2021-06-24 All-Hands Presentation Meeting Notes

Owned by Luke Van Roekel
Last updated: Apr 05, 2023 by Renata McCoy

Presenter: Sid Bishnu

Title:  

Time-Stepping Methods for PDEs and Ocean Models

Abstract: 

 
In this talk, I will be discussing my research findings at LANL over the last couple of years, which involve:
(a) Deriving the full expression of the local truncation error of hyperbolic PDEs;
(b) Developing a theory on the spatial and temporal order of convergence of hyperbolic PDEs;
(c) Addressing complications associated with time-stepping in ocean models e.g. barotropic-baroclinic splitting and time-averaging of barotropic modes with appropriate filters;
(d) Designing a suite of verification exercises for the barotropic equations of unstructured ocean models like LANL's MPAS-O;
(e) Performing convergence studies on each test case of (d) with refinement in space and time, and verifying the numerical order of convergence against the one specified by our theory in (a) and (b).
These topics will be presented with examples of ocean simulations, to be of interest to the broader climate modeling audience.

Date

 

Time

  • PT: 8:30 am
  • ET: 11:30 am

Call Info

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Attendees

Presentation

Time
Title
Presenter
Presentation
Recording
Notes

30 min


Time-Stepping Methods for PDEs and Ocean Models

Sid Bishnu

E3SMPresentationJune2021WithMovieSnapshots.pdf

MP4 Movie (on the E3SM YouTube Channel)