{
  "catalog": "https://earth-search.aws.element84.com/v1/search",
  "collection": "sentinel-2-c1-l2a",
  "formula_ndmi": "(B8A-B11)/(B8A+B11)",
  "formula_ndvi": "(B08-B04)/(B08+B04)",
  "seasons": {
    "summer": "July 1\u2013September 15, 2023\u20132026",
    "autumn": "October\u2013November, 2023\u20132025"
  },
  "seasonal_comparison": "For the same calendar years, compare the median of yearly autumn NDMI with the median of yearly summer NDMI. At least two paired years per cell. Autumn is usually wetter locally but image dates are not certified wet conditions. Diagnostic only, excluded from the score.",
  "clear_scl_classes": [
    4,
    5
  ],
  "scene_dates": [
    {
      "season": "summer",
      "id": "S2A_T34TCN_20230911T094802_L2A",
      "date": "2023-09-11T09:48:47.156000Z",
      "cloud_cover_scene_percent": 0.00077
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20230725T092859_L2A",
      "date": "2023-07-25T09:38:51.596000Z",
      "cloud_cover_scene_percent": 0.099587
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20230713T094420_L2A",
      "date": "2023-07-13T09:48:47.386000Z",
      "cloud_cover_scene_percent": 0.124578
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20230804T092858_L2A",
      "date": "2023-08-04T09:38:50.291000Z",
      "cloud_cover_scene_percent": 0.506079
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20240727T094822_L2A",
      "date": "2024-07-27T09:48:44.861000Z",
      "cloud_cover_scene_percent": 0.000392
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20240707T094035_L2A",
      "date": "2024-07-07T09:48:45.758000Z",
      "cloud_cover_scene_percent": 0.00078
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20240826T094755_L2A",
      "date": "2024-08-26T09:48:40.333000Z",
      "cloud_cover_scene_percent": 1.146924
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20240811T094151_L2A",
      "date": "2024-08-11T09:48:46.580000Z",
      "cloud_cover_scene_percent": 1.415496
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20250902T093032_L2A",
      "date": "2025-09-02T09:38:45.559000Z",
      "cloud_cover_scene_percent": 0.000215
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20250810T093712_L2A",
      "date": "2025-08-10T09:38:59.683000Z",
      "cloud_cover_scene_percent": 0.000472
    },
    {
      "season": "summer",
      "id": "S2C_T34TCN_20250702T094650_L2A",
      "date": "2025-07-02T09:49:04.247000Z",
      "cloud_cover_scene_percent": 0.074917
    },
    {
      "season": "summer",
      "id": "S2A_T34TCN_20250721T093717_L2A",
      "date": "2025-07-21T09:39:04.938000Z",
      "cloud_cover_scene_percent": 0.321824
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20260907T093434_L2A",
      "date": "2026-09-07T09:38:42.734000Z",
      "cloud_cover_scene_percent": 0.000492
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20260821T094616_L2A",
      "date": "2026-08-21T09:48:38.443000Z",
      "cloud_cover_scene_percent": 0.000773
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20260729T093734_L2A",
      "date": "2026-07-29T09:38:46.135000Z",
      "cloud_cover_scene_percent": 0.00125
    },
    {
      "season": "summer",
      "id": "S2B_T34TCN_20260811T094554_L2A",
      "date": "2026-08-11T09:48:40.823000Z",
      "cloud_cover_scene_percent": 0.873235
    },
    {
      "season": "autumn",
      "id": "S2B_T34TCN_20231003T092728_L2A",
      "date": "2023-10-03T09:38:46.499000Z",
      "cloud_cover_scene_percent": 0.321894
    },
    {
      "season": "autumn",
      "id": "S2B_T34TCN_20231023T093029_L2A",
      "date": "2023-10-23T09:38:46.971000Z",
      "cloud_cover_scene_percent": 10.694741
    },
    {
      "season": "autumn",
      "id": "S2B_T34TCN_20231013T092838_L2A",
      "date": "2023-10-13T09:38:47.779000Z",
      "cloud_cover_scene_percent": 28.846985
    },
    {
      "season": "autumn",
      "id": "S2A_T34TCN_20241022T093339_L2A",
      "date": "2024-10-22T09:38:45.442000Z",
      "cloud_cover_scene_percent": 0.129691
    },
    {
      "season": "autumn",
      "id": "S2A_T34TCN_20241124T094344_L2A",
      "date": "2024-11-24T09:48:41.137000Z",
      "cloud_cover_scene_percent": 5.560542
    },
    {
      "season": "autumn",
      "id": "S2A_T34TCN_20241104T094345_L2A",
      "date": "2024-11-04T09:48:40.072000Z",
      "cloud_cover_scene_percent": 6.361894
    },
    {
      "season": "autumn",
      "id": "S2A_T34TCN_20251101T094718_L2A",
      "date": "2025-11-01T09:48:58.913000Z",
      "cloud_cover_scene_percent": 0.057515
    },
    {
      "season": "autumn",
      "id": "S2C_T34TCN_20251020T094042_L2A",
      "date": "2025-10-20T09:48:54.001000Z",
      "cloud_cover_scene_percent": 4.02995
    },
    {
      "season": "autumn",
      "id": "S2A_T34TCN_20251009T093713_L2A",
      "date": "2025-10-09T09:39:00.790000Z",
      "cloud_cover_scene_percent": 8.373938
    }
  ],
  "score_formula": "0.5*terrain_screening_index + 0.5*moisture_persistence; undefined if observations insufficient",
  "warnings": [
    "Not calibrated or validated with wells",
    "NDMI mainly responds to canopy and exposed surface, not buried groundwater",
    "NDVI is summer median, not a drought anomaly; no drought year was verified",
    "Seasonal NDMI changes can reflect vegetation phenology, shadows and temperature as well as moisture",
    "Optical shadow, vegetation differences, irrigation and karst can mislead",
    "Site-specific normalization makes scores incomparable across independently processed areas"
  ]
}