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Masahisa Sugiura

Researcher at Goddard Space Flight Center

Publications -  63
Citations -  3305

Masahisa Sugiura is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Magnetosphere & Earth's magnetic field. The author has an hindex of 29, co-authored 63 publications receiving 3252 citations.

Papers
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The theta aurora

TL;DR: A comprehensive review of the characteristics of theta aurora as revealed from four imaging efforts with the DE 1 and 2 satellites can be found in this article, where the dominant electrons and ions and the associated flow directions into and out of the various regions of the pole, similarities between the transpolar arc and the auroral oval are discussed.
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OGO-A magnetic field observations

TL;DR: Magnetic field observations by OGO-A, with profiles of bow shock and magnetopause encounters as mentioned in this paper, were used to study the magnetic field of the bow shock. But the results were limited.
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IMF By ‐dependent plasma flow and Birkeland currents in the dayside magnetosphere: 1. Dynamics Explorer observations

TL;DR: In this paper, a By-dependent global convection model for southward IMF was proposed, which can account for observations of a nearly stationary (in local time) convection "throat", a sunward-antisunward convection reversal zone at the polar-cap boundary in both the morning and afternoon quadrants, the morphology of solar-wind ion injection and transport in the mid-altitude polar cusp, and the Bydependent dawn-dusk asymmetry of polar cap electron fluxes.
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An improved model equatorial electrojet with a meridional current system

TL;DR: In this article, a model equatorial electrojet by spherical harmonic expansion for geomagnetic field was constructed by using spherical harmonic expansions for equatorial equatorial electric vehicles. But the model was not tested.
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Upwelling O + Ion Source Characteristics

TL;DR: In this paper, a typical upwelling event is analyzed using Dynamic Explorer 1 satellite retarding ion mass spectrometer (RIMS) observations of the low-energy plasma, and energetic ion and local electromagnetic field observations.