# Data Dictionary - European Weather by Power-Market Zone - daily 15-parameter panel (+ soil moisture & hub-height wind), cleaned Parquet

**Units:** vary by `metric` - read the per-row `unit` column (overall: mixed (°C / m·s⁻¹ / kWh·m⁻²·day⁻¹)).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | ENTSO-E power-market zone code |
| `ts` | timestamp (UTC) | Day |
| `metric` | str | Air temperature (mean/max/min) / Wind speed / Solar irradiance / Relative humidity / Dew point / Precipitation / Surface pressure / Soil moisture (surface/root-zone/profile) |
| `value` | float | Value in the metric's native unit |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (daily = 1440) |


## Coverage note

The file runs to **2026-07-29**, but 1 of 15 `metric` values stop earlier. This reflects the upstream publication schedule, not a gap in processing - the remaining values are current.

| metric | last value | behind by |
|---|---|---|
| `Cloud amount` | 2026-05-30 | 60 days |
*Source: NASA POWER Project (NASA Langley Research Center).*