---
pretty_name: Hungary Crop Fields (GeoParquet, EUCROPMAP 2022)
tags:
  - geospatial
  - agriculture
  - crop-mapping
  - polygons
  - geojson
  - geoparquet
  - earth-engine
license: other  # Derived from JRC EUCROPMAP; see "Licensing" below
language:
  - en
---

# Hungary Crop Fields (GeoParquet, EUCROPMAP 2022)

## Dataset Summary

Vector polygons of crop **fields in Hungary** derived from **EUCROPMAP 2022** and packaged as a compact **GeoParquet**.  
Each feature has a stable `field_id`, crop `field_type` (sunflower or rapeseed), the ADM1 `region` (ASCII slug), and the polygon geometry in **EPSG:4326**. Convenience bounding-box columns (`minx`, `miny`, `maxx`, `maxy`) are included to enable fast spatial indexing without loading full geometries.

**What this is:** geometry for fields (one record per field).  
**What this is not:** time series. Pair it with your raster-to-point or gridded time-series (e.g., ERA5-Land, Sentinel-2 aggregates) and assign per-date features to fields via a spatial join.

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## Contents

- **Country:** Hungary  
- **Source:** JRC/D5/EUCROPMAP/V1 (layer: `EU27_2022`)  
- **Year (polygons):** `2022` (`poly_year = 2022`)  
- **Scale:** 10 m (EUCROPMAP native resolution)  
- **Crops:** `sunflower` (code 231), `rapeseed` (code 232)  
- **Minimum field size kept:** `>= 0.05 ha` (500 m²)  
- **Regions (ADM1):**  
  `["Bacs-kiskun","Baranya","Bekes","Borsod-abauj-zemplen","Budapest","Csongrad","Fejer","Gyor-moson-sopron","Hajdu-bihar","Heves","Jasz-nagykun-szolnok","Komarom-esztergom","Nograd","Pest","Somogy","Szabolcs-szatmar-bereg","Tolna","Vas","Veszprem","Zala"]`

**File(s)**
- `hungary_fields.parquet` — GeoParquet with (WKB) geometry in EPSG:4326 and bbox columns.

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## Schema

| column      | type     | description                                                                                |
|-------------|----------|--------------------------------------------------------------------------------------------|
| `field_id`  | string   | Stable per-feature id                  |
| `poly_year` | int      | Polygon vintage (always `2022`).                                                           |
| `field_type`| string   | Crop type: `sunflower` or `rapeseed`.                                                      |
| `region`    | string   | ADM1 ASCII slug (e.g., `Bacs-kiskun`).                                                     |
| `geometry`  | geometry | Polygon in EPSG:4326 (WKB inside Parquet).                                                 |
| `lon_min`      | float    | Bounding box min longitude.                                                                |
| `lat_min`      | float    | Bounding box min latitude.                                                                 |
| `lon_max`      | float    | Bounding box max longitude.                                                                |
| `lat_max`      | float    | Bounding box max latitude.                                                                 |

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