http://bolin.su.se/data/wiskandt-2024-sof-sill-1 Jonathan Wiskandt Bolin Centre Database 2024 Datafile Marine Circulation Ice-ocean modelling Hydraulic control High resolution regional ocean modelling Greenland fjord circulation Earth science services > Models > Ocean general circulation models (ogcm)/regional ocean models Jonathan Wiskandt 2024-02-08T13:50:42+00:00 English 1 This dataset contains the four directories listed below. 1. `l128_code` Files to compile the MITgcm simulations. Here you change parameters that have to be set before compiling. - `SIZE.h` set grid dimensions and split domain for parallelization - `SHELFICE_OPTIONS.h` set options for Shelfice Package - `packages.conf` define which packages to use - `OBCS_OPTIONS.h` set options for Open Boundary Conditions (OBCS) package - `CPP_OPTIONS.h` set options for MITgcm in general 1. `l128_build` Empty folder for the files for compiling the model, using the instructions from the MITgcm documentation. 1. `l128_run` Sub-directories containing files to run the compiled model. The name of the sub-directories is constituted of 6 parameters, e.g. `64km_ryd_1SLOPE_AW02_sill810_sgd200`. 1. `64km` Model domain width 1. `ryd` Fjord name Ryder 1. `1SLOPE` Single shape slope (constant angle) 1. `AW02` Atlantic water temperature of ~0.2 degree Celsius 1. `sill810` Sill height 1. `sgd200` Subglacial discharge of 200% of reference experiments basal melt 1. `l128_output` contains the time averaged (last 40 model days) fields. The name of the files is constituted of 9 parameters, e.g. `l128_64km_ryd_1SLOPE_AW02_sill250_161_200_TimeAve`. 1. `I128` name of the model build (l - large domain, 128 - 128 processes) 1. `64km` Model domain width 1. `ryd` Fjord name Ryder 1. `1SLOPE` Single shape slope (constant angle) 1. `AW02` Atlantic water temperature of ~0.2 degree Celsius 1. `sill250` Sill height 1. `161` start day of model output 1. `200` end day of model output 1. `TimeAve` Time average from start day to end day For further instructions on how to use MITgcm please refer to its [documentation](https://mitgcm.readthedocs.io/en/latest/). MITgcm namelist files are written to be read by Fortran code. The input data is created using a python script named `gendata.py` (both data and the script can be found in the repository). The script read CTD data provided in a separate dataset: [Oceanographic CTD data from the Ryder 2019 expedition](https://bolin.su.se/data/oden-ryder-2019-ctd-1) ##### Model build instructions Please follow the simple instructions below to build the model. ``` % cd l128_build % ../tools/genmake2 -mods ../code -optfile «/PATH/TO/OPTFILE» % make depend % make ``` Please refer to the [full documentation](https://mitgcm.readthedocs.io/en/latest/getting_started/getting_started.html#quickstart-guide) for further instructions of how to build the model ##### Model run instructions Please follow the simple example below to run the model. ``` % cd ../l128_run/64km_ryd_1SLOPE_AW02_sill810_sgd200 % python gendata.py % cp ../l128_build/mitgcmuv . % ./mitgcmuv ``` Please refer to the [full documentation](https://mitgcm.readthedocs.io/en/latest/getting_started/getting_started.html#quickstart-guide) for further instructions of how to build the model