Search Results - "Ridley, A. J."

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  1. 1

    MAGNETOSPHERIC STRUCTURE AND ATMOSPHERIC JOULE HEATING OF HABITABLE PLANETS ORBITING M-DWARF STARS by Cohen, O, Drake, J J, Glocer, A, GARRAFFO, C, POPPENHAEGER, K, Bell, J M, Ridley, A J, Gombosi, T I

    Published in The Astrophysical journal (20-07-2014)
    “…We study the magnetospheric structure and the ionospheric Joule Heating of planets orbiting M-dwarf stars in the habitable zone using a set of…”
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  2. 2

    The Response of the Ionosphere‐Thermosphere System to the 21 August 2017 Solar Eclipse by Cnossen, I., Ridley, A. J., Goncharenko, L. P., Harding, B. J.

    “…We simulated the effects of the 21 August 2017 total solar eclipse on the ionosphere‐thermosphere system with the Global Ionosphere Thermosphere Model (GITM)…”
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  3. 3

    The global ionosphere–thermosphere model by Ridley, A.J., Deng, Y., Tóth, G.

    “…The recently created global ionosphere–thermosphere model (GITM) is presented. GITM uses a three-dimensional spherical grid that can be stretched in both…”
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    Ionospheric control of the magnetosphere: conductance by RIDLEY, A. J, GOMBOSI, T. I, DEZEEUW, D. L

    Published in Annales geophysicae (1988) (2004)
    “…It is well known that the ionosphere plays a role in determining the global state of the magnetosphere. The ionosphere allows magnetospheric currents to close,…”
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  6. 6

    Modeling Study of the Geospace System Response to the Solar Wind Dynamic Pressure Enhancement on 17 March 2015 by Ozturk, D. S., Zou, S., Ridley, A. J., Slavin, J. A.

    “…The global magnetosphere‐ionosphere‐thermosphere system is intrinsically coupled and susceptible to external drivers such as solar wind dynamic pressure…”
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  7. 7

    Rho GTPases and cell migration by Ridley, A J

    Published in Journal of cell science (01-08-2001)
    “…Cell migration involves dynamic and spatially regulated changes to the cytoskeleton and cell adhesion. The Rho GTPases play key roles in coordinating the…”
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  8. 8

    Role of vertical ion convection in the high-latitude ionospheric plasma distribution by Deng, Y., Ridley, A. J.

    “…We use the Global Ionosphere‐Thermosphere Model (GITM) to simulate the ionospheric reaction to a simple step change of the high‐latitude forcing terms during…”
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  9. 9

    Simulation of non-hydrostatic gravity wave propagation in the upper atmosphere by Deng, Y., Ridley, A. J.

    Published in Annales geophysicae (1988) (24-04-2014)
    “…The high-frequency and small horizontal scale gravity waves may be reflected and ducted in non-hydrostatic simulations, but usually propagate vertically in…”
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  10. 10

    Exploring the efficacy of different electric field models in driving a model of the plasmasphere by Ridley, A. J., Dodger, A. M., Liemohn, M. W.

    “…The dynamics of the plasmasphere are strongly controlled by the inner magnetospheric electric field. In order to capture realistically the erosion of the…”
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  11. 11

    Effects of seasonal changes in the ionospheric conductances on magnetospheric field-aligned currents by Ridley, A. J.

    Published in Geophysical research letters (01-03-2007)
    “…Through the seasons of the year, the ionospheric potential doesn't change significantly, while the solar driven conductance changes dramatically. This means…”
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  12. 12

    Alfvén wings at Earth's magnetosphere under strong interplanetary magnetic fields by RIDLEY, A. J

    Published in Annales geophysicae (1988) (01-01-2007)
    “…A number of recent studies have shown that the upstream Mach number may play a significant role in the energy transfer between the solar wind and the…”
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  13. 13

    Exploring sources of magnetospheric plasma using multispecies MHD by Welling, D. T., Ridley, A. J.

    “…A persistent, unresolved problem in terrestrial magnetospheric physics is determining the dominant source and associated entry mechanism for plasma in the…”
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  14. 14

    Dependence of neutral winds on convection E-field, solar EUV, and auroral particle precipitation at high latitudes by Deng, Y., Ridley, A. J.

    “…We use the Global Ionosphere Thermosphere Model (GITM) to investigate the thermospheric neutral winds and their relationship to the high‐latitude ionospheric…”
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  15. 15

    Transpolar potential saturation models compared by Siscoe, G., Raeder, J., Ridley, A. J.

    “…We compare four explanations of transpolar potential saturation: (1) the magnetic field at the stagnation point weakens, thereby limiting magnetic…”
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  16. 16

    A new formulation for the ionospheric cross polar cap potential including saturation effects by RIDLEY, A. J

    Published in Annales geophysicae (1988) (21-12-2005)
    “…It is known that the ionospheric cross polar cap potential (CPCP) saturates when the interplanetary magnetic field (IMF) Bz becomes very large. Few studies…”
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  17. 17

    Polar cap index comparisons with AMIE cross polar cap potential, electric field, and polar cap area by Ridley, A. J., Kihn, E. A.

    Published in Geophysical research letters (16-04-2004)
    “…The polar cap index (PCI) has been shown to be quite useful as an index of the electrodynamic processes within the high‐latitude ionosphere. Here we use…”
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  18. 18

    Numerical considerations in simulating the global magnetosphere by RIDLEY, A. J, GOMBOSI, T. I, SOKOLOV, I. V, TOTH, G, WELLING, D. T

    Published in Annales geophysicae (1988) (27-08-2010)
    “…Magnetohydrodynamic (MHD) models of the global magnetosphere are very good research tools for investigating the topology and dynamics of the near-Earth space…”
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  19. 19

    Systematic review of learning curves in robot‐assisted surgery by Soomro, N. A., Hashimoto, D. A., Porteous, A. J., Ridley, C. J. A., Marsh, W. J., Ditto, R., Roy, S.

    Published in BJS open (01-02-2020)
    “…Background Increased uptake of robotic surgery has led to interest in learning curves for robot‐assisted procedures. Learning curves, however, are often poorly…”
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  20. 20

    A statistical study of BRIs (SMCs), isolated substorms, and individual sawtooth injections by DeJong, A. D., Ridley, A. J., Cai, X., Clauer, C. R.

    “…There are many similarities and differences in the solar wind drivers during three of the main modes of convection in the magnetosphere (isolated substorms,…”
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