|
Title: |
Subsurface and Atmospheric Influences on Solar Activity
|
|
Volume: |
383
|
Year: |
2008
|
View this Volume on ADS
|
Editors: |
Howe, R.; Komm, R.W.; Balasubramaniam, K.S.; Petrie, G.J.D.
|
Synopsis: |
The 24th NSO Workshop focused on solar active regions, their origin and evolution on the sun inferred from helioseismology, magnetometry and modeling. The combination of helioseismic, observational and theoretical efforts makes it possible, for example, to follow twist and helicity of magnetic fields/flux tubes from below the solar surface through the solar atmosphere into the interplanetary medium. Helicity-loaded fields are very probably responsible for the most geoeffective solar phenomena such as coronal mass ejections and flares. The main aim of this workshop was to bring together experts in magnetometry, activity, and helioseismology, to further our understanding of solar active regions and their creation and evolution. The 1 keynote, 12 invited and 27 contributed talks as well as 9 posters combined to provide an overview of the understanding of solar active regions. The key topics for this meeting were flows around active regions: surface and below, flux emergence and cancellation, space weather and active regions: back to front, morphology of active regions and filaments, magnetic flux and magneto-acoustic waves, and influences on coronal complexity. The NSO workshop series has a strong tradition of focusing on topics of current interest in solar physics. This book is suitable for researchers and graduate students.
|
ISBN: |
978-1-58381-329-4
|
eISBN:
|
978-1-58381-330-0
|
Paper Title |
Page |
Authors |
Cover, Front Matter and Conference Photograph |
| |
Volume 383 Cover, Front Matter and Conference Photograph |
|
Howe, R.; Komm, R.W.; Balasubramaniam, K.S.; Petrie, G.J.D. |
Opening Keynote Address |
| |
Solar Active Regions: A Transition from Morphological Observations to Physical Modeling (Opening Keynote Address) |
1 |
Aschwanden, M. J. |
Part 1. Flows Around Active Regions: Surface and Below |
| |
Surface Flows From Magnetograms |
19 |
Welsch, B.T.; Fisher, G.H. |
Subsurface Flows Near Active Regions and Filaments as Determined by Local Helioseismology |
31 |
Haber, D.A. |
Large Eddy Simulation of Solar Photosphere Convection with Realistic Physics |
43 |
Ustyugov, S.D. |
On the Polar Field Distribution as Observed by SOLIS |
49 |
Raouafi, N.-E.; Harvey, J.W.; Henney, C.J. |
Part 2. Flux Emergence and Cancellation |
| |
Local Helioseismology and Magnetic Flux Emergence |
59 |
Kosovichev, A.G.; Duvall, T.L. Jr. |
Hinode Observations of Flux Emergence in Quiet and Active Regions |
71 |
Lites, B.W.; Centeno, R.; Kubo, M.; Socas-Navarro, H.; Berger, T.; Frank, Z.; Shine, R.; Tarbell, T.; Title, A.; Ichimoto, K.; Katsukawa, Y.; Tsuneta, S.; Suematsu, Y.; Shimizu, T.; Nagata, S. |
Subsurface Flows near Four Emerging Active Regions Studied with Ring-Diagram Analysis |
83 |
Komm, R.; Howe, R.; Hill, F.; Morita, S. |
Shear Flows Driven by the Lorentz Force: An Energy Source for Coronal Mass Ejections and Flares |
91 |
Manchester, W. |
In Search of the Origin of the Latitudinal Structure of the Photospheric Magnetic Field |
99 |
Gavryuseva, E. |
Automatic Active-Region Identification and Azimuth Disambiguation of the SOLIS/VSM Full-Disk Vector Magnetograms |
107 |
Georgoulis, M.K.; Raouafi, N.-E.; Henney, C.J. |
In-situ Flux Losses in Active Regions |
115 |
Sainz Dalda, A.; Martínez Pillet, V. |
Magnetic Field Vector Measurements with THEMIS |
123 |
Bommier, V.; Martínez González, M.J.; Schmieder, B.; Landi Degl’Innocenti, E. |
Part 3. Space Weather and Active Regions: Back to Front |
| |
Challenges Created by Active Regions in Global Models for Space Weather Uses |
133 |
Luhmann, J.G.; Li, Y.; Riley, P.; Arge, C.N.; Liu, Y.; deToma, G. |
Signatures of Seismic Absorption in Magnetic Regions |
141 |
Lindsey, C.; Cally, P.S. |
Calibration of the Far Side Seismic-Holography Signature of Active Regions |
155 |
González Hernández, I.; Hill, F.; Lindsey, C. |
Initiation of Solar Eruptions |
163 |
Sterling, A.C.; Moore, R.L. |
Role of Magneto-Convection in Plasma Dynamic and Energy Balance Above the Supergranular Network |
173 |
Aiouaz, T. |
GONG Synoptic Magnetogram Program: Near-real-time Coronal Magnetic Field Model |
181 |
Petrie, G.J.D.; Bolding, J.; Clark, R.; Donaldson-Hanna, K.; Harvey, J.W.; Hill, F.; Toner, C.; Wentzel, T.M. |
Part 4. Morphology of Active Regions and Filaments |
| |
Life and Death of Solar Active Regions |
191 |
van Ballegooijen, A.A. |
Magnetic Helicity, Coronal Heating and Solar Flaring Activity: A Review of the Role of Active Region Twist |
201 |
Nandy, D. |
What is the Most Important Origin of the Coronal Helicity? |
213 |
Tian, L. |
Flare Energy and Magnetic Field Variations |
221 |
Hudson, H.S.; Fisher, G.H.; Welsch, B.T. |
Temporal Variations of High-Cadence GONG+ Magnetic Field Images |
227 |
Hill, F.; Bolding, J.; Clark, R.; Donaldson-Hanna, K.; Harvey, J.W.; Petrie, G.J.D.; Toner, C.G.; Wentzel, T.M. |
Filament Substructures and their Interrelation |
235 |
Lin, Y.; Martin, S.F.; Engvold, O. |
Topological Analyses of Symmetric Eruptive Prominences |
243 |
Panasenco, O.; Martin, S.F. |
Limits to the Radiative Asymmetry of the Quiet Solar Disk |
253 |
Livingston, W.; Sheeley, N.R. Jr. |
Application of Data Assimilation Methods to Non-Linear Solar Dynamo Models |
255 |
Kitiashvili, I. |
Part 5. Magnetic Flux and Magneto-Acoustic Waves |
| |
Interaction between Magneto-Acoustic Waves and Magnetic Fields |
265 |
Crouch, A.D. |
Coronal Loop Seismology: Selective Examples |
266 |
De Moortel, I. |
Evershed Flow, Oscillations, and Sunspot Structure |
279 |
Balasubramaniam, K.S.; Pevtsov, A.A.; Olmschenk, S. |
Modeling Non-Uniform Distribution of Acoustic Sources and Wave Leakage in Sunspots |
289 |
Karchevsky, K.V.; Kosovichev, A.G. |
Recent Developments in Solar Quakes Studies |
297 |
Besliu-Ionescu, D.; Donea, A.-C.; Cally, P.; Lindsey, C. |
Helioseismic Frequency Shifts in Active Regions |
305 |
Howe, R.; Haber, D.A.; Hindman, B.W.; Komm, R.; Hill, F.; González Hernández, I. |
Part 6. Influences on Coronal Complexity |
| |
The Solar Interior-Atmospheric System |
315 |
Athay, R.G.; Low, B.C.; White, O.R. |
Connecting the Quiet-Sun Convection Zone and Corona |
327 |
Abbett, W.P. |
Solar Torsional Oscillations and Their Relationship to Coronal Activity |
335 |
Altrock, R.; Howe, R.; Ulrich, R. |
Ephemeral Bipolar Regions in Coronal Holes |
343 |
Hagenaar, H.; Schrijver, C.; DeRosa, M. |
Photospheric Source Regions of Coronal Mass Ejections |
347 |
Muglach, K. |
The Parker Scenario for Coronal Heating as an MHD Turbulence Problem |
353 |
Rappazzo, A.F.; Velli, M.; Einaudi, G. |
Part 7. Posters |
| |
Active regions: Evolution and Effect on Time-Distance Measurements |
365 |
Burtseva, O.; Hill, F.; Kholikov, S. |
FLCT: A Fast, Efficient Method for Performing Local Correlation Tracking |
373 |
Fisher, G.H.; Welsch, B.T. |
Longitudinal Structure Originated in the Tachocline Zone of the Sun |
381 |
Gavryuseva, E. |
Multi-Spectral Analysis of Acoustic Mode Characteristics in Active Regions |
389 |
Jain, K.; Hill, F.; Tripathy, S.C.; González-Hernández, I.; Armstrong,J.D.; Jefferies, S.M.; Rhodes E.J. Jr.; Rose, P. |
The Subsequent Decaying Regions of NOAA AR7978 |
397 |
Li, Y.; Welsch, B.T. |
The Tilted Solar Dipole: Coronal Streamer and Polar Cap Geometry Observed Near Solar Minimum |
405 |
Norton, A.A.; Raouafi, N.-E. |
Magnetohydrostatic Solar Prominences in Near-Potential Coronal Magnetic Fields |
413 |
Petrie, G.J.D.; Blokland, J.W.S.; Keppens, R. |
Relationship Between CME-Associated Waves Observed on 5 March 2000 |
421 |
Raouafi, N.-E.; Tripathi, D. |
On the Origin of Strong-Field Polarity Inversion Lines |
429 |
Welsch, B.T.; Li, Y. |
Back Matter |
| |
Volume 383 Back Matter |
437 |
Howe, R.; Komm, R.W.; Balasubramaniam, K.S.; Petrie, G.J.D. |
Photographs |
| |
Volume 383 Photographs |
999 |
Howe, R.; Komm, R.W.; Balasubramaniam, K.S.; Petrie, G.J.D. |
|
|