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# ESA WorldCover

![Header Thumbnail](/data/public-data/other-datasets/south-romania.webp)

The ESA WorldCover product provides global land cover maps for 2020 and 2021. By combining the strengths of both Sentinel-1 (SAR) and Sentinel-2 (optical), it achieves a more consistent global result than optical-only products. The 2020 version (v100) and 2021 version (v200) use slightly different algorithms, so users should exercise caution when performing direct change detection between the two years.

## Data Availability & Collections

The WorldCover map is accessible via the [Planet Insights Platform](https://insights.planet.com/) as a Bring Your Own COG (BYOC) collection.

* **Collection ID**: `0b940c63-45dd-4e6b-8019-c3660b81b884`

* **Update Frequency**: Annual (2020 and 2021 currently available).

## Basic Facts

| Property                | Value                                                     |
| ----------------------- | --------------------------------------------------------- |
| **Sensor**              | Sentinel-1 (C-SAR) and Sentinel-2 (MSI)                   |
| **Spatial Resolution**  | 10 m                                                      |
| **Geographic Coverage** | Global                                                    |
| **Coordinate System**   | WGS 84 (EPSG:4326)                                        |
| **Data Format**         | Cloud Optimized GeoTIFF (COG)                             |
| **Temporal Coverage**   | 2020, 2021                                                |
| **License**             | [CC-BY 4.0](https://creativecommons.org/licenses/by/4.0/) |
| **Provider**            | **Planet**                                                |

## Band Information

The collection contains the main classification map and a multi-band quality layer.

| Name             | Description                                                                        |
| ---------------- | ---------------------------------------------------------------------------------- |
| **Map**          | Main discrete classification according to FAO LCCS scheme (11 classes).            |
| **InputQuality** | 3-band layer indicating the number and quality of S1 and S2 inputs used per pixel. |

## Class Definitions

The `Map` band contains the following 11 land cover classes:

| Value   | Label                    | Color     |
| ------- | ------------------------ | --------- |
| **10**  | Tree cover               | `#006400` |
| **20**  | Shrubland                | `#ffbb22` |
| **30**  | Grassland                | `#ffff4c` |
| **40**  | Cropland                 | `#f096ff` |
| **50**  | Built-up                 | `#fa0000` |
| **60**  | Bare / sparse vegetation | `#b4b4b4` |
| **70**  | Snow and ice             | `#f0f0f0` |
| **80**  | Permanent water bodies   | `#0064c8` |
| **90**  | Herbaceous wetland       | `#0096a0` |
| **95**  | Mangroves                | `#00cf75` |
| **100** | Moss and lichen          | `#fae6a0` |

## Accessing the Data

### Planet Insights Platform API

To access the data programmatically:

* **Endpoint**: `services.sentinel-hub.com`

* **Collection Type**: `byoc-0b940c63-45dd-4e6b-8019-c3660b81b884`

### Visualization Script (Evalscript)

Use the following script to visualize the WorldCover map with its standard color palette:

```
// VERSION=3

// ESA WorldCover Visualization Script

const colormap = [

  [10, 0x006400], // Tree cover

  [20, 0xffbb22], // Shrubland

  [30, 0xffff4c], // Grassland

  [40, 0xf096ff], // Cropland

  [50, 0xfa0000], // Built-up

  [60, 0xb4b4b4], // Bare / sparse vegetation

  [70, 0xf0f0f0], // Snow and ice

  [80, 0x0064c8], // Permanent water bodies

  [90, 0x0096a0], // Herbaceous wetland

  [95, 0x00cf75], // Mangroves

  [100, 0xfae6a0], // Moss and lichen

];



const visualizer = new ColorMapVisualizer(colormap);



function setup() {

  return {

    input: ['Map', 'dataMask'],

    output: { bands: 3 },

  };

}



function evaluatePixel(samples) {

  return visualizer.process(samples.Map);

}
```

## Attribution

© ESA WorldCover project / Contains modified Copernicus Sentinel data (2020/2021) processed by ESA WorldCover consortium.