---
license: cc0-1.0
---

# Tessera Sample Dataset

This dataset is a **small sample of the Tessera dataset** developed by the **University of Cambridge Earth Observation Group**.  
This sample is intended for testing workflows, experimentation, and demonstration purposes.

**Original Tessera dataset:** [GitHub Repository](https://github.com/ucam-eo/tessera)  


## Dataset Overview

TESSERA (Temporal Embeddings of Surface Spectra for Earth Representation and Analysis) encodes **spatio-temporal information from Earth observation data** into compact embeddings.  
This sample dataset provides:

- **Global coverage at 0.1° resolution**
- **Time-specific embeddings** per grid tile (year 2024)  
- **128-dimensional vector per pixel**, capturing spectral, spatial, and temporal properties  
- **Grid-based organization**, allowing easy selection of spatial subsets  


## Dataset Structure

The dataset is organized as follows:

```text
tessera_sample/
├── train/
│   └── global_0.1_degree_representation/
│       └── 2024/
│           ├── grid_-94.65_40.75/
│           │   └── grid_-94.65_40.75_2024.tiff
│           ├── grid_-94.75_40.75/
│           │   └── grid_-94.75_40.75_2024.tiff
│           └── grid_-94.85_40.75/
│               └── grid_-94.85_40.75_2024.tiff
└── val/
    └── global_0.1_degree_representation/
        └── 2024/
            └── grid_-94.95_40.75/
                └── grid_-94.95_40.75_2024.tiff
```

- Each folder corresponds to a **geospatial grid tile**.
- File naming format: `grid_<longitude>_<latitude>_<year>.tiff`.