README.md

---
title: AlgaeGuard — HAB Detection from Orbit
emoji: 🛰️
colorFrom: blue
colorTo: green
sdk: gradio
sdk_version: "5.29.0"
app_file: app.py
pinned: true
license: cc-by-4.0
models:
  - debrajsingha/algaeguard-lfm2-5-vl-450m
datasets:
  - debrajsingha/algaeguard-hab-ndci
tags:
  - satellite
  - remote-sensing
  - harmful-algal-bloom
  - water-quality
  - vision-language-model
  - sentinel-2
  - environmental-monitoring
---

# AlgaeGuard — Autonomous HAB Detection from Orbit

Fine-tuned **LFM2.5-VL-450M** on Sentinel-2 NDCI imagery for sub-90-minute
Harmful Algal Bloom alerts — directly from the satellite, before the crisis hits.

## Features

- **Live Demo** — 218 real Sentinel-2 observations across 6 water bodies
- **Historical HAB Timeline** — interactive bloom severity charts (2022–2024)
- **Custom Inference** — upload any NDCI colormap or fetch live from SimSat
- **ZeroGPU inference** — ~4s per assessment on GPU

## Optional: Live Satellite Fetch

Set the `SIMSAT_API_URL` Space secret to enable live Sentinel-2 data fetch
for any coordinates on Earth via [SimSat](https://github.com/debpks/SimSat).