Publication Date:
2017-04-04
Description:
Concepts of information theory are applied to global models of the geomagnetic field B of the last century. The
temporal behavior of information content suggests that B is in a chaotic state with characteristic times close to those
of its westward drift and of the convective overturn in the outer core and the secular variation shows a comparable
characteristic time of predictability. The main implication of these results is the suggestive hypothesis that a possible
geomagnetic reversal or excursion is currently in progress.
Description:
Published
Description:
269-275
Description:
partially_open
Keywords:
information theory
;
Kolmogorov entropy
;
geomagnetic field
;
geomagnetic reversals
;
04. Solid Earth::04.05. Geomagnetism::04.05.02. Geomagnetic field variations and reversals
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
Format:
353808 bytes
Format:
445 bytes
Format:
application/pdf
Format:
text/html
