{"name": "WaterQual", "package_name": "water_qual", "description": "Sentinel-2 water quality monitoring for lakes, reservoirs, and other inland/coastal waterbodies \u2014 chlorophyll-a and turbidity proxies (NDCI, NDTI) plus calibrated chlorophyll-a estimators (OC3, Gilerson), no account or API key required.", "about": "Searches Microsoft Planetary Computer for the least-cloudy Sentinel-2 L2A scene over a waterbody and date you choose, masks clouds/shadows and non-water pixels, and computes one of four water-quality algorithms: NDCI (unitless chlorophyll-a proxy), NDTI (unitless turbidity proxy), OC3 (calibrated chlorophyll-a for clear water), or Gilerson (calibrated chlorophyll-a for turbid water). Works on lakes, reservoirs, ponds, and other water surfaces large enough for a stable sample at Sentinel-2's 10m resolution. Saves a georeferenced index GeoTIFF plus a report with summary statistics, and can optionally also save the raw RGB+NIR+SWIR imagery alongside it for visual monitoring. No sign-in or API key needed \u2014 Sentinel-2 is in Planetary Computer's open, public collection tier.", "homepage": "https://github.com/iliasmachairas/WaterQual", "repository": "https://github.com/iliasmachairas/WaterQual", "tracker": "https://github.com/iliasmachairas/WaterQual/issues", "author": "Ilias Machairas, Ashish Kuruvila", "tags": ["sentinel-2", "water quality", "lakes", "reservoirs", "inland waters", "chlorophyll", "turbidity", "ndci", "ndti", "oc3", "gilerson", "remote sensing", "planetary computer", "limnology"], "downloads": 19, "latest_version": "0.1.1", "versions": [{"version": "0.1.1", "experimental": true, "qgis_min": "3.0.0", "qgis_max": "3.99.0", "downloads": 19, "uploaded_by": "iliasmachairas", "upload_datetime": "2026-08-28T12:43:35.216116"}]}