{ "version": 1, "reviewedAt": "2026-08-26", "generatedAt": "2026-08-26T08:06:25.995Z", "purpose": "Global source intelligence for RiverData. This register distinguishes a river's public data stewards from legal ownership and from RiverData integration status.", "ownershipNote": "Rivers are governed through national law, subnational authorities, basin agreements, infrastructure operators and monitoring agencies. An organization listed here is a steward or publisher, not necessarily an owner of the watercourse.", "methodology": { "jurisdictionSpine": "WMO WHOS Phase I national hydrological service layer, queried as machine-readable ArcGIS features.", "currentVerification": "Official provider documentation and live portals checked on 2026-08-26, plus GRDC's 2026 collection report.", "statusRule": "Connected means RiverData already has an adapter. Ready means a documented machine interface was verified but is not connected. Portal and partnership states remain explicit gaps." }, "summary": { "nationalAndRegionalStewards": 116, "stewardsWithWmoRecordedPublicData": 69, "prioritySystems": 64, "systemIntegration": { "adapter-needed": 16, "blocked": 1, "connected": 18, "credential-needed": 6, "partnership-needed": 13, "ready": 10 }, "systemAccess": { "institutional": 10, "mixed": 1, "open-api": 21, "open-bulk": 6, "public-portal": 19, "registration": 6, "restricted": 1 }, "regions": { "Africa": 11, "Asia": 15, "Europe": 12, "Global": 10, "North America": 5, "South America": 7, "South-West Pacific": 4 } }, "systems": [ { "id": "wmo-whos-global", "name": "WMO Hydrological Observing System", "organization": "World Meteorological Organization", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "stations", "water-level", "discharge", "rainfall", "metadata" ], "access": "registration", "integration": "credential-needed", "url": "https://community.wmo.int/site/knowledge-hub/programmes-and-initiatives/wmo-hydrological-observing-system-whos/whos-web-services-and-supported-tools", "verifiedAt": "2026-08-26", "standards": [ "WaterML 1.0", "OGC SOS", "OAI-PMH", "CSW", "GeoJSON", "ArcGIS REST" ], "notes": "One personal token opens the global broker view. Provider rights and attribution still apply." }, { "id": "grdc", "name": "Global Runoff Database", "organization": "Global Runoff Data Centre", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "stations", "discharge", "history" ], "access": "restricted", "integration": "blocked", "url": "https://grdc.bafg.de/data/data_portal/", "verifiedAt": "2026-08-26", "notes": "Research archive. Terms do not permit RiverData to republish the observations as a public operational feed." }, { "id": "geoglows", "name": "GEOGLOWS ECMWF Streamflow", "organization": "GEOGLOWS and ECMWF", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "modelled-discharge", "forecast", "history" ], "access": "open-api", "integration": "adapter-needed", "url": "https://data.geoglows.org/", "verifiedAt": "2026-08-26", "notes": "Use as a labelled model layer. Confirm downstream licensing before redistribution." }, { "id": "glofas", "name": "Global Flood Awareness System", "organization": "Copernicus Emergency Management Service", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "modelled-discharge", "forecast", "history" ], "access": "open-api", "integration": "connected", "url": "https://global-flood.emergency.copernicus.eu/", "verifiedAt": "2026-08-26", "notes": "Already supplies RiverData model cells through Open-Meteo." }, { "id": "hydroatlas", "name": "HydroATLAS and HydroRIVERS", "organization": "HydroSHEDS", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "river-network", "basins", "lakes", "attributes" ], "access": "open-bulk", "integration": "adapter-needed", "url": "https://www.hydrosheds.org/hydroatlas", "verifiedAt": "2026-08-26", "notes": "Global topology and catchment attributes, not current observations." }, { "id": "global-water-watch", "name": "Global Water Watch Reservoir API", "organization": "Global Water Watch", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "reservoirs", "surface-area", "satellite-history" ], "access": "open-api", "integration": "connected", "url": "https://api.globalwaterwatch.earth/", "verifiedAt": "2026-08-26", "notes": "RiverData progressively loads the global reservoir inventory." }, { "id": "global-dam-watch", "name": "Global Dam Watch", "organization": "Global Dam Watch consortium", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "dams", "reservoir-polygons", "barriers" ], "access": "open-bulk", "integration": "adapter-needed", "url": "https://www.globaldamwatch.org/database", "verifiedAt": "2026-08-26", "notes": "Best open global dam and barrier foundation. Merge by provider IDs and spatial confidence, never by name alone." }, { "id": "dfo-river-watch", "name": "River Watch satellite discharge", "organization": "Dartmouth Flood Observatory", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "satellite-discharge", "history" ], "access": "open-bulk", "integration": "connected", "url": "https://floodobservatory.colorado.edu/DischargeAccess.html", "verifiedAt": "2026-08-26", "notes": "Sparse global satellite stations. Label as an estimate rather than a physical gauge." }, { "id": "dahiti", "name": "DAHITI inland water altimetry", "organization": "DGFI-TUM", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "satellite-water-level", "lakes", "reservoirs", "rivers" ], "access": "registration", "integration": "credential-needed", "url": "https://dahiti.dgfi.tum.de/en/products/", "verifiedAt": "2026-08-26", "notes": "Free registration and request limits. Level is not interchangeable with discharge." }, { "id": "hydroweb-next", "name": "Hydroweb.next inland water altimetry", "organization": "Theia and CNES", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "satellite-water-level", "lakes", "reservoirs", "rivers" ], "access": "registration", "integration": "credential-needed", "url": "https://hydroweb.next.theia-land.fr/", "verifiedAt": "2026-08-26", "notes": "Useful fallback where national services are closed." }, { "id": "usgs-water", "name": "USGS Water Data APIs", "organization": "U.S. Geological Survey", "countries": [ "US", "PR" ], "region": "North America", "dataTypes": [ "stations", "water-level", "discharge", "water-quality", "history" ], "access": "open-api", "integration": "connected", "url": "https://api.waterdata.usgs.gov/docs/", "verifiedAt": "2026-08-26" }, { "id": "noaa-nwps", "name": "National Water Prediction Service", "organization": "NOAA", "countries": [ "US" ], "region": "North America", "dataTypes": [ "stations", "water-level", "discharge", "forecast" ], "access": "open-api", "integration": "connected", "url": "https://water.noaa.gov/about/api", "verifiedAt": "2026-08-26" }, { "id": "us-nid", "name": "National Inventory of Dams", "organization": "U.S. Army Corps of Engineers", "countries": [ "US" ], "region": "North America", "dataTypes": [ "dams", "owners", "risk", "purpose" ], "access": "open-api", "integration": "ready", "url": "https://nid.sec.usace.army.mil/api/developer", "verifiedAt": "2026-08-26" }, { "id": "eccc-hydrometric", "name": "National Hydrometric Data", "organization": "Environment and Climate Change Canada", "countries": [ "CA" ], "region": "North America", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "connected", "url": "https://api.weather.gc.ca/collections/hydrometric-stations?f=html", "verifiedAt": "2026-08-26", "standards": [ "OGC API Features", "GeoJSON" ] }, { "id": "mexico-sih", "name": "Sistema de Información Hidrológica", "organization": "CONAGUA", "countries": [ "MX" ], "region": "North America", "dataTypes": [ "stations", "discharge", "water-level", "rainfall", "history" ], "access": "open-bulk", "integration": "ready", "url": "https://sih.conagua.gob.mx/", "verifiedAt": "2026-08-26", "notes": "National weekly CSV archives and station catalogue." }, { "id": "argentina-siyah", "name": "SIyAH hydrological API", "organization": "Instituto Nacional del Agua", "countries": [ "AR" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "reservoir-volume", "forecast", "history" ], "access": "open-api", "integration": "ready", "url": "https://www.argentina.gob.ar/ina/recursos/aplicacionweb-datos-hidrologicos", "verifiedAt": "2026-08-26", "standards": [ "JSON", "GeoJSON", "CSV", "XML" ] }, { "id": "brazil-hidroweb", "name": "HidroWebservice", "organization": "Agência Nacional de Águas e Saneamento Básico", "countries": [ "BR" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "sediment", "water-quality", "rainfall", "history" ], "access": "registration", "integration": "credential-needed", "url": "https://www.ana.gov.br/hidrowebservice/swagger-ui/index.html", "verifiedAt": "2026-08-26", "notes": "The modern API requires approved credentials. Bulk portal downloads remain available." }, { "id": "chile-dga", "name": "DGA hydrometric statistics", "organization": "Dirección General de Aguas", "countries": [ "CL" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://dga.mop.gob.cl/estadisticas-estaciones-dga/", "verifiedAt": "2026-08-26" }, { "id": "colombia-ideam", "name": "IDEAM hydrological monitoring", "organization": "Instituto de Hidrología, Meteorología y Estudios Ambientales", "countries": [ "CO" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "forecast" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://fews.ideam.gov.co/colombia/MapaEstacionesColombiaEstado.html", "verifiedAt": "2026-08-26" }, { "id": "peru-senamhi", "name": "Hydrological monitoring", "organization": "SENAMHI Perú", "countries": [ "PE" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "forecast" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://www.senamhi.gob.pe/?p=monitoreo-hidrologico", "verifiedAt": "2026-08-26" }, { "id": "whos-plata", "name": "WHOS La Plata", "organization": "WMO and CIC Plata countries", "countries": [ "AR", "BO", "BR", "PY", "UY" ], "region": "South America", "dataTypes": [ "stations", "water-level", "discharge", "rainfall" ], "access": "registration", "integration": "credential-needed", "url": "https://community.wmo.int/site/knowledge-hub/programmes-and-initiatives/wmo-hydrological-observing-system-whos/whos-portals", "verifiedAt": "2026-08-26" }, { "id": "acto-amazon", "name": "Amazon Basin Water Resources Observatory", "organization": "Amazon Cooperation Treaty Organization", "countries": [ "BO", "BR", "CO", "EC", "GY", "PE", "SR", "VE" ], "region": "South America", "dataTypes": [ "basins", "monitoring", "water-quality", "governance" ], "access": "public-portal", "integration": "partnership-needed", "url": "https://aguasamazonicas.otca.org/environmental-and-water-resources-monitoring/?lang=en", "verifiedAt": "2026-08-26" }, { "id": "australia-wdo", "name": "Water Data Online", "organization": "Australian Bureau of Meteorology", "countries": [ "AU" ], "region": "South-West Pacific", "dataTypes": [ "stations", "water-level", "discharge", "storage-level", "storage-volume", "water-quality", "rainfall", "history" ], "access": "open-api", "integration": "ready", "url": "https://www.bom.gov.au/waterdata/wiski-web-public/faq.htm", "verifiedAt": "2026-08-26", "standards": [ "OGC SOS 2", "WaterML 2" ], "notes": "Roughly 6,000 stations. Rate controls require a staged national backfill." }, { "id": "new-zealand-lawa", "name": "Land, Air, Water Aotearoa", "organization": "Regional councils, Cawthron Institute and Ministry for the Environment", "countries": [ "NZ" ], "region": "South-West Pacific", "dataTypes": [ "stations", "discharge", "water-level", "water-quality", "groundwater" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://www.lawa.org.nz/explore-data", "verifiedAt": "2026-08-26" }, { "id": "new-zealand-niwa", "name": "NIWA Hydro Web Portal", "organization": "National Institute of Water and Atmospheric Research", "countries": [ "NZ" ], "region": "South-West Pacific", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://hydrowebportal.niwa.co.nz/", "verifiedAt": "2026-08-26" }, { "id": "pacific-whos-gap", "name": "Pacific national hydrology services", "organization": "National services and WMO Regional Association V", "countries": [ "CK", "FJ", "PG", "SB", "TO", "VU", "WS" ], "region": "South-West Pacific", "dataTypes": [ "stations", "water-level", "rainfall" ], "access": "institutional", "integration": "partnership-needed", "url": "https://community.wmo.int/site/knowledge-hub/programmes-and-initiatives/wmo-hydrological-observing-system-whos/wmo-hydrological-observing-system-whos-phase-i", "verifiedAt": "2026-08-26", "notes": "WMO identifies the stewards, but no national reusable machine feed was verified for these island states." }, { "id": "india-nwdp", "name": "National Water Data Portal", "organization": "National Water Informatics Centre and Central Water Commission", "countries": [ "IN" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "reservoir-storage", "water-quality", "sediment", "history" ], "access": "open-bulk", "integration": "connected", "url": "https://nwdp.nwic.gov.in/en/organization/cwc?groups=water-quantity&organization=cwc", "verifiedAt": "2026-08-26", "notes": "One public CWC resource is connected. The national catalog exposes many more state and telemetry CSV resources that need automated discovery." }, { "id": "bangladesh-ffwc", "name": "Flood Forecasting and Warning Centre", "organization": "Bangladesh Water Development Board", "countries": [ "BD" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "forecast" ], "access": "public-portal", "integration": "connected", "url": "https://ffwc.gov.bd/", "verifiedAt": "2026-08-26" }, { "id": "pakistan-ffd", "name": "Flood Forecasting Division river state", "organization": "Pakistan Meteorological Department", "countries": [ "PK" ], "region": "Asia", "dataTypes": [ "stations", "discharge", "dams", "reservoir-level", "forecast" ], "access": "public-portal", "integration": "connected", "url": "https://ffd.pmd.gov.pk/river-state", "verifiedAt": "2026-08-26" }, { "id": "japan-mlit", "name": "River disaster prevention information", "organization": "Ministry of Land, Infrastructure, Transport and Tourism", "countries": [ "JP" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "water-quality", "dams", "reservoir-level", "inflow", "outflow", "rainfall", "forecast" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://www.river.go.jp/kawabou/pc/", "verifiedAt": "2026-08-26", "notes": "National portal is extensive, but no stable documented public API was verified." }, { "id": "korea-wamis", "name": "Water Resources Management Information System", "organization": "Ministry of Environment and flood control offices", "countries": [ "KR" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "dams", "water-quality", "basins", "ecology", "history" ], "access": "open-api", "integration": "ready", "url": "https://www.wamis.go.kr/", "verifiedAt": "2026-08-26", "notes": "Official Open API exists. Service timed out from the RiverData build environment during verification." }, { "id": "taiwan-wra", "name": "Hydrological Open Data API", "organization": "Water Resources Agency", "countries": [ "TW" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "reservoirs", "gates", "flood-sensors", "history" ], "access": "open-api", "integration": "connected", "url": "https://iot.wra.gov.tw/swagger/index.html", "verifiedAt": "2026-08-26", "notes": "RiverData connects the national Internet of Water river and drainage station feed, retaining the reporting authority and native basin name. WRA labels real-time telemetry as raw and not quality controlled." }, { "id": "mrc-data-services", "name": "Mekong River Commission data services", "organization": "Mekong River Commission", "countries": [ "KH", "LA", "TH", "VN" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "dams", "water-quality", "drought", "forecast" ], "access": "open-api", "integration": "ready", "url": "https://data-services.mrcmekong.org/", "verifiedAt": "2026-08-26", "notes": "Documented API covers hydromet, dams, forecasts and water quality. The service refused connections from the build environment during verification." }, { "id": "nepal-dhm", "name": "Real Time Stream Flow and River Watch", "organization": "Department of Hydrology and Meteorology", "countries": [ "NP" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "thresholds", "forecast" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://dhm.gov.np/hydrology/realtime-stream", "verifiedAt": "2026-08-26" }, { "id": "malaysia-infobanjir", "name": "Public InfoBanjir", "organization": "Department of Irrigation and Drainage Malaysia", "countries": [ "MY" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "rainfall", "thresholds" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://publicinfobanjir.water.gov.my/real-time-status/?lang=en", "verifiedAt": "2026-08-26", "notes": "National real-time tables and exports are public. A supported API was not verified." }, { "id": "philippines-pagasa", "name": "Flood Information and Dam Status", "organization": "PAGASA", "countries": [ "PH" ], "region": "Asia", "dataTypes": [ "river-basins", "water-level", "dams", "reservoir-level", "inflow", "outflow", "forecast" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://www.pagasa.dost.gov.ph/flood", "verifiedAt": "2026-08-26" }, { "id": "sri-lanka-irrigation", "name": "Realtime rivers and reservoir status", "organization": "Irrigation Department of Sri Lanka", "countries": [ "LK" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "reservoir-storage", "rainfall" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://www.irrigation.gov.lk/web/index.php?lang=en", "verifiedAt": "2026-08-26" }, { "id": "thailand-dwr", "name": "Water situation API", "organization": "Department of Water Resources", "countries": [ "TH" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "inflow", "forecast" ], "access": "open-api", "integration": "ready", "url": "https://mekhala.dwr.go.th/", "verifiedAt": "2026-08-26", "notes": "An official API specification is published. Verify credentials, rate limits and reuse terms before production." }, { "id": "indonesia-pusair", "name": "National and regional water monitoring", "organization": "Ministry of Public Works and Housing", "countries": [ "ID" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "dams" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://sda.pu.go.id/", "verifiedAt": "2026-08-26", "notes": "Data is fragmented across national and basin portals. No single documented anonymous national API was verified." }, { "id": "china-mwr", "name": "National and basin hydrological services", "organization": "Ministry of Water Resources and river basin commissions", "countries": [ "CN" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "dams", "reservoirs", "forecast" ], "access": "institutional", "integration": "partnership-needed", "url": "http://www.mwr.gov.cn/english/", "verifiedAt": "2026-08-26", "notes": "China has extensive national, provincial and basin data. No complete anonymous national operational API was verified." }, { "id": "central-asia-nhs", "name": "Central Asian national hydrometeorological services", "organization": "Kazhydromet, Uzhydromet, Kyrgyzhydromet, Tajikhydromet and Turkmenhydromet", "countries": [ "KZ", "KG", "TJ", "TM", "UZ" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "forecast" ], "access": "institutional", "integration": "partnership-needed", "url": "https://community.wmo.int/site/knowledge-hub/programmes-and-initiatives/wmo-hydrological-observing-system-whos/wmo-hydrological-observing-system-whos-phase-i", "verifiedAt": "2026-08-26" }, { "id": "south-africa-dws", "name": "National Hydrological Services", "organization": "Department of Water and Sanitation", "countries": [ "ZA" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "dams", "reservoir-storage", "water-quality", "history", "forecast" ], "access": "public-portal", "integration": "ready", "url": "https://www.dws.gov.za/Hydrology/Default.aspx", "verifiedAt": "2026-08-26", "notes": "Near real-time stage and flows, verified history, and weekly status for roughly 210 dams." }, { "id": "nile-basin-hydromet", "name": "Nile Basin Hydromet System", "organization": "Nile Basin Initiative", "countries": [ "BI", "CD", "EG", "ET", "KE", "RW", "SS", "SD", "TZ", "UG" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "rainfall", "basins" ], "access": "public-portal", "integration": "partnership-needed", "url": "https://nilebasin.org/hydromet/map", "verifiedAt": "2026-08-26" }, { "id": "niger-basin-observatory", "name": "Niger Basin Observatory", "organization": "Niger Basin Authority", "countries": [ "BJ", "BF", "CM", "CI", "GN", "ML", "NE", "NG", "TD" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "basins", "forecast" ], "access": "institutional", "integration": "partnership-needed", "url": "https://www.abn.ne/", "verifiedAt": "2026-08-26" }, { "id": "omvs", "name": "Senegal River basin monitoring", "organization": "Organisation pour la mise en valeur du fleuve Sénégal", "countries": [ "GN", "ML", "MR", "SN" ], "region": "Africa", "dataTypes": [ "stations", "dams", "reservoirs", "governance" ], "access": "public-portal", "integration": "partnership-needed", "url": "https://www.omvs.org/", "verifiedAt": "2026-08-26" }, { "id": "zamcom", "name": "Zambezi Water Information System", "organization": "Zambezi Watercourse Commission", "countries": [ "AO", "BW", "MW", "MZ", "NA", "TZ", "ZM", "ZW" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "dams", "basins", "forecast" ], "access": "institutional", "integration": "partnership-needed", "url": "https://www.zambezicommission.org/", "verifiedAt": "2026-08-26" }, { "id": "orasecom", "name": "Orange-Senqu basin information", "organization": "Orange-Senqu River Commission", "countries": [ "BW", "LS", "NA", "ZA" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "dams", "basins" ], "access": "institutional", "integration": "partnership-needed", "url": "https://orasecom.org/", "verifiedAt": "2026-08-26" }, { "id": "cicos", "name": "Congo Basin water information", "organization": "International Commission of the Congo-Oubangui-Sangha Basin", "countries": [ "AO", "BI", "CM", "CF", "CG", "CD", "GA", "RW", "TD" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "basins", "navigation" ], "access": "institutional", "integration": "partnership-needed", "url": "https://www.cicos.int/", "verifiedAt": "2026-08-26" }, { "id": "volta-basin", "name": "Volta Basin Observatory", "organization": "Volta Basin Authority", "countries": [ "BJ", "BF", "CI", "GH", "ML", "TG" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "dams", "basins" ], "access": "institutional", "integration": "partnership-needed", "url": "https://abv.int/", "verifiedAt": "2026-08-26" }, { "id": "lake-chad", "name": "Lake Chad Basin information", "organization": "Lake Chad Basin Commission", "countries": [ "CM", "CF", "LY", "NE", "NG", "TD" ], "region": "Africa", "dataTypes": [ "stations", "lake-level", "basins", "groundwater" ], "access": "institutional", "integration": "partnership-needed", "url": "https://cblt.org/", "verifiedAt": "2026-08-26" }, { "id": "rwanda-water-portal", "name": "Rwanda Water Portal", "organization": "Rwanda Water Resources Board", "countries": [ "RW" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://waterportal.rwb.rw/", "verifiedAt": "2026-08-26" }, { "id": "west-africa-nhs-gap", "name": "West African national hydrology services", "organization": "National hydrology services", "countries": [ "BF", "GH", "GN", "LR", "NG", "SL" ], "region": "Africa", "dataTypes": [ "stations", "water-level", "discharge" ], "access": "institutional", "integration": "partnership-needed", "url": "https://community.wmo.int/site/knowledge-hub/programmes-and-initiatives/wmo-hydrological-observing-system-whos/wmo-hydrological-observing-system-whos-phase-i", "verifiedAt": "2026-08-26", "notes": "Some national portals exist, but regional completeness, stable APIs and reuse rights need direct confirmation." }, { "id": "pegelonline", "name": "PEGELONLINE", "organization": "German Federal Waterways and Shipping Administration", "countries": [ "DE" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "connected", "url": "https://www.pegelonline.wsv.de/webservice/dokuRestapi", "verifiedAt": "2026-08-26" }, { "id": "hubeau", "name": "Hub'Eau hydrométrie", "organization": "French Biodiversity Office and Ministry for Ecological Transition", "countries": [ "FR", "GF" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "connected", "url": "https://hubeau.eaufrance.fr/page/api-hydrometrie", "verifiedAt": "2026-08-26" }, { "id": "environment-agency", "name": "Flood Monitoring API", "organization": "Environment Agency", "countries": [ "GB-ENG" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "flood-alerts" ], "access": "open-api", "integration": "connected", "url": "https://environment.data.gov.uk/flood-monitoring/doc/reference", "verifiedAt": "2026-08-26" }, { "id": "danubehis", "name": "DanubeHIS", "organization": "International Commission for the Protection of the Danube River", "countries": [ "AT", "BA", "BG", "CZ", "DE", "HR", "HU", "MD", "RO", "RS", "SI", "SK", "UA" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "rainfall", "water-temperature" ], "access": "open-api", "integration": "connected", "url": "https://www.danubehis.org/", "verifiedAt": "2026-08-26", "standards": [ "WaterML 2" ] }, { "id": "nve-hydapi", "name": "HydAPI", "organization": "Norwegian Water Resources and Energy Directorate", "countries": [ "NO" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "registration", "integration": "credential-needed", "url": "https://hydapi.nve.no/", "verifiedAt": "2026-08-26" }, { "id": "denmark-vandah", "name": "VanDa hydrometry API", "organization": "Danish Environmental Protection Agency", "countries": [ "DK" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "ready", "url": "https://vandah.miljoeportal.dk/api/swagger/index.html", "verifiedAt": "2026-08-26" }, { "id": "spain-roea", "name": "ROEA hydrometric web service", "organization": "MITECO", "countries": [ "ES" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "ready", "url": "https://sig.mapama.gob.es/WebServices/clientews/redes-seguimiento", "verifiedAt": "2026-08-26" }, { "id": "portugal-snirh", "name": "SNIRH", "organization": "Agência Portuguesa do Ambiente", "countries": [ "PT" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "reservoir-storage", "water-quality", "history" ], "access": "public-portal", "integration": "adapter-needed", "url": "https://snirh.apambiente.pt/", "verifiedAt": "2026-08-26" }, { "id": "sweden-hydroobs", "name": "HydroObs", "organization": "Swedish Meteorological and Hydrological Institute", "countries": [ "SE" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-bulk", "integration": "connected", "url": "https://opendata.smhi.se/hydroobs/resources/data", "verifiedAt": "2026-08-26" }, { "id": "finland-syke", "name": "Hydrological API", "organization": "Finnish Environment Institute", "countries": [ "FI" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "reservoirs", "history" ], "access": "open-api", "integration": "connected", "url": "https://rajapinnat.ymparisto.fi/api/Hydrologiarajapinta/1.2/", "verifiedAt": "2026-08-26" }, { "id": "ireland-opw", "name": "waterlevel.ie", "organization": "Office of Public Works", "countries": [ "IE" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "open-api", "integration": "connected", "url": "https://waterlevel.ie/", "verifiedAt": "2026-08-26" }, { "id": "europe-remaining-national", "name": "European national and regional hydrometry", "organization": "National and regional water agencies", "countries": [ "AT", "BE", "CH", "CZ", "HR", "IT", "LT", "NL", "PL", "SI", "SK", "UA" ], "region": "Europe", "dataTypes": [ "stations", "water-level", "discharge", "history" ], "access": "mixed", "integration": "connected", "url": "/sources", "verifiedAt": "2026-08-26", "notes": "These networks are already connected individually and remain attributed to their national or regional publishers." }, { "id": "thailand-thaiwater", "name": "Dated national river and Bangkok drainage observations", "organization": "Hydro Informatics Institute and contributing agencies", "countries": [ "TH" ], "region": "Asia", "dataTypes": [ "stations", "water-level", "discharge", "rainfall", "canals", "history", "thresholds" ], "access": "open-api", "integration": "connected", "url": "https://api-v3.thaiwater.net/api/v1/thaiwater30/public/waterlevel_load", "verifiedAt": "2026-09-26", "notes": "Integrated dated Thai river observations, Bangkok canal levels and flows, and measured rainfall. Chao Phraya uses 20 reviewed main-stem sensors with separate minimum-bank and critical-MSL references. Date-range history backfilled from 2021 through 26 September 2026: 3,524,236 source observations summarized into 36,438 station-days, retaining daily minima, maxima, sample means and counts. HDA006 and HDA009 begin in April 2025; missing dates remain gaps. Sensor threshold exceedance is distinct from satellite-detected flood extent." }, { "id": "thailand-gistda-flood-exposure", "name": "Satellite flood exposure summaries", "organization": "GISTDA", "countries": [ "TH" ], "region": "Asia", "dataTypes": [ "floods", "population", "infrastructure", "agriculture" ], "access": "public-portal", "integration": "connected", "url": "https://disaster.gistda.or.th/flood", "verifiedAt": "2026-09-26", "notes": "Public rolling-window summaries of population, buildings, roads, hospitals, schools and crop exposure. Acquisition date and population year are not supplied." }, { "id": "nasa-viirs-flood", "name": "Global daily flood classification", "organization": "NASA LANCE / NOAA VIIRS", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "floods", "satellite" ], "access": "open-api", "integration": "connected", "url": "https://lance.modaps.eosdis.nasa.gov/flood/", "verifiedAt": "2026-09-26", "notes": "Approximately 250 m two-day flood composite. Cloud and classification limitations apply. Sampled detected flood cells support population and facility overlays." }, { "id": "worldpop-global2", "name": "Population within flood footprints", "organization": "WorldPop, University of Southampton", "countries": [ "GLOBAL" ], "region": "Global", "dataTypes": [ "population", "exposure" ], "access": "open-api", "integration": "connected", "url": "https://api.worldpop.org/v2/", "verifiedAt": "2026-09-26", "notes": "2025 Global2 population model at 100 m, summed within sampled NASA detected flood cells. Estimates are residential exposure, not reported affected or displaced counts." } ], "stewards": [ { "countryCode": "AF", "country": "Afghanistan", "wmoRegion": "Asia", "organization": "Ministry of Energy and Water / General Water Affairs Management Directorate, Water Resources Department", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.wrd-mew.gov.af/index.php", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "DZ", "country": "Algeria", "wmoRegion": "Africa", "organization": "National Agency of Water Resources", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.anrh.dz/", "realTimeUrl": null, "historicalUrl": "https://www.anrh.dz/catalogue.htm", "integration": "research-needed", "inventoryBasis": "WMO WHOS Phase I map layer", 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"partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BY", "country": "Belarus", "wmoRegion": "Europe", "organization": "Republican center for hydrometeorology, control of radioactive contamination and environmental monitoring (Belhydromet)", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://belgidromet.by/ru/", "realTimeUrl": "https://www.pogoda.by/flmaps/?map=belarus_hidrology", "historicalUrl": null, "integration": "adapter-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BH", "country": "Belize", "wmoRegion": "North America, Central America and the Caribbean", "organization": "Hydrology Unit of the Ministry of Natural Resources", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://mnra.gov.bz/natural-resources/hydrology-unit/", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BT", "country": "Bhutan", "wmoRegion": "Asia", "organization": "Department of Hydromet Services", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.hydromet.gov.bt/", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BO", "country": "Bolivia, Plurinational State of", "wmoRegion": "South America", "organization": "National Service of Meteorology and Hydrology", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.senamhi.gob.bo/", "realTimeUrl": null, "historicalUrl": "https://senamhi.gob.bo/index.php/sismet", "integration": "research-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BA", "country": "Bosnia and Herzegovina", "wmoRegion": "Europe", "organization": "Federal Hydrometorological Institute", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.fhmzbih.gov.ba/latinica/index.php", "realTimeUrl": "https://www.fhmzbih.gov.ba/latinica/HIDRO/vodostaji.php", "historicalUrl": "https://www.fhmzbih.gov.ba/latinica/HIDRO/godisnjaci.php", "integration": "connected", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BR", "country": "Brazil", "wmoRegion": "South America", "organization": "National Water Agency", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.ana.gov.br/", "realTimeUrl": "https://www.snirh.gov.br/gestorpcd/Mapa.aspx", "historicalUrl": "https://hidroweb.ana.gov.br/", "integration": "adapter-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BN", "country": "Brunei Darussalam", "wmoRegion": "South-West Pacific", "organization": "Public Works Department", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.mod.gov.bn/PWD/Theme/Home.aspx", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BG", "country": "Bulgaria", "wmoRegion": "Europe", "organization": "National Institute of Meteorology and Hydrology (NIMH)", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.meteo.bg/en/node/67", "realTimeUrl": "https://hydro.bg/bg/t1.php?ime=&gr=data/&gn=tablRekiB", "historicalUrl": null, "integration": "connected", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "BF", "country": "Burkina Faso", "wmoRegion": "Africa", "organization": "Water Resources Directorate", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.eauburkina.org/index.php", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "KH", "country": "Cambodia", "wmoRegion": "Asia", "organization": "Department of Hydrology and River Works (DHRW)", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.dhrw-cam.org/", "realTimeUrl": null, "historicalUrl": "https://www.mowram-nffc.org/index.php", "integration": "research-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CM", "country": "Cameroon", "wmoRegion": "Africa", "organization": "Institute of Geological and Mining Research (IRGM)", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.irgm-cameroun.org/programme_hydrologie_hydrogeologie", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CA", "country": "Canada", "wmoRegion": "North America, Central America and the Caribbean", "organization": "Water Survey of Canada (WSC)", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.canada.ca/en/environment-climate-change/services/water-overview/quantity/monitoring/survey.html", "realTimeUrl": "https://wateroffice.ec.gc.ca/search/real_time_e.html", "historicalUrl": "https://wateroffice.ec.gc.ca/search/historical_e.html", "integration": "connected", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CL", "country": "Chile", "wmoRegion": "South America", "organization": "General Directorate of Water", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.dga.cl/Paginas/default.aspx", "realTimeUrl": "https://dgasatel.mop.cl/filtro_paramxestac_new.asp", "historicalUrl": "https://snia.dga.cl/BNAConsultas/reportes", "integration": "adapter-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CN", "country": "China", "wmoRegion": "Asia", "organization": "Ministry of Water Resources", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.mwr.gov.cn/", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CO", "country": "Colombia", "wmoRegion": "South America", "organization": "Institute of Hydrology, Meteorology and Environmental Studies (IDEAM)", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://www.ideam.gov.co", "realTimeUrl": "https://fews.ideam.gov.co/colombia/MapaEstacionesColombiaEstado.html", "historicalUrl": "https://dhime.ideam.gov.co/atencionciudadano/", "integration": "adapter-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CK", "country": "Cook Islands", "wmoRegion": "South-West Pacific", "organization": "Infrastructure Cook Islands", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://ici.gov.ck/water", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CR", "country": "Costa Rica", "wmoRegion": "North America, Central America and the Caribbean", "organization": "Instituto Costarricense de Electricidad (ICE)", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.grupoice.com/wps/portal", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "HR", "country": "Croatia", "wmoRegion": "Europe", "organization": "Croatian Meteorological and Hydrological Service", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://meteo.hr/", "realTimeUrl": "https://hidro.dhz.hr", "historicalUrl": "https://hidro.dhz.hr", "integration": "connected", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CU", "country": "Cuba", "wmoRegion": "North America, Central America and the Caribbean", "organization": "Instituto Nacional de Recursos Hidráulicos (INRH)", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://www.hidro.gob.cu/es", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "CY", "country": "Cyprus", "wmoRegion": 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"Danish Centre for Environment and Energy", "scope": "national", "wmoRecordedPublicData": true, "organizationUrl": "https://dce.au.dk/en/", "realTimeUrl": "https://www.miljoeportal.dk", "historicalUrl": "https://www.miljoeportal.dk", "integration": "adapter-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "DO", "country": "Dominican Republic", "wmoRegion": "North America, Central America and the Caribbean", "organization": "Instituto Nacional de Recursos Hidráulicos (INDRHI)", "scope": "national", "wmoRecordedPublicData": false, "organizationUrl": "https://indrhi.gob.do", "realTimeUrl": null, "historicalUrl": null, "integration": "partnership-needed", "inventoryBasis": "WMO WHOS Phase I map layer", "inventoryCaveat": "WMO inventory fields may be older than the 2026 verification layer." }, { "countryCode": "EC", "country": "Ecuador", "wmoRegion": "South America", 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