polaris.mesh.QuasiUniformSphericalMeshStep

class polaris.mesh.QuasiUniformSphericalMeshStep(component, name='base_mesh', subdir=None, cell_width=None)[source]

A step for creating a quasi-uniform JIGSAW mesh with a constant approximate cell width. Subclasses can override the build_cell_width_lat_lon() method to define a lon/lat map of cell width. They can override the make_jigsaw_mesh() method to change how the jigsaw mesh is generated.

Variables: cell_width (float) – The approximate cell width in km of the mesh if constant resolution

__init__(component, name='base_mesh', subdir=None, cell_width=None)[source]

Create a new step

Parameters

component (polaris.Component) – The component the step belongs to
name (str, optional) – the name of the step
subdir ({str, None}, optional) – the subdirectory for the step
cell_width (float, optional) – The approximate cell width in km of the mesh if constant resolution

Methods

`__init__`(component[, name, subdir, cell_width])	Create a new step
`add_dependency`(step[, name])	Add step as a dependency of this step (i.e.
`add_input_file`([filename, target, database, ...])	Add an input file to the step (but not necessarily to the MPAS model).
`add_output_file`(filename[, validate_vars])	Add the output file that must be produced by this step and may be made available as an input to steps, perhaps in other tasks.
`build_cell_width_lat_lon`()	A function for creating cell width array for this mesh on a regular latitude-longitude grid.
`constrain_resources`(available_resources)	Constrain `cpus_per_task` and `ntasks` based on the number of cores available to this step
`make_jigsaw_mesh`(lon, lat, cell_width)	Build the JIGSAW mesh.
`process_inputs_and_outputs`()	Process the inputs to and outputs from a step added with `polaris.Step.add_input_file()` and `polaris.Step.add_output_file()`.
`run`()	Run this step of the task
`runtime_setup`()	Update attributes of the step at runtime before calling the `run()` method.
`save_and_plot_cell_width`(lon, lat, cell_width)	Save the cell width field on a lon/lat grid to `self.cell_width_filename` and plot
`set_resources`([cpus_per_task, ...])	Update the resources for the subtask.
`set_shared_config`(config[, link])	Replace the step's config parser with the shared config parser
`setup`()	Add JIGSAW options based on config options
`validate_baselines`()	Compare variables between output files in this step and in the same step from a baseline run if one was provided.