Update README.md

README.md

@@ -1,3 +1,89 @@
 ---
 license: cc-by-sa-4.0
+tags:
+- earth-observation
+- remote-sensing
+- sentinel-1
+- sar
+- synthethic-aperture-radar
+- satellite
+size_categories:
+- 1M<n<10M
+dataset_info:
+- config_name: default
+  features:
+  - name: product_id
+    dtype: string
+  - name: grid_cell
+    dtype: string
+  - name: product_datetime
+    dtype: string
+  - name: thumbnail
+    dtype: image
+  - name: vv
+    dtype: binary
+  - name: vh
+    dtype: binary
+configs:
+- config_name: default
+  data_files: images/*.parquet
+- config_name: metadata
+  data_files: metadata.parquet
 ---
+
+# Core-S1RTC
+
+Contains a global coverage of Sentinel-1 (RTC) patches, each of size 1,068 x 1,068 pixels.
+
+| Source | Sensing Type | Number of Patches | Patch Size | Total Pixels |
+|--------|--------------|-------------------|------------|--------------|
+|Sentinel-1 RTC | Synthetic Aperture Radar |1,469,955|1,068 x 1,068 (10 m) | > 1.676 Trillion |
+
+## Content
+
+| Column | Details | Resolution |
+|--------|---------|------------|
+| VV | Received Linear Power in the VV Polarization | 10m | 
+| VH | Received Linear Power in the VV Polarization | 10m | 
+| thumbnail | RGB composite [B04, B03, B02] saved as png | 10m | 
+
+## Spatial Coverage
+This is a global monotemporal dataset. Nearly every piece of Earth captured by Sentinel-1 is contained at least once in this dataset (and only once, excluding some marginal overlaps). The coverage is about 35% lower than for Core Sentinel-2 dataset due to the sensor coverage limitations.
+
+## Example Use
+
+Interface scripts are available at https://github.com/ESA-PhiLab/Major-TOM
+
+Here's a sneak peek with a thumbnail image:
+```python
+from fsspec.parquet import open_parquet_file
+import pyarrow.parquet as pq
+from io import BytesIO
+from PIL import Image
+
+PARQUET_FILE = 'part_03900' # parquet number
+ROW_INDEX = 42 # row number (about 500 per parquet)
+
+url = "https://huggingface.co/datasets/Major-TOM/Core-S1RTC/resolve/main/images/{}.parquet".format(PARQUET_FILE)
+with open_parquet_file(url,columns = ["thumbnail"]) as f:
+    with pq.ParquetFile(f) as pf:
+        first_row_group = pf.read_row_group(ROW_INDEX, columns=['thumbnail'])
+
+stream = BytesIO(first_row_group['thumbnail'][0].as_py())
+image = Image.open(stream)
+```
+
+## Cite
+[![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},
+  eprint={2402.12095},
+  archivePrefix={arXiv},
+  primaryClass={cs.CV}
+}
+```
+
+Powered by [Φ-lab, European Space Agency (ESA) 🛰️](https://huggingface.co/ESA-philab)