Results 11 to 20 of about 1,260 (214)

Local Helioseismology [PDF]

open access: yesLiving 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 ...
L Gizon, A C Birch, Gizon Laurent
exaly   +5 more sources

Helioseismology [PDF]

open access: yesJournal 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.
core   +2 more sources

Data Compression for Helioseismology [PDF]

open access: yes, 2015
Die effiziente Kompression von Daten wird eine wichtige Rolle für mehrere bevorste- hende und geplante Weltraummissionen spielen, die Helioseismologie betreiben werden, wie beispielsweise Solar Orbiter.
Löptien, Björn, Löptien, B.
core   +3 more sources

The future of helioseismology [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
Helioseismology 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 ...
Alexander G. Kosovichev
core   +2 more sources

Addressing Known Challenges in Solar Flare Forecasting I: Limb‐Flare Prediction With a 4π Full‐Heliosphere Framework

open access: yesSpace Weather
A 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
doaj   +2 more sources

Helioseismology with PICARD [PDF]

open access: yesJournal of Physics: Conference Series, 2013
6 pages, 6 figures, Eclipse on the Coral Sea: Cycle 24 Ascending, GONG 2012 / LWS/SDO-5 / SOHO 27, November 12 - 16, 2012, Palm Cove, Queensland.
Appourchaux, Thierry   +12 more
core   +5 more sources

Helioseismology

open access: yes, 2007
Helioseismology is the study of solar interior using frequencies of solar oscillations. Frequencies of nearly half a million resonant modes of oscillations have been measured.
Antia, H. M.
core   +2 more sources

The Phanerozoic climate. [PDF]

open access: yesAnn 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

open access: yesFrontiers 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
doaj   +1 more source

Sub-surface plasma flows and the flare productivity of solar active regions

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The extreme space weather conditions resulting from high energetic events likes solar flares and Coronal Mass Ejections demand for reliable space weather forecasting.
B. Lekshmi   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy