=== selected scenes ===
 year       date  cloud_pct  nodata_pct baseline  offset_applied
 2019 2019-08-14       0.02         0.0    05.00            True
 2020 2020-09-02       0.01         0.0    05.00            True
 2021 2021-09-07       0.04         0.0    05.00            True
 2022 2022-09-07       1.01         0.0    04.00            True
 2023 2023-09-07       0.01         0.0    05.09            True
 2024 2024-07-03       0.04         0.0    05.10            True
 2025 2025-09-16       0.03         0.0    05.11            True

=== example item ===
S2B_11SQA_20190814_1_L2A
assets: aot, blue, coastal, granule_metadata, green, nir, nir08, nir09, red, rededge1, rededge2, rededge3, scl, swir16, swir22, thumbnail, tileinfo_metadata, visual, wvp
green raster:bands: [{'nodata': 0, 'data_type': 'uint16', 'bits_per_sample': 15, 'spatial_resolution': 10, 'scale': 0.0001, 'offset': -0.1}]
earthsearch:boa_offset_applied: True
latest green raster:bands: [{'nodata': 0, 'data_type': 'uint16', 'spatial_resolution': 10, 'scale': 0.0001, 'offset': -0.1}]
processed 2019-08-14: NDWI water = 325.7 km², MNDWI water = 324.1 km²
processed 2020-09-02: NDWI water = 326.7 km², MNDWI water = 323.5 km²
processed 2021-09-07: NDWI water = 299.8 km², MNDWI water = 286.5 km²
processed 2022-09-07: NDWI water = 270.1 km², MNDWI water = 267.1 km²
processed 2023-09-07: NDWI water = 295.2 km², MNDWI water = 289.3 km²
processed 2024-07-03: NDWI water = 290.8 km², MNDWI water = 288.9 km²
processed 2025-09-16: NDWI water = 286.1 km², MNDWI water = 281.0 km²

=== water area by year ===
 year       date  ndwi_km2  water_km2  scl_water_km2  cloud_masked_km2  valid_pct
 2019 2019-08-14     325.7      324.1          379.2               1.7      100.0
 2020 2020-09-02     326.7      323.5          369.4               2.2      100.0
 2021 2021-09-07     299.8      286.5          361.1               2.9       99.9
 2022 2022-09-07     270.1      267.1          349.1               4.1       99.9
 2023 2023-09-07     295.2      289.3          368.0               1.5      100.0
 2024 2024-07-03     290.8      288.9          365.3               2.0      100.0
 2025 2025-09-16     286.1      281.0          357.7               1.0      100.0

=== change ===
water in 2019 but not 2022: 57.6 km²
water in 2022 but not 2019: 0.7 km²
change 2019 -> 2025: -43.1 km²