NVE HydAPI
Hydrological stations and observations for water level, discharge, temperature, snow and groundwater.
Explore in the wiki
Related sources
- Weather and natural hazards – Flood and avalanche warnings from NVE Varsom for a coordinate.
- Vann-nett water bodies – Water Framework Directive status for the same rivers and lakes.
All lookup operations
Open HTML operations for navigation. The JSON link for each operation is only for programmatic data access.
Building software or a dashboard? List operation names as JSON, then open the selected operation's descriptor before fetching data.
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list_parameters– List NVE hydrological parameters with identifiers, names and units.
HTML GET template -
search_stations– Find NVE hydrological stations and their available time series.
HTML GET template -
get_station– Get metadata and available series for one NVE station id.
HTML GET template -
get_observations– Get observations for one NVE station and parameter.
HTML GET template -
get_reservoir_levels– Get the latest reservoir fill level for Norway as a whole and for each elspot price area (NO1 to NO5).
HTML GET template -
get_reservoir_history– Get weekly reservoir fill history for one area.
HTML GET template -
get_reservoir_min_max_median– Get historical min / max / median fill levels per week for one area, computed by NVE over the reference period. Perfect as the shaded background band in a reservoir chart.
HTML GET template -
list_hydro_parameters– List the hydrological parameters HydAPI can return (water flow, level, temperature, precipitation, etc.) with their numeric ids and units.
HTML GET template -
find_hydro_stations– Find NVE hydrological measuring stations by name/area filters and/or near a coordinate, and see which time series (parameters + resolutions) each one offers.
HTML GET template -
get_hydro_observations– Get a hydrological time series for a station.
HTML GET template -
get_hydro_percentiles– Get day-of-year percentile bands (the seasonal "normal") for a station's parameter, computed by NVE over the station's full record. Use them as the reference band to judge whether an observed value is high or low for the time of year, e.g. is inflow above or below normal right now.
HTML GET template -
get_snow_and_inflow– Get modelled snow reservoir and inflow at a point from NVE's seNorge grid model (1x1 km, all of Norway; no API key). These are the hydrological fundamentals behind hydropower value in a catchment.
HTML GET template
Programmatic access
First confirm the operation and parameters in HTML, then use the read-only JSON API.
Does the client support MCP? Find the corresponding Allemannsdata server and registered tools.
How an AI agent should use this page
Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.
How to use NVE HydAPI
Hydrological stations and observations for water level, discharge, temperature, snow and groundwater. Choose a search lookup first when you lack an identifier; use a detail lookup when you already have a stable ID.
- Read requirements, cache time and known usage limits.
- Open the lookup and use the HTML GET template.
- Follow normalized result links onward; use JSON only for structured data work.
Related sources and scope
- Combine hydrological observations with weather/natural hazards on the place page. Check the parameter and quality code.
AI agent? Read the complete navigation and programming guide.