---
task_categories:
- zero-shot-classification
language:
- en
---
# Dataset Card for Dataset Name

<!-- Provide a quick summary of the dataset. -->

We downloaded satellite images from Major-TOM, filtered for Germany, and processed them into vector embeddings.

## Datasource Details
|               | Value                                   |
|---------------|-----------------------------------------|
| Datasource    | Major-TOM/Core-S2L2A                    |
| Region        | box(5.98865807458, 47.3024876979, 15.0169958839, 54.983104153) (Covers whole of Germany) |
| Date Range    | ('2020-01-01', '2025-01-01')            |
| Cloud Cover   | (0, 10)                                 |
| No Data       | (0.0, 0.0)                               |


<!-- Provide a longer summary of what this dataset is. -->
**Metadata.paraquet File**

This dataset shows the relationship between our embeddings/vectors and Major TOM images for fast linking to other Major TOM datasets.

**Embedding.dat**

This dataset has the vector embeddings calculated by us.

What we did was:

a) to vectorise the entire Major-TOM image data for Germany;

b) used the OPENCLIP_SIGCLIP_400M on the Quasara Platform for embedding generation

c) no pre-training, no labelling happened in the preparation of this dataset

## Uses

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# MajorTOM-DE Dataset

The **MajorTOM-DE dataset** provides embeddings derived from high-resolution satellite images of the Germany region, generated using the OpenCLIP SigLIP model. These embeddings, extracted from images covering a range of geographic coordinates across Germany, provide a powerful tool for various applications.

## Dataset Information

- **Coordinates Info:** The embeddings cover a range of geographic coordinates across the Germany region.
- **Related Dataset:** The MajorTOM-DE dataset is closely related to the original **S2L2A** dataset.

## Features

The MajorTOM-DE dataset leverages CLIP's ability to relate textual descriptions to visual data, enabling more intuitive searches and analysis. This allows users to search among images using text-based queries effectively.

## Applications

The MajorTOM-DE dataset can be utilized for various applications, including:

- **Monitoring Changes in Land Use and Land Cover:**
  - Track deforestation
  - Observe urban expansion
  - Monitor water body dynamics

- **Precision Agriculture:**
  - Analyze crop health
  - Predict yields
  - Plan harvests

- **Climate Research:**
  - Study climate patterns
  - Monitor changes and impacts on regional and local levels


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## Dataset Structure

<!-- This section provides a description of the dataset fields, and additional information about the dataset structure such as criteria used to create the splits, relationships between data points, etc. -->

**Metadata.paraquet**
| Column         | Explanation                                                                                   |
|----------------|-----------------------------------------------------------------------------------------------|
| grid_cell      | Coordinates in the Major TOM grid, enabling fast linking to other Major TOM datasets.         |
| grid_row_u     | Row identifier in the Major TOM grid for linking purposes.                                     |
| grid_row_r     | Another row identifier in the Major TOM grid for linking purposes.                              |
| centre_lat     | Latitude of the center of the image portion for which embedding has been computed.             |
| centre_lon     | Longitude of the center of the image portion for which embedding has been computed.            |
| timestamp      | Date and time of the original product in the %Y%m%dT%H%M%S format.                             |
| dat_row        | Row number in the .dat file associated with the data entry.                                    |
| unique_id      | Unique identifier combining grid_cell, timestamp, and possibly other parameters (e.g., parquet).|

**Embedding.dat**

| Column        | Explanation                                                                                         |
|---------------|-----------------------------------------------------------------------------------------------------|
| ID            | ID of the image/image part for which the embedding was calculated.                                   |
| dat_row       | Row in the .dat file that can be used to match the embeddings to the MajorTOM datasets via metadata.paraquet dataset. |
| image_type    | Each image is split into 70 segments and vectorized. |
| coordinates   | Coordinates in the image that define the segment that was vectorized. Full images have no coordinates. |
| split_configs | Quasara auto split configuration |
| embeddings    | Vectors calculated from the image/image segment.                                                     |