Results 11 to 20 of about 1,568 (212)
Living Reviews in Solar Physics, 2005 We review the current status of local helioseismology, covering both theoretical and observational results. After a brief introduction to solar oscillations and wave propagation through inhomogeneous media, we describe the main techniques of local ...
Aaron Birch, Laurent Gizon
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Helioseismology and solar abundances [PDF]
Physics Reports, 2008 To appear in Physics Reports.
Basu, Sarbani, Antia, H. M.
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Journal of Astrophysics and Astronomy, 2005 The sun being the nearest star, seismic observations with high spatial resolution are possible, thus providing accurate measurement of frequencies of about half million modes of solar oscillations covering a wide range of degree.
Antia, H. M.
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Data Compression for Helioseismology [PDF]
, 2022 Efficient data compression will play an important role for several upcoming and planned space missions involving helioseismology, such as Solar Orbiter. Solar Orbiter, to be launched in October 2018, will be the next space mission involving helioseismology. The main characteristic of Solar Orbiter lies in its orbit. The spacecraft will have an inclined
Löptien, Björn +4 more
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Forecasting Continuum Intensity for Solar Active Region Emergence Prediction Using Transformers
Journal of Geophysical Research: Machine Learning and ComputationEarly and accurate prediction of solar active region (AR) emergence is crucial for space weather forecasting. Building on established Long Short‐Term Memory (LSTM) based approaches for forecasting the continuum intensity decrease associated with AR ...
Jonas Tirona +7 more
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Recent Developments in Local Helioseismology [PDF]
Solar Physics, 2008 Local helioseismology is providing new views of subphotospheric flows from supergranulation to global-scale meridional circulation and for studying structures and dynamics in the quiet Sun and active regions. In this short review we focus on recent developments, and in particular on a number of current issues, including the sensitivity of different ...
Thompson, M.J., Zharkov, S.
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Space WeatherA demonstrated failure mode for operational solar flare forecasting is the inability to forecast flares that occur near, or just beyond, the solar limb.
K. D. Leka +5 more
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The future of helioseismology [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractHelioseismology has provided us with the unique knowledge of the interior structure and dynamics of the Sun, and the variations with the solar cycle. However, the basic mechanisms of solar magnetic activity, formation of sunspots and active regions are still unknown.
Alexander G. Kosovichev
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The Phanerozoic climate. [PDF]
Ann N Y Acad Sci, 2023 We review the long‐term climate variations during the last 540 million years (Phanerozoic Eon). We first summarize the geological and geochemical datasets available for reconstruction of long‐term climate variations. We then explore the main drivers of climate that appear to explain a large fraction of these climatic oscillations. The first is the long‐
Shaviv NJ, Svensmark H, Veizer J.
europepmc +2 more sources
Seismology of active regions: Current status and perspectives
Frontiers in Astronomy and Space Sciences, 2023 The goal of helioseismology is to provide accurate information about the Sun’s interior from the observations of the wave field at its surface. In the last three decades, both global and local helioseismology studies have made significant advances and ...
Sushanta Tripathy
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