Checks Overview
cc_plugin-wcrp is built from many atomic checks, grouped by category. Eah plugin (e.g., wcrp_cmip6, wcrp_cordex_cmip6) just decides which ones to run; each category focuses on a specific aspect of file quality.
📏 Dimension Checks
Ensure that all dimensions exist and match the variable shapes.
These checks confirm that:
- Dimensions (e.g. time, lat, lon, bnds) are present.
- Their sizes are positive and coherent with variable shapes.
- Bounds variables (e.g. time_bnds) are consistent in size and order.
📊 Variable Checks
Ensure variables are present, their shape matches their dimensions, and (when bounds are declared) each value lies within its bounds.
⏱️ Time Checks
Focus on the time axis: presence of bounds with the right shape, and consistency between the time axis and the filename’s time range.
🏷️ Attribute Checks
Check that mandatory global and variable attributes are there, correctly typed/encoded, and their values are valid against regex patterns or controlled vocabularies.
📁 DRS & Path Consistency Checks
Validate filenames and directory paths and compare with the netcdf file's attributes; verify consistency between attributes like frequency vs table_id, experiment_id, institution, variant_label, etc., against project rules/CVs.
🧬 Data Plausibility Checks
Perform data-level plausibility tests on numeric variables:
- Check NaN and infinite .
- Check Constant .
- Check Fill Value or Missing values filling.
- Detect Physically impossible or statistically extreme outliers.
- Check Chunk size.
📦 File Format & Compression Checks
These checks ensure that the NetCDF file format and compression options comply with project and ESGF recommendations.
Detailed Inventory
For the full list of checks (IDs, description) :
| Category | Check | Check_id |
|---|---|---|
| File | Validate filename pattern and tokens against CV | FILE001 |
| File | Check file format | FILE002 |
| File | Check compression file settings | FILE003 |
| Attributes | Check the existence of an attribute | ATTR001 |
| Attributes | Check the type on an attribute | ATTR002 |
| Attributes | Check encoding (e.g., UTF-8) of an attribute | ATTR003 |
| Attributes | Check the value of an attribute against CV or another constraint | ATTR004 |
| Attributes | Check the constitency of filename tokens with global attributes | ATTR005 |
| Attributes | Check the consistency of attributes related to variant/member | ATTR006 |
| Attributes | Check the consistency of attributes related to experiment details | ATTR007 |
| Attributes | Check the consistency between table_id and frequency attributes | ATTR008 |
| Attributes | Check the consistency of attributes related to institution details | ATTR009 |
| Attributes | Check the consistency of attributes related to source details | ATTR010 |
| Variables | Check the existence of variable | VAR001 |
| Variables | Check the shape aligns with corresponding dimension | VAR002 |
| Variables | Check the consistency of time axis coverage with time range from filename | VAR003 |
| Variables | Ensure each value lies within the range specified by corresponding boundary variable | VAR004 |
| Variables | Check the type of the variable | VAR005 |
| Dimensions | Check the existence of dimension | DIM001 |
| Dimensions | Check the value is a positive integer | DIM002 |
| Dimensions | Check dimension size | DIM003 |
| Directory | Check consistency of directory structure tokens with global attributes | PATH001 |
| Directory | Check consistency of directory structure tokens with filename tokens | PATH002 |
| Directory | alidate directory structure tokens and pattern against CV | PATH003 |
| Data | Check for NaN/Inf values in variable | DATA001 |
| Data | FillValue/MissingValue plausibility for variable | DATA002 |
| Data | Constant field detection for variable | DATA003 |
| Data | Check pysically impossible outlier | DATA004 |
| Data | Check spatial statistical outliers | DATA005 |
| Data | Chunk size Check | DATA006 |