Showing 161 - 180 results of 239 for search '"geospace"', query time: 0.09s Refine Results
  1. 161

    Geomagnetic and Cosmic Ray Activity Effect on Heart Rate during the Solar Cycle 24 by Maria-Christina Papailiou, Sofia Ioannidou, Anastasia Tezari, Helen Mavromichalaki

    Published 2024-01-01
    “…Numerous studies examine the reaction of the cardiovascular, nervous, and other functional systems to variations observed in geospace. These studies examine the behavior of human physiological parameters not only during different levels of activity of the Sun and in the interplanetary space (from no activity to remarkably intense activity) but also through geomagnetic activity storms and Forbush decreases. …”
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    Grape Version 1: First prototype of the low-cost personal space weather station receiver by John Gibbons, Kristina Collins, David Kazdan, Nathaniel Frissell

    Published 2022-04-01
    “…Crowd sourced data collection among the international community of amateur radio operators and shortwave listeners has great potential for addressing problems of under-sampling in the geospace system. Quantitative Doppler measurements of high frequency (HF) time standard stations, used in bottom side ionospheric sensing, have been accomplished using existing radio hardware belonging to volunteers in distributed campaigns. …”
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  4. 164

    Resolving the tidal weather of the thermosphere using GDC by Jens Oberheide, Stone M. Gardner, Mukta Neogi

    Published 2023-09-01
    “…NASA’s Geospace Dynamics Constellation (GDC) mission is a six satellite constellation to make in situ measurements of important ionospheric and thermospheric variables to better understand the processes that govern Earth’s near space environment. …”
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  5. 165

    Strong variations of gamma-ray and atmospheric electric field during various meteorological conditions by observations in Yakutsk and Tiksi by Toropov Anatoliy, Starodubtzev Sergey, Kozlov Vladimir

    Published 2018-01-01
    “…The results of a study strong increase in gamma-ray background in the surface layer of the atmosphere during precipitation and near thunderstorms in Yakutsk (based on the Cosmic Ray Spectrometer of the Institute of Cosmic Rays of the Siberian Branch of the Russian Academy of Sciences) and Tiksi (Polar Geospace Observatory of the IKFIA SB RAS) are present in this paper. …”
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    INTERPLANETARY NETWORK LOCALIZATIONS OF KONUS SHORT GAMMA-RAY BURSTS by Vanderspek, Roland K, Ricker, George R

    Published 2015
    “…Between the launch of the Global Geospace Science Wind spacecraft in 1994 November and the end of 2010, the Konus-Wind experiment detected 296 short-duration gamma-ray bursts (including 23 bursts which can be classified as short bursts with extended emission). …”
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    Spatiotemporal Companion Pattern (STCP) Mining of Ships Based on Trajectory Features by Chunhui Zhou, Guangya Liu, Liang Huang, Yuanqiao Wen

    Published 2023-02-01
    “…To detect the spatiotemporal traveling pattern of ships from massive spatiotemporal trajectory data and to understand the movement law of group ships, this article proposes a feature-driven approach for STCP mining that consists of (1) generating the grid index via the rasterizing of geospace and characterizing trajectory points via the spatiotemporal trajectory grid sequences (STTGSs) of ships; (2) designing filtering rules with the constraints of range, time and distance to construct a candidate set for ship STCP mining; and (3) measuring the STTGS similarity of the associated ships and setting the confidence threshold to realize spatiotemporal companion mining. …”
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  12. 172

    Unveiling the combined effects of neutral dynamics and electrodynamic forcing on dayside ionosphere during the 3–4 February 2022 “SpaceX” geomagnetic storms by Geetashree Kakoti, Mala S. Bagiya, Fazlul I. Laskar, Dong Lin

    Published 2023-11-01
    “…Results from Multiscale Atmosphere-Geospace Environment (MAGE) model simulations elucidated storm-induced equatorward thermospheric wind which caused the strong morning counter electrojet by generating the disturbance dynamo electric field. …”
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    Multi-Scale Ionospheric Anomalies Monitoring and Spatio-Temporal Analysis during Intense Storm by Na Cheng, Shuli Song, Wei Li

    Published 2021-02-01
    “…The ionosphere is a significant component of the geospace environment. Storm-induced ionospheric anomalies severely affect the performance of Global Navigation Satellite System (GNSS) Positioning, Navigation, and Timing (PNT) and human space activities, e.g., the Earth observation, deep space exploration, and space weather monitoring and prediction. …”
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  15. 175

    Latitudinal dependence of ground VLF transmitter wave power in the inner magnetosphere by Zhiyang Xia, Lunjin Chen, Wenyao Gu, Richard B. Horne, Yoshizumi Miyoshi, Yoshiya Kasahara, Atsushi Kumamoto, Fuminori Tsuchiya, Satoko Nakamura, Masahiro Kitahara, Iku Shinohara

    Published 2023-02-01
    “…In this study, we use approximately 3 years of observations from the Exploration of energization and Radiation in Geospace (ERG/Arase) satellite to statistically study the meridional distribution of wave power from very-low-frequency (VLF) ground transmitters in the inner magnetosphere and analyze the corresponding latitudinal dependence. …”
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  16. 176

    A Time-efficient, Data-driven Modeling Approach for Predicting the Geomagnetic Impact of Coronal Mass Ejections by Souvik Roy, Dibyendu Nandy

    Published 2023-01-01
    “…Thus our method has the potential to significantly extend the time window for predictability—an outstanding challenge in geospace environment forecasting—if early predictions of near-Earth CME flux rope structures based on near-Sun observations are available as inputs. …”
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