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

Mouallem, Joseph; Harris, Lucas; Benson, Rusty

doi:10.5194/gmd-15-4355-2022

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

2022
By Mouallem, Joseph ; Harris, Lucas ; Benson, Rusty
Source: Geosci. Model Dev., 15, 4355–4371

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Details:

Journal Title:

Geoscientific Model Development
Personal Author:

Mouallem, Joseph ; Harris, Lucas ; Benson, Rusty

Mouallem, Joseph ; Harris, Lucas ; Benson, Rusty Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System)

OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CIMES (Cooperative Institute for Modeling the Earth System) Less -
Description:

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 nest configurations. Results show that multiple same-level and multi-level telescoping nests were able to 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 does not degrade the computational performance nor increase the simulation run time if the cores are optimally distributed among the grids.
Source:

Geosci. Model Dev., 15, 4355–4371
DOI:

https://doi.org/10.5194/gmd-15-4355-2022
Document Type:

Journal Article
Funding:

Grant no. NA18OAR4320123 ; Grant no. NA19OAR0220143 ; Grant no. NA19OAR0220147

Grant no. NA18OAR4320123 ; Grant no. NA19OAR0220143 ; Grant no. NA19OAR0220147 Less -
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:ec02984be44e7c84459f2e538547e65840948de7cca9e1c3a6686bb8a57e054d
Download URL:

https://repository.library.noaa.gov/view/noaa/46414/noaa_46414_DS1.pdf
File Type:

	Machine readable version (XML)	xml
	Available dataset (Source code & namelist)	htm
	Available code (SHiELD)	htm

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