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| Attribute Name | Value | Examples | Comment |
|---|---|---|---|
| Conventions | CF convention string [Other convention] :... | "CF-1.6" "CF-1.6 C3S-0.1" | Multiple conventions may be included (separated by blank spaces) |
| title | A controlled vocabulary will be provided CF: Free text ACDD (highly recommended) | "IPSL-CM5A-LR model output prepared for CMIP5 RCP4.5" | A short phrase or sentence describing the dataset. In many discovery systems, the title will be displayed in the results list from a search, and therefore should be human readable and reasonable to display in a list of such names |
| references | URIs (such as a URL or DOI) for papers or other references. A valid doi is recommended CF: Free text | "doi:10.5194/gmd-8-1509-2015" | Published or web-based references that describe the data or methods used to produce it. |
| source | A methodology to build this attribute will be provided |
| The method of production of the original data. If it was model-generated, source should name the model and its version, as specifically as it could be useful |
| institution | A controlled vocabulary will be provided CF: Free text
| "Met Office" | Specifies where the original data was produced. The name of the institution principally responsible for originating this data. |
| contact | Copernicus User Support URI should be used CF: Free text | "http://copernicus-support.ecmwf.int" |
|
| project | "C3S Seasonal Forecast" should be used CF: Free text
| "C3S Seasonal Forecast" |
|
| creation_date | SPECS: YYYY-MM-DDThh:mm:ss<zone> ISO 8601:2004 extended format | "2011-06-24T02:53:46Z" | The date on which this version of the data was created. (Modification of values implies a new version, hence this would be assigned the date of the most recent values modification.) Metadata changes are not considered when assigning the creation_date NOTE: The ACDD 1.3 names this attribute as |
| comment | Free text |
| Miscellaneous information about the data, not captured elsewhere. |
| forecast_type | "forecast" or "hindcast" | "forecast" | To identify the type of data |
| history | Each line should begin with a timestamp indicating the date and time of day when the program was executed CF: Free Text |
| To record relevant information, such as the command history which led to this file being produced. Provides an audit trail for modifications to the original data.
|
commit, iso_lineage or lineage | Free text (ISO Lineage model 19115-2) | "Produced using CDS Toolbox v1.0" | trace of the tools/scripts used. Paco: include information about the versioning of the software used to create the data Antonio S. Cofino Gonzalez: We need a more implementtios examples on this. This could achiived in EQC WP where metadata is been part of their activities (i.e. WP4@QA4SEAS). ISO 19115-2 defines a linage model where this is been considered. TBD. |
| summary | The content will be provided ACDD (highly recommended): Text, defined phrase | A short paragraph describing the dataset | |
| keywords | The content will be provided ACDD (highly recommended) : text, controlled vocabulary | A comma separated list of key words and phrases. | |
| forecast_reference_time | SPECS: YYYY-MM-DDThh:mm:ssZ NOTE: This is ISO 8601:2004 extended format | "2011-06-01T00:00:00Z" | time of the analysis from which the forecast was made UTC zone is required |
Spatial Coordinates
| Finalised | Type CMIP5 | Coordinate Name (CMIP5) | Dimension Names (CMIP5) | Axis | standard_name | long_name (CMIP5) | units (CF canonical units) | positive | valid_min (CMIP5) | valid_max (CMIP5) | Notes | Y|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| double | lat | lat | Y | latitude | latitude | degrees_north | N/A | -90. | 90. | Bounds required Values (1x1deg grid) required | ||
| Y | double | lon | lon | X | longitude | longitude | degrees_east | N/A | 0. | 360. | Bounds required Values (1x1deg grid) required | Y|
| double | plev | plev | Z | air_pressure | pressure | Pa | down | N/A | N/A | This is also referred to as isobaric level by some tools Value (plevels) required (ITT) | Y||
| double | depth | depth | Z | depth | depth | m | down | N/A | N/A | Used for soil model levels NOTE: Number and depth of levels is not prescribed by C3S | ||
| Y | double | height | height | Z | height | height | m | up | CMIP5: 2mtemp: 1. | CMIP5: 2mtemp: 10. | can be used for single level (height, soil) e.g. 2 m (for Temperature) | N|
C3S: string
ISSUE: Then, it needs an auxiliary coordinate | realization | C3S: realization_dim CF: a different name is needed for dim/variable | N/A | realization | realization | 1 | N/A | N/A | N/A | members are not a physical quantity. Realization is Discrete Axis and the mebers it categorical values (ordered or non-ordered ones) |
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