Processes

The Open Climate Service exposes two complementary processing interfaces:

• openEO process graphs — the primary interface for data analysis. Submit a DAG of composable operations via POST /result (synchronous) or POST /jobs (batch). 120+ standard processes are available out of the box. See the openEO guide.
• Plugin processes — custom named processes registered via the @process decorator, discoverable at GET /processes and callable directly by process_id in any openEO process graph. See Extensibility — Processes.

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Temporal resampling

Temporal resampling (e.g. daily → monthly, hourly → daily) is handled by the standard openEO aggregate_temporal_period process:

{
  "process_graph": {
    "load": {
      "process_id": "load_collection",
      "arguments": { "id": "era5land_temperature_hourly" }
    },
    "resample": {
      "process_id": "aggregate_temporal_period",
      "arguments": {
        "data": { "from_node": "load" },
        "period": "day",
        "reducer": {
          "process_graph": {
            "mean": {
              "process_id": "mean",
              "arguments": { "data": { "from_parameter": "data" } },
              "result": true
            }
          }
        }
      },
      "result": true
    }
  }
}

See the openEO guide and the openEO process specification for the full parameter reference.