Physics – Space Physics
Scientific paper
2010-10-20
Geophysical Research Letters, 37, L24103, 2010
Physics
Space Physics
Geophysical Research Letters (accepted); 3 Figures
Scientific paper
10.1029/2010GL045175
On 5 April 2010 an interplanetary (IP) shock was detected by the Wind spacecraft ahead of Earth, followed by a fast (average speed 650 km/s) IP coronal mass ejection (ICME). During the subsequent moderate geomagnetic storm (minimum Dst = -72 nT, maximum Kp=8-), communication with the Galaxy 15 satellite was lost. We link images from STEREO/SECCHI to the near-Earth in situ observations and show that the ICME did not decelerate much between Sun and Earth. The ICME flank was responsible for a long storm growth phase. This type of glancing collision was for the first time directly observed with the STEREO Heliospheric Imagers. The magnetic cloud (MC) inside the ICME cannot be modeled with approaches assuming an invariant direction. These observations confirm the hypotheses that parts of ICMEs classified as (1) long-duration MCs or (2) magnetic-cloud-like (MCL) structures can be a consequence of a spacecraft trajectory through the ICME flank.
Biernat Helfried K.
Farrugia Charles J.
Galvin Antoinette B.
Leitner Martin
Liu Ying
No associations
LandOfFree
STEREO and Wind observations of a fast ICME flank triggering a prolonged geomagnetic storm on 5-7 April 2010 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with STEREO and Wind observations of a fast ICME flank triggering a prolonged geomagnetic storm on 5-7 April 2010, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and STEREO and Wind observations of a fast ICME flank triggering a prolonged geomagnetic storm on 5-7 April 2010 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-717169