriksson@lasp.colorado.edu. A Very Small Geomagnetic Storm Associated With an ICME/Cloud.

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S. Eriksson 1 , W.-L. Teh 1 , and J. T. Gosling 1

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  1. S. Eriksson1, W.-L. Teh1 , and J. T. Gosling1 1LASP, University of Colorado, Boulder, CO, USA Multi-spacecraft Comparison of ICME Flux Rope Signatures Contact: eriksson@lasp.colorado.edu

  2. A Very Small Geomagnetic Storm Associated With an ICME/Cloud

  3. Reconnection Exhausts Associated with an ICME/Cloud-Driven Disturbance Field Shear Angle = 15˚ 3-s plasma data Exhaust 92-ms field data 11 exhausts in a 1.5-day interval. 5 exhausts within the cloud and 1 at trailing edge. 3 of cloud exhausts occurred at local field shear angles < 18˚!

  4. 19 Nov 2007GSE Positions

  5. B BGSE Clock V N T Pdyn 19-22 Nov 2007ACE

  6. B BGSE Clock V N T Beta Pdyn 19-22 Nov 2007STEREO-B IMF clock angle definition: theta=arctan(BY/BZ) theta=0 (northward BZ) theta=90 (positive BY)

  7. B BGSE Clock V N T Beta Pdyn 19-22 Nov 2007STEREO-A

  8. http://www-ssc.igpp.ucla.edu/~jlan/STEREO/Level3/STEREO_Level3_ICME.pdfhttp://www-ssc.igpp.ucla.edu/~jlan/STEREO/Level3/STEREO_Level3_ICME.pdf

  9. G-S Reconstruction of a Magnetic Cloud Observed by Helios

  10. Proposed Analysis • Perform GS-like and MHD reconstructions of three flux rope events in 2007 for different STEREO intra-spacecraft separations. • Compare magnetic field and plasma structure at different positions relative to flux rope. Emphasis on IMF clock angle.

  11. B BX GSE BY GSE BZ GSE Clock V N T Pdyn 19-22 Nov 2007Multi-spacecraftcomparisonrelative to ACEST-A - 16 hrsST-B + 3.5 hrs

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