Physics – Geophysics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm13b1609s&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SM13B-1609
Physics
Geophysics
[2740] Magnetospheric Physics / Magnetospheric Configuration And Dynamics, [2788] Magnetospheric Physics / Magnetic Storms And Substorms, [3235] Mathematical Geophysics / Persistence, Memory, Correlations, Clustering, [3238] Mathematical Geophysics / Prediction
Scientific paper
We examine the expanded substorm dataset compiled by Frey [J. Geophys. Res., 109, A10304, 2004] to evaluate the question of internal vs external triggering of substorms [see Hsu and McPherron, J. Geophys. Res., 107, 1398, 2002; Morley and Freeman, Geophys. Res. Lett., 34, L08104, 2006] using transfer entropy as a measure of causality. Transfer entropy is particularly useful to identify causal relationships in data sets because: (a) it is highly directional, (b) it includes higher order, nonlinear correlations, and (c) it can distinguish between variables that are correlated because of a common driver and variables that are causally correlated. We discuss how these properties of transfer entropy are useful for analysis of space data sets, and we examine the extent to which solar wind fluctuations are causally related to substorm onset.
Echim Marius M.
Johnson Jesse
Snider R.
Wing Simon
No associations
LandOfFree
INTERNAL VS EXTERNAL SUBSTORM TRIGGERS: TRANSFER ENTROPY AS A MEASURE OF CAUSALITY 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 INTERNAL VS EXTERNAL SUBSTORM TRIGGERS: TRANSFER ENTROPY AS A MEASURE OF CAUSALITY, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and INTERNAL VS EXTERNAL SUBSTORM TRIGGERS: TRANSFER ENTROPY AS A MEASURE OF CAUSALITY will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1877559