FEOTS v0.0.0: a new offline code for the fast equilibration of tracers in the ocean
Abstract
Abstract. In this paper we introduce a new software framework for the offline calculation of tracer transport in the ocean. The Fast Equilibration of Ocean Tracers Software (FEOTS) is an end-to-end set of tools to efficiently calculate tracer distributions on a global or regional sub-domain using transport operators diagnosed from a comprehensive ocean model. To the best of our knowledge, this is the first application of a transport matrix model to an eddying ocean state. While a Newton–Krylov-based equilibration capability is still under development and not presented here, we demonstrate in this paper the transient modeling capabilities of FEOTS in an application focused on the Argentine Basin, where intense eddy activity and the Zapiola Anticyclone lead to strong mixing of water masses. The demonstration illustrates progress in developing offline passive tracer simulation capabilities, while highlighting the challenges of the impulse response functions approach in capturing tracer transports by a non-linear advection scheme. Our future work will focus on improving the computational efficiency of the code to reduce time-to-solution, using different basis functions to better represent non-linear advection operators, applying FEOTS to a parent model with unstructured grids (Ocean Model for Prediction Across Scales, MPAS-Ocean), and fully implementing a Newton–Krylov steady-statemore »
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1975163
- Alternate Identifier(s):
- OSTI ID: 1985859
- Report Number(s):
- LA-UR-22-23416
Journal ID: ISSN 1991-9603
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Published Article
- Journal Name:
- Geoscientific Model Development (Online)
- Additional Journal Information:
- Journal Name: Geoscientific Model Development (Online) Journal Volume: 16 Journal Issue: 10; Journal ID: ISSN 1991-9603
- Publisher:
- Copernicus GmbH
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Earth Sciences
Citation Formats
Schoonover, Joseph, Weijer, Wilbert, and Zhang, Jiaxu. FEOTS v0.0.0: a new offline code for the fast equilibration of tracers in the ocean. Germany: N. p., 2023.
Web. doi:10.5194/gmd-16-2795-2023.
Schoonover, Joseph, Weijer, Wilbert, & Zhang, Jiaxu. FEOTS v0.0.0: a new offline code for the fast equilibration of tracers in the ocean. Germany. https://doi.org/10.5194/gmd-16-2795-2023
Schoonover, Joseph, Weijer, Wilbert, and Zhang, Jiaxu. Wed .
"FEOTS v0.0.0: a new offline code for the fast equilibration of tracers in the ocean". Germany. https://doi.org/10.5194/gmd-16-2795-2023.
@article{osti_1975163,
title = {FEOTS v0.0.0: a new offline code for the fast equilibration of tracers in the ocean},
author = {Schoonover, Joseph and Weijer, Wilbert and Zhang, Jiaxu},
abstractNote = {Abstract. In this paper we introduce a new software framework for the offline calculation of tracer transport in the ocean. The Fast Equilibration of Ocean Tracers Software (FEOTS) is an end-to-end set of tools to efficiently calculate tracer distributions on a global or regional sub-domain using transport operators diagnosed from a comprehensive ocean model. To the best of our knowledge, this is the first application of a transport matrix model to an eddying ocean state. While a Newton–Krylov-based equilibration capability is still under development and not presented here, we demonstrate in this paper the transient modeling capabilities of FEOTS in an application focused on the Argentine Basin, where intense eddy activity and the Zapiola Anticyclone lead to strong mixing of water masses. The demonstration illustrates progress in developing offline passive tracer simulation capabilities, while highlighting the challenges of the impulse response functions approach in capturing tracer transports by a non-linear advection scheme. Our future work will focus on improving the computational efficiency of the code to reduce time-to-solution, using different basis functions to better represent non-linear advection operators, applying FEOTS to a parent model with unstructured grids (Ocean Model for Prediction Across Scales, MPAS-Ocean), and fully implementing a Newton–Krylov steady-state solver.},
doi = {10.5194/gmd-16-2795-2023},
journal = {Geoscientific Model Development (Online)},
number = 10,
volume = 16,
place = {Germany},
year = {Wed May 24 00:00:00 EDT 2023},
month = {Wed May 24 00:00:00 EDT 2023}
}
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