Zobrazeno 1 - 10
of 15
pro vyhledávání: '"N. P. Meredith"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract The plasma density is one of the most fundamental quantities of any plasma yet measuring it in space is exceptionally difficult when the density is low. Measurements from particle detectors are contaminated by spacecraft photoelectrons and m
Externí odkaz:
https://doaj.org/article/56e09e39a97841889c8ef98ab0741ea1
Autor:
R. T. Desai, M. P. Freeman, J. P. Eastwood, J. W. B. Eggington, M. O. Archer, Y. Y. Shprits, N. P. Meredith, F. A. Staples, I. J. Rae, H. Hietala, L. Mejnertsen, J. P. Chittenden, R. B. Horne
Publikováno v:
Geophysical Research Letters, Vol 48, Iss 16, Pp n/a-n/a (2021)
Abstract The magnetopause marks the outer edge of the Earth's magnetosphere and a distinct boundary between solar wind and magnetospheric plasma populations. In this study, we use global magnetohydrodynamic simulations to examine the response of the
Externí odkaz:
https://doaj.org/article/a3abc73c3cd64fe09d1bfc1b91e2f71a
Publikováno v:
Annales Geophysicae, Vol 32, Pp 1059-1071 (2014)
Wave particle interactions play an important role in controlling the dynamics of the radiation belts. The purpose of this study is to estimate how variations in the plasma density can affect diffusion rates resulting from interactions between chor
Externí odkaz:
https://doaj.org/article/28ee88380c8f40ae82c468ba85caa219
Publikováno v:
Nonlinear Processes in Geophysics, Vol 12, Iss 6, Pp 993-1001 (2005)
The dynamic behaviour of the outer electron radiation belt makes this area of geo-space a candidate for the concept of self-organized criticality. It is shown here that frequency distributions of measured outer electron radiation belt data are well-r
Externí odkaz:
https://doaj.org/article/cb387020e1c44c74bfd84037fb5462d2
Autor:
N. P. Meredith, R. B. Horne, D. Summers, R. M. Thorne, R. H. A. Iles, D. Heynderickx, R. R. Anderson
Publikováno v:
Annales Geophysicae, Vol 20, Pp 967-979 (2002)
We use plasma wave and electron data from the Combined Release and Radiation Effects Satellite (CRRES) to investigate the viability of a local stochastic electron acceleration mechanism to relativistic energies driven by gyroresonant interactio
Externí odkaz:
https://doaj.org/article/5b30afd556bb40a8ad82cf8a32545b82
Publikováno v:
Annales Geophysicae, Vol 20, Pp 957-965 (2002)
The relativistic electron response in the outer radiation belt during magnetic storms has been studied in relation to solar wind and geomagnetic parameters during the first six months of 1995, a period in which there were a number of recurrent
Externí odkaz:
https://doaj.org/article/5a0958448bed489abbb4bb82c5d24bbe
The banded structure of Electromagnetic Ion Cyclotron (EMIC) wave spectra and their resonant interactions with radiation belt electrons depend on the cold ion composition. However, there is a great deal of uncertainty in the composition in the inner
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ac19c34b1c66d67bc4ee4ae8d6c79ee
Wiley Online Library
Wiley Online Library
Autor:
P. A. Bernhardt, M. Hua, J. Bortnik, Q. Ma, P. T. Verronen, M. P. McCarthy, D. L. Hampton, M. Golkowski, M. B. Cohen, D. K. Richardson, A. D. Howarth, H. G. James, N. P. Meredith
Publikováno v:
Journal of geophysical research. Space physics, vol 127, iss 6
Ground-based very low frequency (VLF) transmitters located around the world generate signals that leak through the bottom side of the ionosphere in the form of whistler mode waves. Wave and particle measurements on satellites have observed that these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b6118430e7ba7a058ac365562cbc73e
https://doi.org/10.1029/2022ja030358
https://doi.org/10.1029/2022ja030358
Autor:
S. D. Walton, C. Forsyth, I. J. Rae, N. P. Meredith, J. K. Sandhu, M.‐T. Walach, K. R. Murphy
Publikováno v:
Journal of Geophysical Research: Space Physics. 127
The near-relativistic electron population in the outer Van Allen radiation belt is highly dynamic and strongly coupled to geomagnetic activity such as storms and substorms, which are driven by the interaction of the magnetosphere with the solar wind.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80cc56a42c255b5ea617b8578453248e
https://doi.org/10.1029/2021ja030069
https://doi.org/10.1029/2021ja030069
Publikováno v:
Journal of Geophysical Research
Energetic electrons (≥50 keV) are injected into the slot region (2 < L < 4) between the inner and outer radiation belts during the early recovery phase of geomagnetic storms. Enhanced convection from the plasma sheet can account for the storm-time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::ddcb3abdc34095acf35163f7210d682c
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1478021
https://gfzpublic.gfz-potsdam.de/pubman/item/item_1478021