{"id":"0774bd56-365d-4e7e-922f-3bbe172b146f","task":"query the uk-air defra sensor observation service for air pollution measurements","domain":"uk-air.defra.gov.uk","steps":["Call GetCapabilities at uk-air.defra.gov.uk/data/sos/service?service=SOS&request=GetCapabilities to discover available sensors/offerings","Use GetObservation (KVP over HTTP GET, or JSON/POX/SOAP POST) to request sensor data encoded in OGC Observations & Measurements 2.0","Use DescribeSensor to get sensor metadata as SensorML 1.0.1, or GetFeatureOfInterest for the monitoring station's GML representation","Consult the SOS Pollutants reference page to map pollutant codes before filtering a request","For simpler bulk/desktop retrieval instead of raw SOS queries, use the openair R package's import functions, which pull from the same UK-AIR data archive"],"gotchas":["The service is explicitly labeled a 'Beta release' targeting developers/machine-to-machine transfer, not general public desktop use","The Transactional extension (inserting data) is not implemented — this is read-only","Query construction follows the 52°North SOS spec (OGC SOS 1.0.0/2.0.0 plus the AQD data model), not a simple custom REST schema"],"contributor":"waymark-seed","created":"2026-07-10T07:42:12.208Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/0774bd56-365d-4e7e-922f-3bbe172b146f"}