Preprints
https://doi.org/10.5194/gmd-2021-442
https://doi.org/10.5194/gmd-2021-442
Submitted as: development and technical paper
04 Mar 2022
Submitted as: development and technical paper | 04 Mar 2022
Status: a revised version of this preprint was accepted for the journal GMD and is expected to appear here in due course.

Multiple same-level and telescoping nesting in GFDL's dynamical core

Joseph Mouallem1,2, Lucas Harris2, and Rusty Benson2 Joseph Mouallem et al.
  • 1Cooperative Institute for Modeling the Earth System, Program in Oceanic and Atmospheric Sciences, Princeton University, Princeton, NJ, USA
  • 2NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, USA

Abstract. Two way multiple same-level and telescoping grid nesting capabilities are implemented in the Geophysical Fluid Dynamics Laboratory (GFDL)’s Finite-Volume Cubed Sphere Dynamical core (FV3). Simulations are performed within GFDL’s System for High-resolution modeling for Earth-to-Local Domains (SHiELD) using global and regional multiple nests configuration. Results show that multiple same level and multi-level telescoping nests were able capture various weather events in greater details by resolving smaller scale flow structures. Two-way updates do not introduce numerical errors in their corresponding parent grids where the nests are located. The cases of Hurricane Laura’s landfall and an atmospheric river in California were found to be more intense with increased levels of telescoping nesting. All nested grids run concurrently and adding additional nests with computer cores to a setup do not degrade the computational performance nor increase the simulation run time if the cores are optimally distributed among the grids

Joseph Mouallem et al.

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2021-442', Sundararaman Gopalakrishnan, 06 Apr 2022
    • AC1: 'Reply on RC1', Joseph Mouallem, 02 May 2022
  • RC2: 'Comment on gmd-2021-442', Anonymous Referee #2, 10 Apr 2022
    • AC2: 'Reply on RC2', Joseph Mouallem, 02 May 2022
  • CEC1: 'Comment on gmd-2021-442', Juan Antonio Añel, 21 Apr 2022
    • AC3: 'Reply on CEC1', Joseph Mouallem, 02 May 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2021-442', Sundararaman Gopalakrishnan, 06 Apr 2022
    • AC1: 'Reply on RC1', Joseph Mouallem, 02 May 2022
  • RC2: 'Comment on gmd-2021-442', Anonymous Referee #2, 10 Apr 2022
    • AC2: 'Reply on RC2', Joseph Mouallem, 02 May 2022
  • CEC1: 'Comment on gmd-2021-442', Juan Antonio Añel, 21 Apr 2022
    • AC3: 'Reply on CEC1', Joseph Mouallem, 02 May 2022

Joseph Mouallem et al.

Joseph Mouallem et al.

Viewed

Total article views: 477 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
362 96 19 477 5 3
  • HTML: 362
  • PDF: 96
  • XML: 19
  • Total: 477
  • BibTeX: 5
  • EndNote: 3
Views and downloads (calculated since 04 Mar 2022)
Cumulative views and downloads (calculated since 04 Mar 2022)

Viewed (geographical distribution)

Total article views: 371 (including HTML, PDF, and XML) Thereof 371 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 20 May 2022
Download
Short summary
The single nest capability in GFDL's dynamical core, FV3, is upgraded to support multiple same-level and telescoping nests. Grid nesting adds a refined grid over an area of interest to better resolve small scale flow features necessary to accurately predict special weather events such as severe storms and hurricanes. This work allow concurrent execution of multiple same level and telescoping multi level nested grids in both global and regional setups.