skyfull-chamonix-rescue-v1

Rescue drone trajectory dataset over real Chamonix terrain (Haute-Savoie, France). Generated with Skyfull — a geo-scale simulation platform for physical intelligence.

What makes this different

No pixels. No camera. Pure XYZ coordinates.

The terrain is encoded as an implicit neural function (TerrainNet), not a texture or image. Every trajectory is a sequence of (lon, lat, alt_m) waypoints computed analytically, then used as supervised signal for a tiny policy MLP.

This is the same principle as LeRobot — collect → train → deploy — but the "lab" is a real Alpine mountain range and the "robot" is a rescue drone.

Tile

Region	Chamonix, Haute-Savoie, France
Bounds	lat [45.86, 45.975] lon [6.8, 6.99]
Terrain source	AWS Terrarium tiles, zoom 12 (~26 m/px)
Terrain model	TerrainNet — 4k-param MLP, 37 KB
City base	Chamonix (6.8700°, 45.9240°)

Dataset

Episodes	10,000
Steps per episode	40
Observation	(lon, lat, alt_m) — 3 floats per step
Trajectory shape	(40, 3) float32
Victim min elevation	1800 m
Terrain clearance	80 m minimum
Total size	~5 MB
Terrain violations	0 / 10,000

Files

File	Shape	Description
episodes.npy	(10000, 40, 3) float32	Full trajectories: lon, lat, alt_m per step
victims.npy	(10000, 3) float32	Victim locations: lon, lat, elev_m
dataset_info.json	—	Schema, tile metadata, generation params

Quick start

import numpy as np
from huggingface_hub import hf_hub_download

episodes = np.load(hf_hub_download("Ethgar/skyfull-chamonix-rescue-v1", "episodes.npy", repo_type="dataset"))
victims  = np.load(hf_hub_download("Ethgar/skyfull-chamonix-rescue-v1", "victims.npy",  repo_type="dataset"))

print(episodes.shape)   # (10000, 40, 3)
print(victims.shape)    # (10000, 3)

Companion model

Trained policy: Ethgar/skyfull-policy-chamonix-rescue-v1

Input: (victim_dlon, victim_dlat, victim_elev) — 3 floats Output: full trajectory (40, 3) — planned in < 2 ms on CPU

Skyfull tile library

Tile	Region	Repo
Aosta Valley	Valle d'Aosta, Italy	Ethgar/skyfull-aosta-valley-rescue-v1
Chamonix	Haute-Savoie, France	Ethgar/skyfull-chamonix-rescue-v1

Cite

@misc{skyfull-chamonix-rescue-v1,
  author       = {Ethgar},
  title        = {Skyfull: Chamonix rescue drone dataset},
  year         = {2026},
  publisher    = {HuggingFace},
  howpublished = {\url{https://huggingface.co/datasets/Ethgar/skyfull-chamonix-rescue-v1}},
}