Coupled Model Optimization Using an Ocean-Only Adjoint. Part I: A Proof of Concept for Ocean Mixing Parameter Adjustments

This document provides the model configurations and model output for the manuscript of"Coupled Model Optimization Using an Ocean-Only Adjoint. Part I: A Proof of Concept for Ocean Mixing Parameter Adjustments" There are 6 experiments in this study:Simulation 1. ECCO_V4r4 ocean-only V4r4 solutionSimulation 2. ECCO_uniform ocean-only with uniform DIFFKR, KAPGM, KAPREDISimulation 3. GEOS_V4r4 GEOS-ECCO with V4r4 DIFFKR, KAPGM, KAPREDISimulation 4. GEOS_uniform GEOS-ECCO with uniform DIFFKR, KAPGM, KAPREDISimulation 5. ECCO_opt ocean-only with fluxes from Sim4, and optimized DIFFKR, KAPGM, KAPREDISimulation 6. GEOS_opt GEOS-ECCO with DIFFKR, KAPGM, KAPREDI from Sim5. The repository has both model output (folders suffix with "output") and model configuration (folders suffix with "config") ===The model output includes3D THETA/SALT/UVLEMASS/VVELMASS THETA: Potential Temperature (degC) SALT: Salinity (g/kg) UVLEMASS: Zonal Mass-Weighted Comp of Velocity (m/s) VVELMASS: Meridional Mass-Weighted Comp of Velocity (m/s)2D ETAN/PHIBOT/sIceLoad/MXLDEPTH/oceQnet/oceFWflx/oceTAUX/oceTAUY ETAN: Surface Height Anomaly (m) PHIBOT: Bottom Pressure Potential Anomaly (m^2/s^2) sIceLoad: sea-ice loading (kg/m^2) MXLDEPTH: Mixed-Layer Depth (m) oceQnet: net surface heat flux into the ocean (W/m^2) oceFWflx: net surface Fresh-Water flux into the ocean (kg/m^2/s) oceTAUX: zonal surface wind stress (N/m^2) oceTAUY: meridional surf. wind stress (N/m^2)They're monthly mean from 2006/01 to 2013/12, naming in the form of ${FLD}.${YEAR}${MN}.data All output is on native grid.the folder "GRID" contains the native grid files.One can use gcmfaces package for Matab or ECCOv4-py package for Python to read and analyze the model output along with grid files.The corresponding documents and packages are publically availabe at https://gcmfaces.readthedocs.io/en/latest/index.htmlhttps://github.com/MITgcm/gcmfaces https://ecco-v4-python-tutorial.readthedocs.io/index.htmlhttps://github.com/ECCO-GROUP/ECCOv4-py ===Model configurationfor ocean-only, ie, Simulation 1. ECCO_V4r4 Simulation 2. ECCO_uniform Simulation 5. ECCO_optwe use ECCO v4r4 flux-forced version for iteration of adjoint+optimThe setup has detail here https://github.com/ECCO-GROUP/ECCO-v4-Configurations/blob/master/ECCOv4%20Release%204/flux-forced/doc/README_fluxforced.md for coupled atmos-ocean, ie, Simulation 3. GEOS_V4r4 Simulation 4. GEOS_uniform Simulation 6. GEOS_optwe use GEOS/ECCO c90-llc90 version for coupled simulation. The setup has detail here https://github.com/geos-mitgcm-ecco/gmao_mitgcm_coupling/blob/master/instructions/checkout_geosmitv11.1.1.txt As ECCOv4 is straightforward to follow and explore according to the instruction, the GEOS-ECCO relies on localized code-base expansions optimized for execution on NASA High-End Computing (HEC) platforms whichlimit portability to generalized consumer systems,we provide a frozen build for GEOS-ECCO, ie, "GEOSgcm" folder.In addition, we provide mixing parameteres and their specification essential to this studyfor each of the six simulations.