# Data Dictionary - European Gas Balance & Supply-Stress Panel - daily by country, derived Parquet

**Units:** vary by `variable` - read the per-row `unit` column (overall: mixed).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | ISO country |
| `ts` | timestamp (UTC) | Gas day |
| `variable` | str | Metric |
| `value` | float | Value |
| `unit` | str | Unit (mixed) |
| `res_min` | int | Native resolution (daily) |

*Source: Gas Infrastructure Europe (GIE) - AGSI+ / ALSI.*