In:
Annals of Geophysics, Instituto Nazionale di Geofisica e Vulcanologia, INGV, Vol. 56, No. 1 ( 2013-04-18)
Abstract:
〈 p 〉 The present geomagnetic field is chaotic and ergodic: chaotic because it can no longer be predicted beyond around 6 years; and ergodic in the sense that time averages correspond to phase-space averages. These properties have already been deduced from complex analyses of observatory time series in a reconstructed phase space and from global predicted and definitive models of differences in the time domain. These results imply that there is a strong necessity to make repeat-station magnetic surveys more frequently than every 5 years. This, in turn, will also improve the geomagnetic field secular variation models. This report provides practical examples and case studies. 〈 /p 〉 〈 p 〉 〈 /p 〉
Type of Medium:
Online Resource
ISSN:
2037-416X
,
1593-5213
Language:
English
Publisher:
Instituto Nazionale di Geofisica e Vulcanologia, INGV
Publication Date:
2013
detail.hit.zdb_id:
2410939-3
SSG:
16,13
