Meeting 4

2019LWS–FST#4 3rd Year Annual Meeting

July 19 – 21, 2022

Conference room (4th floor), Southwest Research Institute
1050 Walnut St, Suite 300, Boulder, CO 80302

Time Speakers Title
Tuesday July 19
09:30 ‑ 09:35 Mausumi Dikpati / Nick Featherstone Introduction
Active Region Flows --- Chair: Maria Camisassa
09:35 ‑ 10:30 Doug Braun Observations and simulations of active region flows
10:30 ‑ 11:00 Coffee break
11:00 ‑ 11:30 Sushant Mahajan Removal Of Active Region Inflows Reveals a Weak Solar Cycle Scale Trend In Near-surface Meridional Flow
11:30 ‑ 12:00 Yang Liu Plan for next tasks
12:00 ‑ 13:30 Lunch break
Active Region Flows (contd.) --- Chair: Dipankar Banerjee
13:30 ‑ 14:00 Sushant Tripathy Comparison of subsurface flows from HMI, MDI and GONG during the overlapping period of May-July 2010
14:00 ‑ 14:30 Rudi Komm Radial Gradient of the Solar Rotation Rate in the Near-Surface Shear Layer
14:30 ‑ 15:00 Coffee break
15:00 ‑ 15:30 Kiran Jain Active region flows
15:30 ‑ 16:00 Robert Leamon The Solar Cycle Clock: Post-Terminator Updates
Wednesday July 20
Global Flows and Long-Term Data --- Chair: Sushant Mahajan
09:30 ‑ 09:50 Junwei Zhao Progress Report on Deriving Global-Scale Flows Using Time-Distance Helioseismology
09:50 ‑ 10:20 Xudong Sun HMI Polar Field Observation During the Rising Phase of Activity Cycle 25
10:20 ‑ 10:50 Coffee break
10.50 – 11.20 Dipankar Banerjee Update on the Kodaikanal Digitized Archive to Study Long Term Variation of Solar Cycles
11:20 ‑ 11:40 Yan Xu Collective Study of Polar Crown Filaments in the Past Four Solar Cycles
11:40 ‑ 11:55 Piyush Agrawal Improvements to Solar Axisymmetric Flow Measurements: Preliminary Results
11:55 ‑ 12:10 Derek Lamb Measurements of global flows: DR and MC
12:10 ‑ 13:30 Lunch break
Global Flows and Long-Term Data (contd.)  --- Chair: Nick Featherstone
13:30 ‑ 14:00 Qin Li Study of global photospheric and chromospheric flows using local correlation tracking and machine learning methods
14:00 ‑ 14:30 Lisa Upton Measurement of solar flows over two solar cycles
14:30 ‑ 15:00 Coffee break
Simulations, Data Assimilation and Predictability Estimates
15:00 ‑ 15:30 Brad Hindman A self-consistent tachocline simulation or thermal Rossby waves in the CZ
15:30 ‑ 16:00 Catherine Blume Rossby waves in the radiative interior
Thursday July 21
Simulations, Data Assimilation and Predictability Estimates (contd.) --- Chair: Qin Li 
09:30 ‑ 10:00 Marc DeRosa Ensemble Kalman Filter (EnKF) data assimilation in SFT model for deriving meridional flow profiles
10:00 ‑ 10:30 Jay Johnson Information Horizon of Active Regions
10:30 ‑ 11:00 Coffee break
11:00 ‑ 11:30 Nick Featherstone The dependence of deep meridional flow structure on Rossby number and convection zone depth
11:30 ‑ 12:00 Maria Camisassa The transition from solar-like to antisolar differential rotation: a geometric interpretation.
12:00 ‑ 13:30 Lunch break
Simulations, Data Assimilation and Predictability Estimates (contd.) --- Chair: Lisa Upton
13:30 ‑ 13:50 Breno Raphaldini Nonlinear interactions among solar Rossby wave modes and implications for long-term solar variability
13:50 ‑ 14:10 Aimee Norton Delta spots and activity nests in solar cycle 24
14:10 ‑ 14:30 Mausumi Dikpati Estimating Predictability Limits for Active-Longitudes Simulations using Ensemble Methods
14:30 ‑ 15:00 Coffee break
15:00 ‑ 16:00 All General Discussions and Final Year Planning

Tuesday, July 12, 2022