Showing 1 - 19 results of 19 for search '"THEMIS"', query time: 0.06s Refine Results
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    Impact Angle Control of Local Intense dB/dt Variations During Shock‐Induced Substorms by Denny M. Oliveira, James M. Weygand, Eftyhia Zesta, Chigomezyo M. Ngwira, Michael D. Hartinger, Zhonghua Xu, Barbara L. Giles, Daniel J. Gershman, Marcos V. D. Silveira, Vítor M. Souza

    Published 2021-12-01
    “…The same trend is observed in dB/dt variations recorded by THEMIS ground magnetometers. THEMIS all‐sky imager data show a fast and clear poleward auroral expansion in the first case, which does not clearly occur in the second case. …”
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    Auroral Drivers of Large dB∕dt During Geomagnetic Storms by Ying Zou, Caleb Dowell, Banafsheh Ferdousi, Larry R. Lyons, Jiang Liu

    Published 2022-11-01
    “…Using coordinated observations from THEMIS and Geophysical Institute Magnetometer Array magnetometers and THEMIS all‐sky imagers, we statistically examine large dB∕dt intervals during storms from 2015 to 2016. …”
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    الفهرس الموحد للمکتبات المدرسیة المصریة :دراسة حالة by د. عبد الرحیم محمد عبد الرحیم

    Published 2016-07-01
    “…The study aimed to analyses and evaluate the union catalog in theschool libraries in Egypt, and recognizing its perception’s degree, and itscomprehension for the resources that the libraries have, and defining theproblems and the obstacles that face the librarians in preparing the unioncatalog for school libraries in Egypt and by the case study method I’vereached with the study lots of results and the more important ones of themis that the common schools libraries have reached 2.19% of the total of theEgyptian governmental schools in preparing the union catalog, and theinvolved institutes reached 2.29% only of the total of the AZHAR’sinstitutes in preparing the union catalog due to, that there’s no legal, formalform for the schools libraries corpus Egypt, and there’s also the work withthe union catalog gests done depending on the volunteers’ effort.…”
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    The Geoeffectiveness of Solar Wind Current Sheets and Its Modulation by Foreshock Ions by Boyi Wang, Yi Wang, Terry Z. Liu, Vassilis Angelopoulos

    Published 2022-06-01
    “…Abstract We examined the evolution of 34 solar wind bifurcated current sheets in the magnetosheath and their magnetospheric responses, using the in‐situ observations of the THEMIS probes and the GOES satellites. The role of foreshock ions in that process is also determined. …”
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    Field‐Aligned Currents Induced by Magnetopause Motions Under Pressure Perturbations by Boyi Wang, Xinyu Xu, Yukitoshi Nishimura, Yen‐Jung Wu, Zhonghua Xu, Primož Kajdic, De‐Sheng Han, Yi Wang, Xueshang Feng

    Published 2025-01-01
    “…Abstract In this work, we identified 65 auroral arcs that stretched out from the equatorward boundary of auroral oval with azimuthal extensions, and investigated their upstream triggering, by utilizing conjunctions between the THEMIS probes and the all‐sky imagers at AGO P1 and South Pole stations. …”
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