polaris.tasks.mesh.spherical.unified.coastline.RemapCoastlineStep

class polaris.tasks.mesh.spherical.unified.coastline.RemapCoastlineStep(component, fine_coastline_step, coarse_resolution, subdir)

Remap coastline products from the finest lat-lon grid to a coarser one.

The ocean mask is remapped conservatively (block average) and thresholded. Connectivity is inherited from the flood-filled finest-resolution mask, so no second flood fill is performed. The signed distance is remapped bilinearly (as an unsigned magnitude) and then re-signed using the remapped ocean mask.

__init__(component, fine_coastline_step, coarse_resolution, subdir)

Create a new step.

Parameters:

• component (polaris.Component) – The component the step belongs to

• fine_coastline_step (ComputeCoastlineStep) – The shared highest-resolution coastline step whose outputs are remapped to the coarser grid

• coarse_resolution (float) – The target coarser lat-lon resolution in degrees

• subdir (str) – The subdirectory within the component’s work directory

Methods

__init__(component, fine_coastline_step, ...)	Create a new step.
add_dependency(step[, name])	Add step as a dependency of this step (i.e. this step can't run until the dependency has finished).
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.
check_properties()	This method should be overridden to check properties of step outputs
constrain_resources(available_resources)	Constrain cpus_per_task and ntasks based on the number of cores available to this step
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.
runtime_setup()	Update attributes of the step at runtime before calling the run() method.
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()	Set up the step in the work directory, including linking inputs.
validate_baselines()	Compare variables between output files in this step and in the same step from a baseline run if one was provided.