=== versions === python 3.12.0 | pystac-client 0.9.0 | planetary-computer 1.0.0 | rasterio 1.5.2 | numpy 2.5.4 | pandas 3.0.6 === STAC search === grid: 526 x 398 pixels of 20 m (10.5 x 8.0 km), EPSG:32630 11 scenes of tile 30UWE with < 50% cloud, June to August 2018 2018-06-24 Sentinel-2B scene cloud 10.5% baseline 02.12 sun zenith 31.4 2018-06-26 Sentinel-2A scene cloud 6.7% baseline 02.12 sun zenith 32.0 2018-06-29 Sentinel-2A scene cloud 0.3% baseline 02.12 sun zenith 31.6 2018-07-04 Sentinel-2B scene cloud 3.0% baseline 02.12 sun zenith 32.0 2018-07-14 Sentinel-2B scene cloud 11.0% baseline 02.12 sun zenith 33.3 === cloud and water masking === pre SCL: vegetation 92.5%, not vegetated 5.2%, water 1.2%, cloud/shadow/cirrus 0.1% post SCL: vegetation 77.6%, not vegetated 16.5%, water 1.2%, cloud/shadow/cirrus 0.5% pixels clear on both dates: 203,975 of 209,348 (97.4%) === NBR and dNBR === median NBR: pre-fire 0.414, post-fire 0.364 dNBR 0.5th-99.5th percentile: -0.139 to 0.996 unburned reference ring: 1,025 ha, median dNBR -0.002 -> subtracted as the offset === burn severity area (USGS classes) === class dNBR range whole AOI (ha) inside perimeter (ha) % of burn Enhanced regrowth, high < -0.251 4.7 0.0 NaN Enhanced regrowth, low -0.251 to -0.101 91.8 0.0 NaN Unburned -0.101 to 0.099 5929.9 10.1 NaN Low severity 0.099 to 0.269 989.2 93.8 8.8 Moderate-low severity 0.269 to 0.439 237.9 111.5 10.4 Moderate-high severity 0.439 to 0.659 386.1 343.2 32.1 High severity >= 0.659 519.5 519.1 48.6 burn perimeter: 1,078 ha (10.8 km2); moderate-low or worse: 974 ha whole AOI at low severity or worse: 2,116 ha without the offset, 2,133 ha with it perimeter polygon: 1,078 ha, 28.9 km of edge === RdNBR === pre-fire NBR inside the perimeter: median 0.288, 5th-95th pct 0.001 to 0.550 inside perimeter: median dNBR 0.647, median RdNBR 1.340 lowest quarter of pre-fire NBR: median dNBR 0.510, RdNBR 1.609 highest quarter of pre-fire NBR: median dNBR 0.796, RdNBR 1.133 hectares inside the perimeter by four-class scheme: unchanged RdNBR 3 ha | dNBR 11 ha low RdNBR 61 ha | dNBR 94 ha moderate RdNBR 67 ha | dNBR 456 ha high RdNBR 947 ha | dNBR 518 ha === fire progression === date clear_in_perimeter_% burnt_ha 2018-06-26 93.5 27 2018-06-29 100.0 913 2018-07-04 100.0 956 2018-07-14 100.0 974 === recovery time series === 238 May-September scenes 2017-2025, 61 with >= 80% clear burn and control pixels scenes nbr_burn nbr_ctrl gap period pre-fire 8 0.202 0.341 0.133 2018 9 -0.273 0.402 0.666 2019 5 0.176 0.487 0.293 2020 7 0.183 0.385 0.187 2021 5 0.308 0.416 0.113 2022 5 0.422 0.507 0.074 2023 8 0.373 0.478 0.104 2024 5 0.475 0.524 0.050 2025 9 0.315 0.477 0.152 pre-fire gap 0.133; first post-fire summer at or below it: 2021 === outputs === 01-true-false-colour.png 1768 KB 02-nbr-dnbr.png 1406 KB 03-severity-map.png 440 KB 04-fire-progression.png 464 KB 05-rdnbr-comparison.png 399 KB 06-recovery-timeseries.png 80 KB burn_perimeter_2018.gpkg 112 KB dnbr_2018.tif 734 KB recovery_nbr.csv 6 KB severity_area_ha.csv 0 KB severity_classes_2018.tif 24 KB