Heat transport across the Antarctic Slope Front controlled by cross-slope salinity gradients

• Main Authors: Yidongfang Si, Andrew L. Stewart, Ian Eisenman
• Format: Dataset
• Language: unknown
• Published: 2022
• Subjects: Antarctic; The Antarctic; Antarc*
• Online Access: https://zenodo.org/record/6904145; https://doi.org/10.5281/zenodo.6904145

Please see the latest version: https://doi.org/10.5281/zenodo.7651177 This release contains updates on analysis code and products. MITgcm_ASF-heat-ver2/newexp/: the Matlab scripts used to generate and run the MITgcm simulations MITgcm_ASF-heat-ver2/analysis/cross_slope/ and MITgcm_ASF-heat-ver2/analysis/plots/: the Matlab scripts used to analyze model output and make plots. exps_configuration.zip: the configurations of the MITgcm simulations. products_new-ver2.zip: the products calculated from MITgcm diagnostics, including 7-year means of all the model outputs, overturning streamfunctions, neutral density, shoreward heat transport, kinetic energy, temporal decomposition, etc. ThicknessFlux_FreshShelf.zip: products of isopycnal thickness flux, used to calculate the decomposition of eddy/tidal heat advection/diffusion, for the "fresh-shelf" simulation. ThicknessFlux_ref.zip: as above, but for the reference simulation. ThicknessFlux_DenseShelf.zip: as above, but for the "dense-shelf" simulation. The source code of the Massachusetts Institute of Technology General Circulation Model (MITgcm) is available at: http://mitgcm.org. All the raw data of the model output are available at: https://doi.org/10.15144/S47P49. To reproduce MITgcm_ASF simulations: Start each simulation with a 20-year spin-up integration. Before running each simulation, you need to substitute &OBCS_PARM04 with &OBCS_PARM05 in the file input/data.obcs, and substitute &EXF_NML_05 with &EXF_NML_OBCS in the file input/data.exf. For simulations with very fresh shelf waters (e.g., shelf salinity = 33 psu), you need to spin up the simulation with a very small time step (e.g., 60s) for ~ two months, and then use a larger time step. Initialize the production run from the corresponding spin-up run, using the Matlab script initialize.m in the folder MITgcm_ASF-heat-ver2/newexp/. When using the LAYERS package, you need to substitute numperlist = 1 with numperlist = 2 in the file code/DIAGNOSTICS_SIZE.h before running the simulations. Notes on ...