LWS Workshop 2013
Understanding
the Dynamics of the Sun using Helioseismology and MHD
Simulations
February 11 - 15, 2013
The goals of this workshop are to discuss and stimulate further
development of helioseismology methods, solar interior models, and
realistic numerical simulations. These goals are particularly
important for analysis of the continuous data flow from the Solar
Dynamics Observatory, development and verification of
helioseismology methods, and for theoretical interpretation of
observations and inversion results.
The workshop will be held at the
NASA Ames Research Park, Bld. 152
(200 Daley Road, Moffett Field,
Mountain View, CA 94035, USA).
For providing access to the NASA Research Center during the workshop
we request that all Foreign National (non-US citizens and
non-Green-Card holders) contact Nagi Mansour
(Nagi.N.Mansour@nasa.gov) and Gina Morello
(gina.f.morello@nasa.gov) by e-mail as soon as possible.
For directions, maps, and access see: http://sun.stanford.edu/LWS2013/logistics.html
For the local information, maps, hotels etc, please, check the the
NASA Ames Conference Center web site: http://naccenter.arc.nasa.gov/.
Workshop
Agenda
Monday, Feb.11
4:30 pm-6:30 pm - Registration
and Reception at the
NASA Visitor's Exploration Center, located at the main gate to NASA's Ames Research Center
at Moffett Field, California.
Tuesday, Feb.12
9:00am - 9:10am - Opening
Session 1: MHD Simulations and
Space Weather Applications
9:10am - 10:10am: The Coronal Global Evolutionary Model (CGEM) -
George Fisher (UC Berleley)
10:10am - 10:40am: A Convective Dynamo Simulation of a Cyclic Solar
Dynamo - Yuhong Fan (NCAR)
10:40am - 11:00am: Coffee break
11:00am - 11:30am: Approach to Integrate Global-Sun Models of
Magnetic Flux Emergence and Transport for Space Weather Studies -
Nagi Mansour (NASA Ames Research Center)
11:30am - 12:30pm: Active Region Emergence - Robert Stein (Michigan
State University)
12:30pm - 2:00pm: Lunch break
2:00pm - 2:30pm: Solar-Cycle Variation of Zonal and Meridional Flow
- Rudolf Komm (NSO)
2:30pm - 3:00pm: On the Storage of Dynamo-Generated Magnetic Tubes
in Differentially Rotating Stars - Edisher Kaghashvili (Atmospheric
and Environmental Research, Inc)
3:00pm - 3:30pm: Energy Buildup in Active Regions: A Comparison of
AR11158 with a Simulation of Magnetic Flux Emergence - Ward
Manchester (University of Michigan)
3:30pm - 4:00pm: Numerical Simulations of Small-Scale Magnetic
Fields on the Sun - Irina Kitiashvili (Stanford University)
4:00pm - 4:30pm: Coffee break
4:30pm - 5:00pm: Magnetic Helicity in the Emerging Active Regions in
the Sun: A Statistical Study - Yang Liu (Stanford University)
5:00pm - 5:30pm: Circular Ribbon Flares and Homologous Jets - Haimin
Wang (NJIT)
5:30pm - 6:00pm: On the Acceleration of Solar Energetic Particles
During Halloween Storms - Ahmed Hady (Cairo University)
Wednesday, Feb.13
Session 2: Advances in
Helioseismology Analyses and Data Processing
9:00am - 10:00am: Review of Ring-Diagram Analysis - Richard Bogart
(Stanford University)
10:00am - 10:30am: Assessing Results From the Ring-Diagram Fitting
Methods - Kiran Jain (NSO)
10:30am - 11:00am: Coffee break
11:00am - 11:30am: Understanding the Dynamics of Supergranulation
Using Helioseismology and Linear Acoustic Simulations - Thomas
Duvall (NASA/GSFC)
11:30am - 12:00noon: Alignment of Sub-Surface Convection from
Ring-Diagram Analysis - Benjamin Greer (JILA, CU Boulder)
12:00noon - 12:30pm: Comparison of Meridional and Zonal Subsurface
Flow Results via Ring Diagram Analysis from the 60' Solar Tower at
MWO to Reprocessed MDI Results - Stephen Pinkerton (USC)
12:30pm - 2:00pm: Lunch break
2:00pm - 3:00pm: Review of Time-Distance Helioseismology and
Detection of Equator-ward Meridional Flows in the Solar Interior -
Junwei Zhao (Stanford University)
3:00pm - 3:30pm: How Best to Utilize Time-Distance Inversions? -
Jason Jackiewicz (New Mexico State University)
3:30pm - 4:00pm: Time-Distance Helioseismology of Realistic Solar
Simulations - Kyle DeGrave (New Mexico State University)
4:00pm - 4:30pm: Coffee break
4:30pm - 5:00pm: On the Nature of Detected Pre-emergence Signatures
of Magnetic Flux - Stathis Ilonidis (Stanford University)
5:00pm - 5:30pm: Perturbations in the Wave Parameters Near Active
Regions - Cristina Rabello-Soares (UFMG, Brazil)
5:30pm - 6:00pm: Characteristics of Chromospheric Activity Over
Nearly Two Hale Cycles - Jeff Scargle (NASA Ames Research Center)
Thursday, Feb.14
Session 3: Helioseismology and
Global Dynamics
9:00am - 10:00am: On Using Numerical Wave-Propagation Simulations to
Address the Sunspot Seismology Controversy - Doug Braun
(CoRA)
10:00am - 10:30am: Preparing the Helioseismic Far-Side Maps for
Input to Solar Models - Irene Gonzalez Hernandez (NSO)
10:30am - 11:00am: Coffee break
11:00am - 11:30am: Measurements of Scattering Matrix of Sunspots -
Dean-Yi Chou (National Tsing Hua University, Taiwan)
11:30am - 12:00noon: Magnetic and Thermal Effects of MHD Wave
Propagation, Scattering, and Transformation in Different Models of
Sunspots - Konstantin Parchevsky (Stanford University)
12:00noon - 12:30pm: Analysis of Sunquakes Events Observed From SDO
- Alexander Kosovichev (Stanford University)
12:30pm - 2:00pm: Lunch break
2:00pm - 3:00pm: Review of Global Dynamics and Dynamo Modeling -
Mark Miesch (NCAR)
3:00pm - 3:30pm: Non-Standard Thermodynamic Structure of the Solar
Subsurface Shear Layer - Edward Rhodes (USC)
3:30pm - 4:00pm: Solar Differential Rotation, Hints to Reproduce a
Near-surface Shear Layer in Global Simulations - Gustavo Guerrero
(Stanford University)
4:00pm - 4:30pm: Coffee break
4:30pm - 5:00pm: Center-to-limb Variations in Travel Time
Measurements and Deep Meridional Flow - Shukur Kholikov (NSO)
5:00pm - 5:30pm: Synthetic Helioseismology Data from Numerical
Simulations of Wave Propagation Through Meridional and Large-scale
Flows - Thomas Hartlep (Stanford University)
6:00pm - 8:00pm: Group dinner at
a local restaurant in Mountain View
Friday, Feb.15
Splinter Group Meetings at Stanford
9:00am-5:00pm
1. SDO Local Helioseismology Data Analysis (Cedar Meeting Room):
Rick Bogart
2. Numerical MHD Simulations (Cypress Meeting Room): Nagi Mansour
3. LWS Flare Dynamics FST (Physics & Astrophysics, 133): Haimin
Wang
Registered Participants
For further information about the workshop, please, contact Nagi
Mansour (Nagi.N.Mansour@nasa.gov), Rudi Komm (rkomm@nso.edu) or
Alexander Kosovichev (sasha@sun.stanford.edu).