Schema

Emission

Type: Blank Node


A chemical flow into water, soil, or air.


Field Type Required Definition
term Term Yes

A reference to the Term describing the Emission.

description string No

A description of the Emission.

value array[number|null] Yes

The quantity of the Emission. If an average, it should always be the mean. Can be a single number (array of length one) or an array of numbers with associated dates (e.g. representing multiple measurements over time).

sd array[number|null] No

The standard deviation of value.

min array[number|null] No

The minimum of value.

max array[number|null] No

The maximum of value.

statsDefinition string No

What the descriptive statistics (sd, min, max, and value) are calculated across, or whether they are simulated or the output of a model. Spatial is descriptive statistics calculated across spatial units (e.g., pixels) within a region or country.

Possible values are: sites,cycles,replications,otherObservations,spatial,regions,simulated,modelled

observations array[number|null] No

The number of observations the descriptive statistics are calculated over, if different from the numberOfCycles specified in Cycle.

dates array[string] No

A corresponding array to value, representing the dates of the Emissions in ISO 8601 format (YYYY-MM-DD, YYYY-MM, YYYY, --MM-DD, or --MM).

startDate string No

For Emissions over periods, the start date of the Emission (if different from the start date of the Cycle) in ISO 8601 format (YYYY-MM-DD, YYYY-MM, or YYYY).

endDate string No

For Emissions over periods, the end date of the Emission (if different from the start date of the Cycle) in ISO 8601 format (YYYY-MM-DD, YYYY-MM, or YYYY).

emissionDuration number No

The duration of the Emissions in days, particularly used for measured Emissions.

depth number No

For soil Emissions, the depth at which the Emissions was recorded in centimeters.

properties List[Property] No

A list of Properties of the Emission, which would override any default properties specified in term.

methodModel Term Yes

A reference to the Term describing the method for measuring the Emission or the model used to calculate it.

methodModelDescription string No

A free text field, describing the method for measuring the Emission or the model used to calculate it.

methodTier string Yes

Background data are drawn from existing datasets such as ecoinvent and not modelled specifically here. Measured data are direct measurements of an Emission. Tier 1 methods use global parameters without any regional specificity (e.g. a global factor for the N2O emissions from synthetic fertilizer). Tier 2 methods are models with geographically specific parameters. Tier 3 methods are geographically specific models with time-steps.

Possible values are: background,measured,tier 1,tier 2,tier 3

inputs List[Term] No

For background Emissions, the Terms describing the Inputs they are associated with. This is a required field for background Emissions.

operation Term No

For Emissions created by an operation, the Term describing the operation.

transformation Term No

For Emissions created during a Transformation, the Term describing the Transformation.

source Source No

A reference to the Source of these data, if different from the defaultSource of the Cycle.


Internal Properties

Field Type Definition
@type string Emission
schemaVersion string

The version of the schema when these data were created.

added array[string]

A list of fields that have been added to the original dataset.

addedVersion array[string]

A list of versions of the model used to add these fields.

updated array[string]

A list of fields that have been updated on the original dataset.

updatedVersion array[string]

A list of versions of the model used to update these fields.

aggregated array[string]

A list of fields that have been 'aggregated' using data from multiple Cycles.

aggregatedVersion array[string]

A list of versions of the aggregation engine corresponding to each aggregated field.

deleted boolean

Indicates if this emission has been marked as deleted from the original dataset.


JSON-LD Example 1

JSON-LD Example 2