Core field acceleration pulse as a common cause of the 2003 and 2007 geomagnetic jerks

Geophysical Research Letters

Volumn 37, Issue 7, 2010, Pages

  Chulliat, A ^a   Thbault, E ^a   Hulot, G ^a  

^a INSTITUT DE PHYSIQUE DU GLOBE DE PARIS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

CORE DYNAMICS; EARTH'S SURFACE; FIELD ACCELERATION; GEOMAGNETIC FIELDS; GEOMAGNETIC JERKS; MAXIMUM POWER; SATELLITE DATA; SECOND DERIVATIVES; SOUTH ATLANTIC; SPHERICAL HARMONICS;

HARMONIC ANALYSIS;

GEOMAGNETISM;

CORE (PLANETARY); GEOMAGNETIC FIELD; SATELLITE DATA; SECULAR VARIATION;

EID: 77950466856     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2009GL042019     Document Type: Article

References (14)

1. Alexandrescu, M., D. Gibert, G. Hulot, J.-L. Le Mouël, and G. Saracco (1996), Worldwide wavelet analysis of geomagnetic jerks, J. Geophys. Res., 101, 21,975-21,994.
2. Bloxham, J., S. Zatman, and M. Dumberry (2002), The origin of geomagnetic jerks, Nature, 420, 65-68. (Pubitemid 35291439)
3. Chulliat, A., G. Hulot, and L. R. Newitt (2010), Magnetic flux expulsion from the core as a possible cause of the unusually large acceleration of the North magnetic pole during the 1990s, J. Geophys. Res., doi:10.1029/ 2009JB007143, in press.
4. Constable, C. G., R. L. Parker, and P. Stark (1993), Geomagnetic field models incorporating frozen-flux constraints, Geophys. J. Int., 113, 419-433. (Pubitemid 23392302)
5. Courtillot, V., J. Ducruix, and J.-L. Le Mouël (1978), Sur une accélération récente de la variation séculaire du champ magnétique terrestre, C. R. Acad. Sci., Ser. D, 287, 1095-1098.
6. Desjardins, E., E. Dormy, and E. Grenier (2001), Instability of Ekman-Hartmann boundary layers, with application to the fluid flow near the core-mantle boundary, Phys. Earth Planet. Inter., 123, 15-26. (Pubitemid 32257543)
7. Jackson, A., and C. C. Finlay (2007), Geomagnetic Secular Variation and Its Applications to the Core, in Treatise on Geophysics, vol.5, edited by M. Kono and G. Schubert, pp. 147-193, Elsevier, New York.
8. Le Huy, M., M. Alexandrescu, G. Hulot, and J.-L. Le Mouël (1998), On the characteristics of successive geomagnetic jerks, Earth Planets Space, 50, 723-732. (Pubitemid 29154249)
9. Macmillan, S. (1996), A geomagnetic jerk for the early 1990's, Earth Planet. Sci. Lett, 137, 189-192. (Pubitemid 126397678)
10. Mandea, M., E. Bellanger, and J.-L. Le Mouël (2000), A geomagnetic jerk for the end of the 20th century?, Earth Planet. Sci. Lett, 183, 369-373. (Pubitemid 32109095)
11. Olsen, N., and M. Mandea (2007), Investigation of a secular variation impulse using satellite data: The 2003 geomagnetic jerk, Earth Planet. Sci. Lett, 255, 94-105. (Pubitemid 46268096)
12. Olsen, N., M. Mandea, T. J. Sabaka, and L. Tøffner-Clausen (2009), CHAOS-2\A geomagnetic field model derived from one decade of continuous satellite data, Geophys. J. Int., 179, 1477-1487.
13. Peltier, A., and A. Chulliat (2010), On the feasibility of promptly producing quasi-definitive magnetic observatory data, Earth Planets Space, 62, e5-e8, doi:10.5047/eps.2010.02.002.
14. Wardinski, I., R. Holme, S. Asari, and M. Mandea (2008), The 2003 geomagnetic jerk and its relation to the core surface flows, Earth Planet. Sci. Lett, 267, 468-481