{"data":{"event":{"id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","slug":"google-flood-hub-ungauged-rivers","title":"Google Flood Hub issues 7-day river-flood forecasts in ungauged basins","short_summary":"A Nature paper on 20 March 2024 described Google’s operational AI hydrology system that provides free 7-day flood forecasts, including in ungauged watersheds, via Flood Hub covering dozens of countries.","full_description":"The model, related to the NeuralHydrology line, was compared with Copernicus GloFAS and deployed without paywall. Google later stated coverage on the order of 100+ countries and large exposed populations. Forecasts support alerts but do not by themselves prove lives saved in a controlled study.","ledger_type":"benefit","primary_domain_id":"99fd8a40-a540-41d3-af98-57c1709ee422","event_status":"verified","event_date":"2024-03-20T00:00:00.000Z","discovery_date":"2024-03-20T00:00:00.000Z","first_published_date":"2024-03-20T00:00:00.000Z","last_reviewed_date":"2024-03-20T00:00:00.000Z","geographic_scope":"80+ countries at publication; later expanded","affected_population":"Residents of forecast river basins (Google later cited on the order of 1–2 billion in covered basins)","base_impact_tier":3,"base_score":"10.00","attribution_multiplier":"0.7000","evidence_multiplier":"0.7000","realization_multiplier":"0.8000","durability_multiplier":"0.6000","current_event_score":"1.999200","confidence_level":"high","score_explanation":"Operational global flood forecast access is major (tier 3). Attribution shared with public hydro data. Peer-reviewed skill plus live service. Realization is deployed forecasts. Medium durability as models update.","methodology_version_id":"d7881163-fb23-4e71-8625-bac1a8662c0f","original_methodology_version_id":"d7881163-fb23-4e71-8625-bac1a8662c0f","published_at":"2024-03-20T00:00:00.000Z","created_at":"2026-09-13T20:47:20.075Z","updated_at":"2026-09-13T20:47:20.075Z","flags":[],"domain_name":"Climate & Environment","domain_slug":"climate-environment","methodology_version":"0.1"},"contributions":[{"id":"cc612142-0a9c-4d78-82b2-7c3d379bf4eb","event_id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","model_id":"68452f76-3371-4c49-906f-4e077cc48dc7","role_description":"Hydrologic and inundation models powering Flood Hub.","attribution_multiplier":"0.7000","credit_share":"0.8500","contribution_score":"1.999200","attribution_rationale":"Learned hydrology is central; observations and agency dissemination remain human/public infrastructure.","attribution_confidence":"medium","first_used_date":"2024-03-20T00:00:00.000Z","model_version_if_known":null,"review_status":"approved","created_at":"2026-09-13T20:47:20.075Z","model_slug":"google-flood-forecasting-model","model_name":"Google Flood Forecasting Model","identity_class":"named_release","is_internal":false,"family_name":"NeuralHydrology","family_slug":"google-neuralhydrology","organization_name":"Google","organization_slug":"google"}],"sources":[{"id":"64dfd391-ae83-4afc-b926-a2bef2648978","event_id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","url":"https://www.nature.com/articles/s41586-024-07145-1","canonical_url":"https://www.nature.com/articles/s41586-024-07145-1","source_type":"peer_reviewed","publisher":"Nature","author":null,"publication_date":"2024-03-20T00:00:00.000Z","retrieved_at":"2026-09-13T20:47:20.075Z","title":"Global prediction of extreme floods in ungauged watersheds","excerpt":null,"content_hash":null,"source_reliability_class":"high","is_primary_source":true,"is_independent":true,"is_peer_reviewed":true,"archived_url":null,"created_at":"2026-09-13T20:47:20.075Z"},{"id":"d0cad03b-a930-4eee-bba1-aed743ad0a13","event_id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","url":"https://sites.research.google/floods/","canonical_url":"https://sites.research.google/floods/","source_type":"developer_announcement","publisher":"Google","author":null,"publication_date":"2024-03-20T00:00:00.000Z","retrieved_at":"2026-09-13T20:47:20.075Z","title":"Flood Hub","excerpt":null,"content_hash":null,"source_reliability_class":"low","is_primary_source":true,"is_independent":false,"is_peer_reviewed":false,"archived_url":null,"created_at":"2026-09-13T20:47:20.075Z"}],"claims":[{"id":"23bfe4ff-a7e5-4e67-b5cb-b06c479ae067","event_id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","claim_text":"An operational system based on the paper provides open 7-day river-flood forecasts including ungauged basins.","claim_type":"outcome","claim_status":"supported","confidence_score":null,"created_at":"2026-09-13T20:47:20.075Z","updated_at":"2026-09-13T20:47:20.075Z"}],"revisions":[{"id":"2b961de5-1dc6-4f69-9ade-aae5d48c8f39","event_id":"30a9a41c-b645-4c6d-a531-fac3e0111c03","model_id":null,"previous_score":"0.000000","new_score":"1.999200","previous_factors":{},"new_factors":{"evidence":0.7,"base_score":10,"durability":0.6,"attribution":0.7,"realization":0.8},"change_reason":"Initial adjudicated seed score under methodology 0.1.","trigger_type":"seed","trigger_source_ids":null,"reviewer_id":null,"review_status":"published","created_at":"2026-09-13T20:47:20.075Z"}],"secondary":[{"name":"Engineering","slug":"engineering"}]},"methodology_version":"0.1"}