Results 41 to 50 of about 11,976 (273)
The Growth and Decay of Individual Sunspots and Pores
The Astrophysical JournalAn analysis of the photometric growth and decay rates of sunspots and pores was carried out. According to the Solar Dynamics Observatory/Helioseismic and Magnetic Imager data for the period 2010 May–2025 March, ≈3.5 × 10 ^5 sunspots and pores were ...
Andrei G. Tlatov
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Latitudinal Distribution of Sunspot and North-South Asymmetry Revisited [PDF]
Journal of Astronomy and Space Sciences, 2018 The solar magnetic field plays a central role in the field of solar research, both theoretically and practically. Sunspots are an important observational constraint since they are considered a discernable tracer of emerged magnetic flux tubes, providing ...
Heon-Young Chang
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Vestibular Evoked Myogenic Potentials to Diagnose Vestibular Neuritis: A Scoping Review
The Laryngoscope, EarlyView.Standardization of stimulation and recording protocols is essential to improve comparability across VEMP studies. Integrating cervical and ocular VEMPs with other vestibular tests enhances diagnostic accuracy and supports precise localization of vestibular neuritis.
Diego Piatti +5 more
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Renmin Zhujiang, 2022 In recent years,frequent extreme climate events have become the focus of attention of the world.Studying the spatiotemporal evolution of extreme climate in the Guangdong-Hong Kong-Macao Greater Bay Area is of great significance for timely and accurate ...
GUO Shan, ZHANG Dawei, WANG Yadi
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Frontiers in Astronomy and Space Sciences, 2018 We present a three-dimensional numerical model for the generation and evolution of the magnetic field in the solar convection zone, in which sunspots are produced and contribute to the cyclic reversal of the large-scale magnetic field. We then assess the
Rohit Kumar +3 more
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Relative Sunspot Number Observed from 2002 to 2011 at ButterStar Observatory [PDF]
Journal of Astronomy and Space Sciences, 2012 The ButterStar Observatory at the Dongducheon High School has been working for photographic observations of the Sun since October 16, 2002. In this study, we observed the Sun at the ButterStar observatory for 3,364 days from October 16, 2002 to December ...
Sung-Jin Oh, Heon-Young Chang
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Solar activity cycle 25: the first three years
Solar-Terrestrial Physics, 2023 We analyze features of current solar activity cycle 25 for the first three years of its development (2020–2022). Compared to cycle 24, the current cycle is shown to exceed the previous one in the number of sunspot groups (1.5 times), the number of flares
Yazev S. A. +2 more
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People and Nature, EarlyView.Abstract Longer‐term perspectives—equivalent to the lifespans of long‐lived trees—are required to fully inform perceptions of ‘naturalness’ used in woodland conservation and management. Stand‐scale dynamics of an old growth temperate woodland are reconstructed using palaeoecological data.
Annabel Everard +4 more
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Magnetic Structure of Sunspots
Living Reviews in Solar Physics, 2011 In this review we give an overview about the current state-of-knowledge of the magnetic field in sunspots from an observational point of view. We start by offering a brief description of tools that are most commonly employed to infer the magnetic field ...
Juan M. Borrero, Kiyoshi Ichimoto
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Analyzing the inter-annual variability of rainfall in the Brazilian semi-arid region
Acta Scientiarum: TechnologyThis research aims to analyze the interannual variability of rainfall and the correlation between solar cycles and teleconnections with the precipitation regime of the Intermediate Geographic Region of Caicó (IGRC), in the semiarid region of the state ...
Francisco Monteiro +2 more
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