{"source":"nve","operation":"get_hydro_observations","description":"Get a hydrological time series for a station. Signature: get_hydro_observations(station_id: string, required; parameter: integer, required; resolution: integer, optional, default 1440; reference_time: string, optional, default None; order: string, optional, default 'desc'; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0).","signature":"get_hydro_observations(station_id: string, required; parameter: integer, required; resolution: integer, optional, default 1440; reference_time: string, optional, default None; order: string, optional, default 'desc'; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)","parameters":[{"name":"station_id","type":"string","schema":{"type":"string"},"required":true,"default":null,"description":"NVE station id, e.g. \"1.200.0\" (from find_hydro_stations).","unit":null},{"name":"parameter","type":"integer","schema":{"type":"integer"},"required":true,"default":null,"description":"Numeric parameter id. Common ones: 0=precipitation(mm), 1000=water level(m), 1001=water discharge(m3/s), 1002=water velocity(m/s), 1003=water temperature(C), 1004=reservoir volume(Mm3). See list_hydro_parameters().","unit":null},{"name":"resolution","type":"integer","schema":{"type":"integer"},"required":false,"default":1440,"description":"Time step in minutes: 1440=daily (default), 60=hourly, 0=instantaneous.","unit":null},{"name":"reference_time","type":"string","schema":{"anyOf":[{"type":"string"},{"type":"null"}]},"required":false,"default":null,"description":"ISO-8601 interval \"start/end\", e.g. \"2026-06-01T00:00:00/2026-07-01T00:00:00\". Defaults to last 7 days.","unit":null},{"name":"order","type":"string","schema":{"type":"string"},"required":false,"default":"desc","description":"\"desc\" (default) puts the newest observation first, \"asc\" the oldest. Use \"asc\" for charts.","unit":null},{"name":"limit","type":"integer","schema":{"type":"integer","minimum":1,"maximum":100,"default":25},"display_type":"integer","required":false,"default":25,"description":"Maximum list items returned by the gateway (default 25, maximum 100).","unit":"items"},{"name":"offset","type":"integer","schema":{"type":"integer","minimum":0,"default":0},"display_type":"integer","required":false,"default":0,"description":"Number of list items to skip before returning the page.","unit":"items"}],"json_get_url_template":"https://allemannsdata.com/wiki/api/v1/kilder/nve/get_hydro_observations?station_id={station_id}&parameter={parameter}&resolution=1440&reference_time={reference_time}&order=desc&limit=25&offset=0","schema_scope":"#/data in the successful operation envelope","response_schema":{"type":"object","properties":{"station_id":{"type":["string","null"]},"station_name":{"type":["string","null"]},"parameter":{"type":["integer","null"]},"parameter_name":{"type":["string","null"]},"unit":{"type":["string","null"]},"observation_count":{"type":["integer","null"]},"order":{"type":["string","null"]},"observations":{"type":"array","items":{"type":"object","properties":{"time":{"type":"string","format":"date-time"},"value":{"type":["number","null"]},"quality":{"type":["integer","null"]}},"additionalProperties":false,"required":["time","value"]}},"note":{"type":["string","null"]}},"additionalProperties":false,"required":["station_id","parameter","observations"]},"response_schema_status":{"status":"declared","codegen_safe":true,"description":"Maintained response contract."},"entity_projection":{"status":"projected","entity_types":["hydrology_station"],"description":"Recognized records and stable operation identifiers are projected; an empty array means the successful payload contained no recognizable entity."},"error_contract":{"scope":"top-level HTTP error response; never part of a success payload","schema":{"type":"object","properties":{"error":{"type":"object","properties":{"code":{"type":"string"},"message":{"type":"string"},"retryable":{"type":"boolean"},"details":{"type":"object"}},"additionalProperties":false,"required":["code","message","retryable"]},"suggestion":{"type":"string"},"_meta":{"type":"object","properties":{"retrieved_at":{"type":"string","format":"date-time"},"language":{"type":"string","const":"en"},"content_languages":{"type":"array","items":{"type":"string"}},"sources":{"type":"array","items":{"type":"object"}}},"required":["retrieved_at","language","content_languages","sources"]},"_links":{"type":"object","properties":{"self":{"type":"string","format":"uri"},"api_index":{"type":"string","format":"uri"},"feedback":{"type":"string","format":"uri"}},"required":["self","api_index","feedback"],"additionalProperties":false}},"additionalProperties":false,"required":["error","suggestion","_meta","_links"]},"statuses":{"400":{"codes":["MISSING_PARAMETER","INVALID_PARAMETER","INVALID_REQUEST"],"retryable":false},"404":{"codes":["SOURCE_NOT_FOUND","OPERATION_NOT_FOUND","ENTITY_NOT_FOUND"],"retryable":false},"429":{"codes":["RATE_LIMITED","GATEWAY_RATE_LIMITED"],"retryable":true},"502":{"codes":["SOURCE_UNAVAILABLE"],"retryable":true},"500":{"codes":["INTERNAL_ERROR"],"retryable":true}}},"_links":{"self":"https://allemannsdata.com/wiki/api/v1/kilder/nve/get_hydro_observations/schema","operation":"https://allemannsdata.com/wiki/api/v1/kilder/nve/get_hydro_observations","source":"https://allemannsdata.com/wiki/api/v1/kilder/nve","feedback":"https://allemannsdata.com/wiki/api/v1/feedback"},"output_fields":["station_id","station_name","parameter","parameter_name","unit","observation_count","order","observations","observations[].time","observations[].value","observations[].quality","note"],"output_fields_truncated":false,"canonical_field_aliases":{"timestamp":["observations[].time"]},"temporal_conventions":{"timezone":"UTC","utc_fields":["time"],"ordering":"Newest observation first. Pass order=asc for chronological order, e.g. when plotting.","join_guidance":"Ask for no more history than you need: a 7-day hourly window is 168 points and only the first 100 survive the gateway page ceiling, so order=asc drops the newest data rather than the oldest."},"response_example":{"source":"nve","operation":"get_hydro_observations","parameters":{"station_id":"example-id","parameter":1,"resolution":1440,"reference_time":"2026-01-15T12:00:00Z","order":"desc"},"data":{"station_id":"example-id","station_name":"Example","parameter":1,"parameter_name":"Example","unit":"example value","observation_count":1,"order":"example value","observations":[{"time":"2026-01-15T12:00:00Z","value":1.0,"quality":1}],"note":"example value"},"entities":[{"type":"hydrology_station","id":"example-id","source":"nve","description":"Hydrology station used as the operation input."}],"_meta":{"retrieved_at":"2026-01-15T12:00:00Z","language":"en","content_languages":["en"],"sources":[{"id":"nve","name":"NVE HydAPI","description":"Hydrological stations and observations for water level, discharge, temperature, snow and groundwater, plus every hydro and wind power plant with owner, capacity and production.","cache_ttl_seconds":60,"documentation":"https://hydapi.nve.no/UserDocumentation/","rate_limit":"The gateway monitors upstream quota information and caches metadata."}]},"_provenance":{"data":{"source":"nve","source_api":"https://allemannsdata.com/wiki/api/v1/kilder/nve"},"entities":{"source":"nve","source_api":"https://allemannsdata.com/wiki/api/v1/kilder/nve","derived_from":"#/data","description":"Normalized projection of data."}},"_links":{"self":"https://allemannsdata.com/wiki/api/v1/kilder/nve/get_hydro_observations","source":"https://allemannsdata.com/wiki/api/v1/kilder/nve","wiki":"https://allemannsdata.com/wiki/kilder/nve/get_hydro_observations/","feedback":"https://allemannsdata.com/wiki/api/v1/feedback"}}}