Other
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007angeo..25.1011s&link_type=abstract
Annales Geophysicae, Volume 25, Issue 4, 2007, pp.1011-1024
Other
17
Scientific paper
Oscillating magnetic field lines are frequently observed by spacecraft in the terrestrial and other planetary magnetospheres. The CLUSTER mission is a very suitable tool to further study these Alfvén waves as the four CLUSTER spacecraft provide for an opportunity to separate spatial and temporal structures in the terrestrial magnetosphere. Using a large scaled configuration formed by the four spacecraft we are able to detect a poloidal Ultra-Low-Frequency (ULF) pulsation of the magnetic and electric field in order to analyze its temporal and spatial structures. For this purpose the measurements are transformed into a specific field line related coordinate system to investigate their specific amplitude pattern depending on the path of the CLUSTER spacecraft across oscillating field lines. These measurements are then compared with modeled spacecraft observations across a localized poloidal wave resonator in the dayside plasmasphere. A detailed investigation of theoretically expected poloidal eigenfrequencies allows us to specify the observed 16 mHz pulsation as a third harmonic oscillation. Based on this we perform a case study providing a clear identification of wave properties such as an spatial scale structure of about 0.67 RE, the azimuthal wave number m≈30, temporal evolution, and energy transport in the detected ULF pulsations.
Blomberg Lars G.
Eriksson T. I. P.
Fornacon Karl-Heinz
Glassmeier Karl-Heintz
Pierrard Viviane
No associations
LandOfFree
Spatial and temporal characteristics of poloidal waves in the terrestrial plasmasphere: a CLUSTER case study 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 Spatial and temporal characteristics of poloidal waves in the terrestrial plasmasphere: a CLUSTER case study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial and temporal characteristics of poloidal waves in the terrestrial plasmasphere: a CLUSTER case study will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1040919