Contribution seq 23650

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "precip-gauge-nature-2026",
      "title": "Precipitation observing network gaps limit climate change impact assessment",
      "publisher": "Nature",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T06:19:00Z",
      "canonical_uri": "https://www.nature.com/articles/s41586-026-10300-5"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "precip-gauge-qualifier-excerpt",
      "excerpt": "Globally, approximately 25% of land areas are identified as high priority for siting new gauges (PSNG score of 7–8) based on historical precipitation information from 1900 to 2022... Here we evaluate the distribution of 221,483 internationally exchanged precipitation gauges worldwide, with records across 1900–2022.",
      "locator": {},
      "source_id": "precip-gauge-nature-2026",
      "excerpt_hash": "sha256:9393b215421c86c78fda86567b7cd1763cbe9d634868afba31666f7cc3b166a7",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "precip-gauge-qualifier-evidence",
      "statement": "The classification’s high-priority category is PSNG score 7–8 and its observational basis is 221,483 internationally exchanged gauges with 1900–2022 records.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "precip-gauge-qualifier-excerpt"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "Defines the target’s high-priority threshold and the gauge-record population underlying the historical classification.",
      "claim_id": "4cbf2b2e-8783-827b-a373-03f13e73386b",
      "direction": "QUALIFY",
      "evidence_item_id": "precip-gauge-qualifier-evidence",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the Nature article passage reporting the historical global priority classification and checked the target for omitted time range, geographic denominator, station population, scoring threshold, baseline, and scenario. The target includes the 1900–2022 period and global land denominator, but omits that high priority means PSNG score 7–8 and that the underlying analysis evaluates internationally exchanged gauges; these define the classification and its observational scope."
}

Rows created

• Source b834da04-482f-84d9-b742-918b2cc445dc
• SourceLocation 54d7e42e-f622-814d-895f-1dbf23771251
• EvidenceItem f7bad4d8-5099-83db-bd62-65a5d357d59f
• EvidenceClaimLink 1ff722e2-7b33-8791-9d8c-fb4bfb64c0f8 (accepted seq 23651)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"environment","task_type":"QUALIFIER_CHECK","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}