Near-Surface Shear Layer Workshop

COFFIES Community Workshop Series '23

Fri Nov 03, 2023 09:00 - 14:00 PDT

Let’s talk about the Near-Surface Shear Layer (NSSL)

Solar activity is a Consequence of Fields and Flows in the Interior and Exterior of the Sun (COFFIES). COFFIES is a NASA Heliophysics DRIVE Science Center working to advance our understanding of how the Sun generates the quasi-cyclic magnetic field that extends throughout the heliosphere. Please join COFFIES DRIVE Science Center researchers online for the second annual series of one-day workshops focused on the Tachocline, Flux Transport & Emergence (FT&E), and the Near-Surface Shear Layer (NSSL).

The Near-Surface Shear Layer extends 5-10% of the way into the convection zone, and processes all of the magnetic flux and plasma passing through it. Two sessions address observations and modeling of temporal and spatial variations of the NSSL, with a third looking at its relationship to both deep and shallow dynamo processes.

Register to receive a zoom link to the workshop.

COFFIES Community Workshop - NSSL
COFFIES Community Workshop - NSSL
Agenda
Time (PT) Topic
08:50 OVERVIEW
Welcome/Introductions
Nick Featherstone & Rudi Komm
09:00 Invited Talk
Evidence that the Magneto Rotational Instability Happens in the NSSL
Geoff Vasil
09:45 Invited Talk
Characterizing the Influence of Active Regions on Near-Surface Flows
Sushant Mahajan
10:30 Discussion
Discussion
10:45 BREAK
Break
11:00 Invited Talk
Recent Measurements of the Torsional Oscillations from Mt. Wilson
Roger Ulrich
11:45 Invited Talk
A Quick Update on the Torsional Oscillation and Meridional Flow During the Rising Phase of Cycle 25
Junwei Zhao
12:30 Discussion
Discussion
12:45 BREAK
Break
13:15 Invited Talk
Bayesian Methods Applied to Meridional Circulation
Alec Herczeg
14:00 Invited Talk
Meridional Flow Through the Lens of Helioseismology
Brad Hindman
14:30 Invited Talk
Recent Simulations of the NSSL
Irina Kitiashvili
15:15 Discussion
Discussion & Wrap-up
16:00 BREAK
Adjourn
The NSSL Theme Baristas, Nick Featherstone and Rudi Komm, would like to thank the invited speakers, as well as all the workshop attendees for their participation.