EU Reservoir Storage Records — EEA WISE

Keyless. Pay per record. Europe's reported reservoir inventory and storage — by water body and date, in the source units, verbatim.

This actor turns the European Environment Agency (EEA) WISE State of Environment (Waterbase) reservoir dataset into clean, per-record data — Europe's reported reservoir inventory and storage, by water body and date. Each run reads the EEA's keyless DiscoData SQL service and delivers one row per reservoir observation, structured for water-storage and drought-resilience analysis, reusable with acknowledgement of the EEA, with no personal data of any kind.

What this is, in one paragraph

The EEA compiles national reporting on reservoirs — the artificial and regulated water bodies that store water for supply, power, and flood control — into the WISE State of Environment (Waterbase) reservoir dataset. This actor reads that table and delivers one record per water body / observed-property / period: the country and water body, the observed-property CODE (for example, reservoir inventory) carried verbatim, the time period and reference year, the observed VALUE in the source units verbatim, and the observation-STATUS flag. It is the stored-water layer of Europe's water balance — the buffer between supply and demand.

Who buys this and for what job

• Water-storage and supply analysts tracking reservoir inventory and volumes by water body
• Drought-resilience and planning teams sizing the stored-water buffer across basins
• Researchers studying reservoir storage across Europe and over time
• Data engineers who want the WISE reservoir-data table as clean rows from a keyless source.

EEA licence — reuse with acknowledgement

One licence rider travels on every record. EEA data may be reused, including commercially, provided the source is acknowledged: "Source: European Environment Agency (EEA)." Where third-party content is marked, it keeps its own terms. These are reported values and labels as filed — not a compliance verdict.

Water-body grain — no person data

The unit of every record is a reservoir observation for a water body — a stored-water figure, never a person. The water body is a location code; there is no contact, operator, or responsible-person field in the source, and none is selected or emitted; the free-text remark and metadata narrative fields are excluded at field selection. A person-key guard runs on every record as a backstop.

Sample output

Real rows from a live run of this actor (first 5 rows, selected columns).

One full record from the same run, exactly as delivered:

{
  "record_id": "BERW17_MM39R:RINV:2000",
  "country_code": "BE",
  "water_body_identifier": "BERW17_MM39R",
  "water_body_identifier_scheme": "euSurfaceWaterBodyCode",
  "observed_property": "RINV",
  "time_period": "2000",
  "year": "2000",
  "observed_value": null,
  "observation_status": "M",
  "source": "EEA WISE State of Environment (Waterbase) — reservoir data",
  "source_url": "https://discodata.eea.europa.eu/",
  "licence": "European Environment Agency (EEA) WISE State of Environment (Waterbase) — reservoir inventory and storage. Reuse is permitted, including for commercial purposes, provided the source is acknowledged: 'Source: European Environment Agency (EEA)'. Third-party content, where marked, keeps its own terms.",
  "attribution": "Source: European Environment Agency (EEA), WISE State of Environment (Waterbase).",
  "disclaimer": "Reported reservoir inventory and storage by water body and date from the EEA WISE State of Environment (Waterbase) reservoir dataset. Each record carries the water body, the observed-property CODE (e.g. reservoir inventory) VERBATIM, the time period, the observed VALUE in the SOURCE UNITS verbatim, and the observation-STATUS flag. Water-body grain — there is no contact, operator, or responsible-person field in the source, and none is selected or emitted (free-text remark fields excluded at field selection); a person-key guard runs on every record as a backstop.",
  "observed_at": "2026-09-25T17:33:45Z"
}

Pricing

Event	Free plan	Bronze	Silver	Gold / Platinum / Diamond
reservoir_storage_record	$0.05	$0.045	$0.04	$0.0335

Delivered before charged. Blocked runs and empty results cost nothing.

Input

Field	Type	Default	Description
countryCode	string	—	Optional 2-letter country code (e.g. DE, FR).
year	integer	—	Optional reference year to filter.
maxRecords	integer	10	Ceiling on records delivered and billed.

Default changed on 30 Sep 2026: if you leave maxRecords out, a run now returns up to 10 records (it was 500). Set maxRecords yourself to get more — the maximum is unchanged.

Output

One JSON object per reservoir observation. Real example (values as reported):

{
  "record_id": "ATWB0001:reservoir inventory:2016",
  "country_code": "AT",
  "water_body_identifier": "ATWB0001",
  "water_body_identifier_scheme": "eionetSchema",
  "observed_property": "reservoir inventory",
  "time_period": "2016",
  "year": "2016",
  "observed_value": 9.9,
  "observation_status": "A",
  "source": "EEA WISE State of Environment (Waterbase) \u2014 reservoir data",
  "source_url": "https://discodata.eea.europa.eu/",
  "observed_at": "2026-08-23T00:00:00Z"
}

An unbilled RUN_RECEIPT records the robots check, the filters, rows seen and delivered, and whether charged equals delivered.

Field reference

Each record is one reservoir observation. Identity: record_id, country_code, water_body_identifier, and water_body_identifier_scheme. Property and period: observed_property (the CODE, verbatim), time_period, and year. Measurement: observed_value (in the source units) and observation_status. Provenance travels on every record: source, source_url, licence, attribution, disclaimer, and observed_at.

How a run works

A run first re-reads the source host's robots posture from your runtime — the EEA DiscoData host — and stops at the door if that ever changes. It pages the WISE reservoir-data table (filtered to your optional countryCode and optional year), and flattens each row to one record — carrying every value and label verbatim, never anything person-shaped — delivered before it is charged, so a blocked or empty run costs you nothing. The actor stops at your maxRecords ceiling and records charge_equals_delivered in the receipt.

Coverage and scope

The table holds on the order of 90,875 rows. Because each record carries the country_code, the water body, the observed-property code, and the year, segmenting is straightforward. Pull one slice, or the whole table to seed a warehouse.

Working with the data

The reservoir records are a storage ledger, and the fields make them comparable. Because every record pairs an observed_property code with an observed_value at a water_body_identifier, an analyst can profile a basin's reservoir inventory and storage without unit-guessing — the value travels in the source units, and the observation_status flag marks provisional or estimated figures. The year frames each value in time, so storage trends and inventory changes assemble directly.

Identifiers and joins

Every record carries the water_body_identifier and country_code, keying each reservoir observation to the fleet's abstraction and return-flow cells for the same spatial context, and to the WFD water-body cells where the same body identifiers appear — so stored water can be read alongside withdrawals, returns, and status.

Inventory versus flow

A reservoir figure is a STOCK — how much water is held, or the inventory of reservoirs — whereas abstraction and return figures are FLOWS: water moving in and out over a period. This cell reads the reservoir stock table; the abstraction and return cells read the flow tables. Pulling all three and joining on the spatial context lets a buyer relate the stored buffer to the withdrawals drawn from it and the returns feeding it — the stock-and-flow picture of a basin's managed water.

Cost guidance

One reservoir_storage_record per delivered row: cost = rows delivered × your plan's per-record price. Scope with countryCode and optional year to keep runs bounded. 1,000 rows is $50 (Free) / $33.50 (Gold).

Honest limitations

• As reported. Values, labels, and flags are as filed; this actor reformats, it does not audit or recompute.
• A label, not a verdict. These are reported values and classifications, not an independent compliance or conservation assessment.
• Acknowledge the EEA. The acknowledgement travels on every record.
• No person data of any kind.

Differentiation

It is distinct from eu-water-abstraction-records and eu-water-return-flow-records — those cells carry FLOWS (water withdrawn and water returned over a period), while this cell carries the reservoir STOCK (inventory and storage held); stock vs flow. Its specific job is the WISE reservoir inventory and storage by water body and date.

The NexGen Signal family

Part of the NexGen Signal family of pay-per-record data products:

• EU Reservoir Storage Records — EEA WISE
• EU Water Return Flow Records — EEA WISE
• EU Water Emission Load Records — EEA WISE
• EU Riverine Pollutant Load Records — EEA WISE
• EU Surface Water Chemical Status Records — EEA WISE

Source: European Environment Agency (EEA), WISE State of Environment (Waterbase) (discodata.eea.europa.eu). EEA data may be reused, including commercially, provided the source is acknowledged: "Source: European Environment Agency (EEA)"; marked third-party content keeps its own terms. Water-body / property / period grain; the water body is a location code; free-text remark/metadata fields excluded, no contact/operator/responsible-person field selected or emitted. No natural-person data of any kind. Values and labels as filed, not a compliance verdict.