Results 21 to 30 of about 2,347 (211)

Monitoring the plasmapause using geomagnetic field line resonances [PDF]

, 2004
This paper discusses the use of ground magnetometer data to derive plasma mass density profiles of the dayside plasmapause region with spatial and temporal resolution in the range 0.15-0.4 R-E and 20-60 min.
Menk, F.W., Mann, I.R., Waters, C.L., Clilverd, M.A., Smith, A.J., Milling, D.K.   +5 more
core   +1 more source

Sudden commencement event of 17 April 2002: Aspects of the geomagnetic response at low latitudes [PDF]

, 2005
An analysis of a sudden commencement (SC) manifestation reveals a significant contribution of the polar current system which influences the long-term behavior of the H component at low-latitude ground stations located in the subsolar sector. A transition
Zhang, T.L., P. Di Giuseppe, M. Piersanti, M. Vellante, Villante, U., T. L. Zhang, Di Giuseppe, P., W. Magnes, Vellante, M., Magnes, W., Villante U., Piersanti, M.   +11 more
core   +1 more source

Simulating the Responses of the Magnetosphere–Ionosphere System to the IMF By Reversal

Frontiers in Physics, 2022
The interplanetary magnetic field (IMF) By component can cause asymmetric features in the magnetosphere-ionosphere system and influence the electromagnetic energy input.
Fan Gong, Fan Gong, Yiqun Yu, Yiqun Yu, Jinbin Cao, Jinbin Cao   +5 more
doaj   +1 more source

The driving mechanisms of particle precipitation during the moderate geomagnetic storm of 7 January 2005 [PDF]

, 2007
International audienceThe arrival of an interplanetary coronal mass ejection (ICME) triggered a sudden storm commencement (SSC) at ~09:22 UT on the 7 January 2005. The ICME followed a quiet period in the solar wind and interplanetary magnetic field (IMF).
N. Longden, Kavanagh, A. J., A. J. Kavanagh, F. Honary, J. Manninen, Honary, F., Manninen, J., Longden, N.   +7 more
core   +1 more source

A novel geomagnetic assimilation method of vector geomagnetic data

Results in Physics, 2021
Geomagnetic field has important applications in Earth Science, earthquake prediction, aerospace, national defense construction and other areas. Therefore, accurate modeling of regional geomagnetic field is very important.
Lirong Shen, Guang Sun, Wei Zhai
doaj   +1 more source

Particle precipitation during ICME-driven and CIR-driven geomagnetic storms [PDF]

, 2008
Interplanetary coronal mass ejections (ICME) and corotating interaction regions (CIR) alter the parameters of the solar wind and interplanetary magnetic field (IMF) that affect conditions in the Earth's magnetosphere and particle precipitation in the ...
N. Longden, Honary, Farideh, Denton, Michael H., F. Honary, Longden, N., M. H. Denton   +5 more
core   +1 more source

Multi-instrument observations of a large scale pc4 pulsation [PDF]

, 2008
On 7 November 2005 various ground based and spaced based instruments registered five wave packets with frequencies in the Pc4 range. The most prominent of the five wave packets was observed in ground based magnetometer data spanning almost all ...
Tim K. Yeoman (7583066), Clausen, L.B.N., Clausen, L. B. N., L. B. N. Clausen (7594130), Lucek, E. A., R. Behlke, R. Behlke (7594133), T. K. Yeoman, E. A. Lucek, Behlke, R., Behlke, Rico, E. A. Lucek (7594136), Lucek, E.A., Yeoman, T. K., Yeoman, T.K., L. B. N. Clausen   +15 more
core   +1 more source

The role of 3-D geomagnetic induction in the determination of the ionospheric currents from the ground geomagnetic data [PDF]

Annales Geophysicae, 2005
The geomagnetic field variations measured at the surface of the Earth are composed of both internal and external parts. The external field arises from the sources in the magnetosphere and ionosphere, whereas the internal field is generated by the ...
A. Pulkkinen, M. Engels
doaj   +1 more source

Modeling of regional magnetic field applying spherical functions: theoretical aspect

Геофизический журнал, 2019
Observation of geomagnetic field, measurement of its components values and establishment on their base models of geomagnetic field as well as geomagnetic mapping are the main trend of geomagnetic studies.
Yu. P. Sumaruk, L. M. Yankiv-Vitkovska, B. B. Dzuman   +2 more
doaj   +1 more source

An examination of inter-hemispheric conjugacy in a subauroral polarization stream [PDF]

, 2012
During geomagnetically disturbed conditions the midlatitude ionosphere is subject to intense poleward directed electric fields in the dusk-midnight sector.
Clausen, L.B.N., Freeman, M.P., Clausen, L. B. N., Ruohoniemi, J. M., Kunduri, B.S.R., Talaat, E. R., Baker, J.B.H., Baker, J. B. H., Thomas, E.G., Grocott, A., Kunduri, B. S. R., Talaat, E.R., Freeman, M. P., Thomas, E. G.   +13 more
core   +1 more source