# Data Dictionary - European Cross-Border Gas Flows - daily by interconnection point, cleaned Parquet

**Units:** vary by `direction` - read the per-row `unit` column (overall: GWh/d).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Interconnection point / border |
| `ts` | timestamp (UTC) | Gas day |
| `direction` | str | entry / exit |
| `flow` | float | Physical flow, GWh/day |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (daily = 1440) |

*Source: ENTSOG Transparency Platform.*