Core Entities

The Turtle files found in the EMO-BON crates are harvested and aggregated into a triple store, forming a large, interconnected knowledge graph of EMO-BON data.

Core Entities Diagram

Observatory¶

An EMO-BON organizational unit linked to the collection of a specific sample type (e.g., water column, soft sediment) from a fixed, pre-determined location.

• Class
  core:Observatory

• URI Pattern:
  {{base}}/observatory-{obs_id}-crate/{env_package}/observatory/{obs_id}
  Example: http://data.emobon.embrc.eu/observatory-bpns-crate/sediment/observatory/BPNS

Sampling Event¶

A sampling action performed at a particular observatory at a specific time, resulting in the collection of one or more samples.

• Class:
  sosa:Sampling, prov:Activity

• Relationships:

  • Sampling event → sampling:linkedToObservatory → Observatory

  • Sampling event → sosa:hasResult → Sample(s)

• URI Pattern:
  {{base}}/observatory-{obs_id}-crate/{env_package}/sampling-event/{sampling_event}
  Example: http://data.emobon.embrc.eu/observatory-bpns-crate/sediment/sampling-event/BPNS_So_210701

Sample (Material Sample)¶

A material sample collected during a sampling event. Each unique material sample has a unique material sample ID.

• Class:
  sosa:Sample, prov:Activity

• Relationships:

  • Sample → sosa:isResultOf → Sampling Event

• URI Pattern:
  {{base}}/observatory-{obs_id}-crate/{env_package}/sample/{source_mat_id}
  Example: http://data.emobon.embrc.eu/observatory-bpns-crate/sediment/sample/EMOBON_BPNS_So_1

• Observation¶

A measurement or observation made on a sample.

• Class:
  sosa:Observation, schema:Observation

• Relationships:

  • Observation → sosa:hasFeatureOfInterest → Sample

• URI Pattern:
  {{base}}/observatory-{obs_id}-crate/{env_package}/observation/{source_mat_id}#{observedProperty}
  Example: http://data.emobon.embrc.eu/observatory-bpns-crate/sediment/observation/EMOBON_BPNS_So_1