---
license: cc-by-sa-4.0
tags:
- earth-observation
- remote-sensing
- satellite
- geospatial
size_categories:
- 1M<n<10M
---

# WORK IN PROGRESS...



# Spatial-Reference-Grid
> The MajorTom spatial reference grid is now available as spatial data, provided in both GeoParquet and GeoPackage formats.
> It is a global grid containing 5,091,140 cells.
> 
![image](https://cdn-uploads.huggingface.co/production/uploads/66aa04a381dd5b0fe363b4da/tAsHyVdiuPd2WHWG5CglJ.png)

## Metadata content
| Field           | Type   | Description                                                                 |
|:-----------------:|:--------:|-----------------------------------------------------------------------------|
| grid_cell       | string | Major TOM cell                                                              |
| grid_row_u      | int    | Major TOM cell row                                                          |
| grid_col_r      | int    | Major TOM cell col                                                          |
| utm_crs         | string | CRS of the original product                                                 |
| centre_lat      | float  | Centre of the of the grid_cell latitude                                     |
| centre_lon      | float  | Centre of the of the grid_cell  longitude                                   |
| utm_footprint   | string | Polygon footprint (image UTM) of the grid_cell                              |
| geometry        | geometry | Polygon footprint (WGS84) of the grid_cell                                |
| geotransform        | array | geotransform of the footprint                                |


## Example Use
Interface scripts are available at
```python
import geopandas as gpd

gdf_pq = gpd.read_parquet("MT_grid_10km_global.parquet")
gdf_pq.head(5)

gdf_gpkg = gpd.read_file("MT_grid_10km_global.gpkg", layer="MT")
gdf_gpkg.head(5)

```


## Authors
[**Mikolaj Czerkawski**](https://mikonvergence.github.io) (Asterisk Labs), [**Marcin Kluczek**](https://www.linkedin.com/in/marcin-kluczek-03852a1a8/) (CloudFerro), [**Jędrzej S. Bojanowski**](https://www.linkedin.com/in/j%C4%99drzej-s-bojanowski-a5059872/) (CloudFerro)


##  Open Access Manuscript
[![arxiv](https://img.shields.io/badge/Open_Access-arxiv:2402.12095-b31b1b)](https://arxiv.org/abs/2402.12095/)
```latex
@inproceedings{Major_TOM,
  title={Major TOM: Expandable Datasets for Earth Observation}, 
  author={Alistair Francis and Mikolaj Czerkawski},
  year={2024},
  booktitle={IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium}, 
  eprint={2402.12095},
  archivePrefix={arXiv},
  primaryClass={cs.CV}
}
```


Powered by [Φ-lab, European Space Agency (ESA) 🛰️](https://philab.esa.int/) in collaboration with [CloudFerro 🔶](https://cloudferro.com/) & [asterisk labs](https://asterisk.coop/)