data/ATTRIBUTIONS.md

# Source Provenance, Citations, and Upstream Terms

Verified against the packaged files and official provider pages on 2026-10-14.
This document is the source registry for `source_assets/`; it is not legal
advice and does not replace upstream terms.

## License boundary

The GeoDisaster Project Contributors apply CC-BY-4.0 only to project-authored
questions, answer schemas, tool chains, documentation, and annotations for
which they hold the rights. That license does **not** relicense imagery,
rasters, labels, OSM extracts, CEMS products, or derivatives of upstream data.
Each upstream source below retains its own terms. Google Earth Engine is an
access/processing platform, not the copyright source; cite the underlying
product, not Earth Engine alone.

Status labels used below:

- **verified**: an official provider page states reuse/redistribution terms.
- **conditional**: reuse is allowed subject to attribution, share-alike,
  non-commercial, or product-specific conditions that the distributor must
  satisfy.

## Family-to-source map

| Packaged family | Direct upstream data | Project-derived/support data |
|---|---|---|
| `deforestation` | Sentinel-2 SR Harmonized; Sentinel-1 GRD; Hansen GFC v1.13 | RGB previews, annual loss masks, and quality reports derived from those products |
| `multi_hazard/wildfire` | MCD64A1.061; VNP14A1.002; NIFC WFIGS incident perimeters; Sentinel-2 SR Harmonized; Landsat 8/9 C2 L2; WorldPop; OSM | dNBR and Landsat dNBR; `nifc_perimeter__event` is the clipped/rasterized authoritative incident geometry |
| `multi_hazard/deforestation` | Hansen GFC v1.13; JRC TMF v1_2023 AnnualChanges; WUR/GFW RADD v1; Sentinel-2 SR Harmonized; WorldPop; OSM | NDVI change; 2022 TMF annual loss; `radd_alerts__event` decodes official `date_conf` alerts inside the declared event window |
| `multi_hazard/urban_expansion` | Dynamic World V1; GHSL P2023A GHS_BUILT_S; ESA WorldCover v100/v200; Sentinel-2 SR Harmonized; WorldPop; OSM | NDBI change and source-native built-gain masks |
| `multi_hazard/drought` | CHIRPS Daily; ERA5-Land Daily Aggregated; MOD13Q1.061; VNP21A1D.002; WorldPop; OSM | SPI/NDVI anomalies and drought masks; VNP21 LST is optional context and two QA-empty AOIs are explicitly omitted |
| `multi_hazard/air_pollution` | Sentinel-5P OFFL L3 NO2/SO2/CO; MCD19A2.061; CAMS NRT total-column NO2; WorldPop; OSM | Train-only S5P quartile footprint and per-source regional-intensity normalization; no WHO or surface-health claim |
| `routing` | Sentinel-2 L2A; CEMS On-Demand Mapping flood products; OpenStreetMap | OSMnx-derived road graphs, candidate routes, scores, selected routes, and rendered overlays |
| `sen1_flood` | Sen1Floods11 packaging of Sentinel-1, Sentinel-2, JRC Global Surface Water, and hand labels | Public previews/packaged overlays; LabelHand-derived hidden reference files excluded from agent inputs; current S1-only Otsu runtime outputs |
| `xbd_damage` | xBD/xView2 imagery and damage labels supplied through the project’s coauthor-managed preparation | Coordinate conversions, grids/quadrants, masks, questions, and deterministic summaries |

## Complete development-snapshot registry

This registry classifies the **10,831 physical files** in the complete internal
development snapshot. That inventory includes files named directly by the
canonical records, files reached through a declared sample-directory handle,
optional context, evaluator-only hidden/reference files, support exports, and
GDAL `.aux.xml` sidecars. The public thin release contains **9,328** source
files. Running the pinned Sen1Floods11 hydrator adds exactly 300 execution files
(100 `S1Hand.tif`, 100 `JRCWaterHand.tif`, and 100 generated
`S1Portable.tif` files), producing a **9,628-file hydrated execution release**.
The remaining internal Sen1Floods11 labels, cached derivatives, and hidden
evaluation products in this table are not public agent inputs.

“Required” and “optional” below refer to unique canonical path declarations;
“support/internal” means a development-snapshot file is not directly named as
an initial path. Directory-resolving worker reads are tracked by the
opened-handle exact-path authorization audit.

| Key | Packaged path family | Physical files | Canonical role | Registered origin |
|---|---|---:|---|---|
| D01 | `deforestation/*/cache/s1_grd/*.tif[.aux.xml]` | 245 | 240 required | Sentinel-1 GRD; entry 1 below. XML files are GDAL metadata sidecars. |
| D02 | `deforestation/*/cache/s2/*.tif[.aux.xml]` | 273 | 267 required | Sentinel-2 L2A; entry 2. |
| D03 | `deforestation/*/visible/s2_rgb/*.png` | 267 | 267 required | Project render derived from D02. |
| D04 | `deforestation/*/masks/*.tif[.aux.xml]` | 147 | 144 required | Hansen GFC `lossyear`, annual-loss, and tree-cover products; entry 5. |
| D05 | `deforestation/*/questions/*.json` | 384 | 384 required | Project-authored questions/schemas; CC-BY-4.0 project layer. |
| D06 | `deforestation/*/quality_report.json` | 48 | support/internal | Project-generated fetch-time reports derived from D01–D04; runtime recomputation is authoritative. |
| MH00 | `multi_hazard/<hazard>/<sample>/` | — | 108 required directory handles | Container path for the registered MH01–MH13 children. |
| MH01 | `multi_hazard/*/*/{aoi,available_handles,metadata}.*` | 324 | 108 required AOIs; remainder support | Project-authored AOI, handle, and acquisition metadata. |
| MH02 | `multi_hazard/*/*/{questions,gt,trajectories}/*.json` | 1,296 | 432 required questions; remainder internal | Project-authored questions, reference answers, and recorded tool trajectories. |
| MH03 | `multi_hazard/*/*/quality_report.json` | 108 | support/internal | Project-generated report derived from the registered rasters. |
| MH04 | `multi_hazard/{drought,air_pollution}/*/baselines/*.csv` | 123 | directory-resolved support | Derived summaries of CHIRPS, ERA5-Land, MOD13Q1, S5P NO2, CAMS AOD, and MODIS MAIAC. |
| MH05 | `multi_hazard/*/*/osm/pois.geojson` | 108 | directory-resolved support | OpenStreetMap extract; entry 21. |
| MH06 | `multi_hazard/*/*/panels/*.png` | 432 | 432 required | Project visualizations derived from the corresponding raster, WorldPop, and OSM inputs. |
| MH07 | `multi_hazard/*/*/tabular/worldpop.{tif,json}` | 216 | 216 required for D | WorldPop 2020 population and provider/source sidecar; entry 20. |
| MH08 | `multi_hazard/wildfire/*/rasters/*` | 339 | 45 required and 120 optional TIFF paths; JSON/XML support | Sentinel-2, Landsat 8/9, MCD64A1, exact VNP14A1 and NIFC WFIGS perimeter products, and derived NBR/dNBR; entries 2, 11–12, 16, and 11a. |
| MH09 | `multi_hazard/deforestation/*/rasters/*` | 368 | 92 required and 92 optional TIFF paths; JSON support | Hansen GFC, JRC TMF, Sentinel-2, exact WUR/GFW RADD, and derived NDVI products; entries 2, 5, 6, and 6a. |
| MH10 | `multi_hazard/urban_expansion/*/rasters/*` | 522 | 261 optional TIFFs; JSON support | Sentinel-2, Dynamic World, GHSL, WorldCover, and derived NDBI/built-gain products; entries 2 and 8–10. |
| MH11 | `multi_hazard/drought/*/rasters/*` | 206 | 84 required and 19 optional TIFF paths; JSON support | CHIRPS, ERA5-Land, MOD13Q1, exact VNP21A1D where QA-valid, and derived drought products; entries 13, 14, 17, and 18. |
| MH12 | `multi_hazard/air_pollution/*/rasters/*` | 280 | 80 required and 60 optional TIFF paths; JSON support | Sentinel-5P, MODIS MAIAC, exact CAMS total-column NO2, and derived benchmark-relative NO2 products; entries 4, 15, and 19. |
| MH13 | `multi_hazard/air_pollution/*/tabular/openaq_*` | 40 | support/internal | OpenAQ empty-query provenance only; entry 23. The CSVs contain headers but no measurements. |
| MH14 | `multi_hazard/air_pollution/{source_normalization.json,*/normalization.json}` | 21 | 20 required; one support copy | Identical project-authored copies of the train-only normalization contract, declared per sample so isolated evaluation has no undeclared global dependency. |
| MH15 | `multi_hazard/drought/*/drought_normalization.json` | 21 | 21 required for B/C/D | Identical project-authored copies of the train-only per-source drought quartile contract; no test sample is used to fit it. |
| R01 | `routing/{train,val,test}.json` | 3 | support exports | Project-authored routing conversations and split records; not upstream data. |
| R02 | `routing/*/copernicus/flood_extent.geojson` | 200 | 200 required | CEMS On-Demand Mapping; entry 22. |
| R03 | `routing/*/input/rgb*` | 401 | 400 required; one XML support | Sentinel-2 L2A imagery, project preview, and GDAL sidecar; entry 2. |
| R04 | `routing/*/input/metadata.json` | 200 | 200 required | Project metadata retaining Sentinel-2 item IDs and CEMS product identifiers. |
| R05 | `routing/*/derived/*` | 600 | 600 required | OSM+CEMS-derived roads, candidates, and route scores; entries 21–22. |
| R06 | `routing/*/ground_truth/selected_routes.json` | 200 | 200 required reference | Project selection from the R05 candidate products. |
| R07 | `routing/*/overlays/routes_overlay.png` | 200 | 200 required | Project render derived from Sentinel-2, OSM, CEMS, and R05. |
| S01 | `sen1_flood/*/{labels/S1Hand.tif[.aux.xml],derived/S1Portable.tif}` | 201 | 100 portable derivatives required; 100 official source TIFFs retained plus one sidecar | Sen1Floods11 Sentinel-1 chip and value-preserving finite-nodata derivative; parent entry 24 and Sentinel entry 1. |
| S02 | `sen1_flood/*/labels/JRCWaterHand.tif[.aux.xml]` | 101 | 100 optional | Sen1Floods11-packaged JRC Global Surface Water context; entries 7 and 24. |
| S03 | `sen1_flood/*/labels/LabelHand.tif[.aux.xml]` | 101 | support/internal, forbidden as answer input | Sen1Floods11 human flood labels; entry 24. |
| S04 | `sen1_flood/*/labels/S1OtsuLabelHand.tif[.aux.xml]` | 101 | support/internal, forbidden as answer input | Cached Sen1Floods11 Otsu derivative of S01; entry 24. |
| S05 | `sen1_flood/*/public/*.png` | 399 | 299 optional; 100 packaged overlays internal | Source-derived S1/S2/JRC previews plus packaged overlays; entries 1, 3, 7, and 24. The current renderer generates separate run artifacts from the current prediction handle. |
| S06 | `sen1_flood/*/hidden/*` | 600 | hidden/internal, forbidden as answer input | Project-generated binary masks, vectors, grids, components, and reports derived from Sen1Floods11 `LabelHand`, not from the current S1-only prediction. |
| X01 | `xbd_damage/*/{pre,post}.png` | 458 | 177 required and 281 optional paths | xBD/xView2 imagery; entry 25. |
| X02 | `xbd_damage/*/post_target.png` | 177 | 177 required; 52 additional optional paths explicitly absent | Mask rendering derived from xBD damage labels; entry 25. |
| X03 | `xbd_damage/*/building_damage_{xy,lnglat}.geojson` | 458 | 229 required and 229 optional | xBD damage polygons and project coordinate conversion; entry 25. |
| X04 | `xbd_damage/*/{grid_4x4,quadrants}.geojson` | 458 | 458 optional | Project-generated geometry derived from X01/X03 extents. |

The reproducible check is `release_tools/audit_c01_source_registry.py`. It is
check-only unless `--output` is supplied. `--mode thin` validates the public
archive before hydration; `--mode hydrated` requires the complete pinned
execution subset. The retained development-snapshot evidence is
`release_tools/evidence/source_asset_registry_development_snapshot.json`; it
reports zero unclassified physical files, zero unclassified referenced paths,
zero missing required paths, zero outside-repository paths, zero
`exists`-flag mismatches, and zero uncited direct raster-sidecar source labels
for the complete 10,831-file internal snapshot.

## Product-by-product registry

### Copernicus satellite products

1. **Sentinel-1 GRD — `COPERNICUS/S1_GRD`.** Used for deforestation SAR
   stacks and as the original SAR source inside
   Sen1Floods11. Packaged patterns include
   `source_assets/deforestation/*/cache/s1_grd/*.tif`,
   and `source_assets/sen1_flood/*/labels/S1Hand.tif`. Product description and
   processing: [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S1_GRD).
   Terms: Copernicus Sentinel Data Terms and Conditions; modified data must
   carry the required Copernicus notice. **Status: conditional.**

2. **Sentinel-2 Level-2A surface reflectance —
   `COPERNICUS/S2_SR_HARMONIZED`.** Used for deforestation optical stacks,
   multi-hazard RGB/NBR/NDVI/NDBI inputs, routing RGB mosaics, and their
   derived indices. Packaged patterns include
   `source_assets/deforestation/*/cache/s2/*.tif`, all
   `source_assets/multi_hazard/*/*/rasters/s2_*`, and
   `source_assets/routing/*/input/rgb*`. Routing metadata records the exact
   mosaic item IDs and acquisition dates per sample. Product description:
   [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_SR_HARMONIZED).
   Terms: Copernicus Sentinel Data Terms and Conditions. **Status:
   conditional.**

3. **Sentinel-2 Level-1C top-of-atmosphere imagery.** Sen1Floods11 documents
   its optional S2 chips as L1C. The packaged pattern is
   `source_assets/sen1_flood/*/public/s2_rgb_optional.png`. L1C reference:
   [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S2_HARMONIZED).
   Terms: Copernicus Sentinel Data Terms and Conditions. **Status:
   conditional.**

4. **Sentinel-5P/TROPOMI OFFL L3 NO2, SO2, and CO —
   `COPERNICUS/S5P/OFFL/L3_NO2`, `COPERNICUS/S5P/OFFL/L3_SO2`, and
   `COPERNICUS/S5P/OFFL/L3_CO`.** Used in
   `source_assets/multi_hazard/air_pollution/*/rasters/s5p_*`. Product pages:
   [NO2](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S5P_OFFL_L3_NO2),
   [SO2](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S5P_OFFL_L3_SO2), and
   [CO](https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S5P_OFFL_L3_CO).
   Terms: Copernicus Sentinel Data Terms and Conditions. **Status:
   conditional.**

### Forest, water, land-cover, and settlement products

5. **Hansen/UMD Global Forest Change v1.13 (2000–2025) —
   `UMD/hansen/global_forest_change_2025_v1_13`.** `treecover2000` and
   `lossyear` supply `source_assets/deforestation/*/masks/*` and the
   multi-hazard Hansen/forest-mask handles. Official product, citation, and
   CC-BY-4.0 terms:
   [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/UMD_hansen_global_forest_change_2025_v1_13),
   including Hansen et al. (2013), DOI
   [10.1126/science.1244693](https://doi.org/10.1126/science.1244693).
   **Status: verified; attribution required.**

6. **JRC Tropical Moist Forest v1_2023 —
   `projects/JRC/TMF/v1_2023/AnnualChanges`.** The December 2021 and December
   2022 annual-state bands are differenced for class 3 (deforestation) to build
   the event-aligned 2022
   `source_assets/multi_hazard/deforestation/*/rasters/tmf_loss__event.*` masks.
   Official access, license, and citation instructions:
   [JRC TMF data access](https://forobs.jrc.ec.europa.eu/TMF/data) and
   [JRC citation guidance](https://forobs.jrc.ec.europa.eu/TMF/resources).
   Required map attribution: “Source: EC JRC”; cite Vancutsem et al. (2021).
   **Status: verified; attribution required.**

6a. **RADD Forest Disturbance Alerts v1 — WUR/GFW.** The official `date_conf`
    tiles supply `radd_alerts__event`; values are decoded into event-window
    low/high-confidence classes plus a separate binary mask. The source contract pins
    the GFW archive version `v20261011`; the Earth Engine source identifier is
    `projects/radar-wur/raddalert/v1`. Product description, method, and
    access: [Wageningen University RADD](https://www.wur.nl/en/research/products-services/radd-forest-disturbance-alert).
    The packaged source contract records CC BY 4.0. **Status: verified;
    attribution required.**

7. **JRC Global Surface Water.** The `occurrence` layer appears in
   `source_assets/sen1_flood/*/labels/JRCWaterHand.tif` as known-water context.
   Official terms and citation:
   [JRC Global Surface Water data access](https://global-surface-water.appspot.com/download),
   including Pekel et al. (2016), DOI
   [10.1038/nature20584](https://doi.org/10.1038/nature20584). Required map
   attribution: “Source: EC JRC/Google.” **Status: verified; attribution
   required.**

8. **Dynamic World V1 — `GOOGLE/DYNAMICWORLD/V1`.** Used by
   `source_assets/multi_hazard/urban_expansion/*/rasters/dynamic_world_built__*`.
   Official product, CC-BY-4.0 terms, required attribution, and paper citation:
   [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/GOOGLE_DYNAMICWORLD_V1),
   Brown et al. (2022), DOI
   [10.1038/s41597-022-01307-4](https://doi.org/10.1038/s41597-022-01307-4).
   **Status: verified; attribution required.**

9. **Global Human Settlement Layer P2023A —
   `JRC/GHSL/P2023A/GHS_BUILT_S`.** Used by
   `source_assets/multi_hazard/urban_expansion/*/rasters/ghsl_built__*` for the
   2020 and 2025 epochs. Official product and reuse terms:
   [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/JRC_GHSL_P2023A_GHS_BUILT_S).
   Reuse is authorized when EC JRC/GHSL is acknowledged. **Status: verified;
   attribution required.**

10. **ESA WorldCover 10 m 2020 v100 and 2021 v200 —
    `ESA/WorldCover/v100` and `ESA/WorldCover/v200`.** Class 50 supplies the
    source-native pre/post masks used to derive `worldcover_built_gain`.
    Official products, CC-BY-4.0 terms, and citation:
    [2020 Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/ESA_WorldCover_v100),
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/ESA_WorldCover_v200),
    Zanaga et al. (2022), DOI
    [10.5281/zenodo.7254221](https://doi.org/10.5281/zenodo.7254221).
    **Status: verified; attribution required.**

### NASA/USGS fire, vegetation, temperature, aerosol, and Landsat products

11. **MODIS MCD64A1.061 burned area — `MODIS/061/MCD64A1`.** Supplies
    `mcd64a1__event`. Official product, unrestricted
    redistribution statement, and DOI:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MCD64A1),
    [10.5067/MODIS/MCD64A1.061](https://doi.org/10.5067/MODIS/MCD64A1.061).
    **Status: verified; cite NASA LP DAAC.**

11a. **NIFC WFIGS Interagency Fire Perimeters.** Supplies
    `nifc_perimeter__event` for the named 2021 Dixie and Bootleg incidents.
    Exact incident features are clipped to each AOI and rasterized; this is not
    an EFFIS product or an MCD64 dilation. The service layer identifier is
    `WFIGS_Interagency_Perimeters/FeatureServer/0`. Authoritative ArcGIS item and its
    no-warranty/appropriate-use notice:
    [WFIGS Interagency Fire Perimeters](https://www.arcgis.com/home/item.html?id=5e72b1699bf74eefb3f3aff6f4ba5511).
    **Status: verified public authoritative item; retain the NIFC disclaimer.**

12. **VIIRS VNP14A1.002 active fire — `NASA/VIIRS/002/VNP14A1`.** Supplies
    `viirs_active_fire__event`. Sidecars record the official 1 km native grid
    separately from the 128x128 nearest-neighbor benchmark export; users must
    not interpret resampling as new native resolution. Official
    product, terms, and DOI:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/NASA_VIIRS_002_VNP14A1),
    [10.5067/VIIRS/VNP14A1.002](https://doi.org/10.5067/VIIRS/VNP14A1.002).
    **Status: verified; citation requested.**

13. **MODIS MOD13Q1.061 vegetation indices — `MODIS/061/MOD13Q1`.** Supplies
    the multi-hazard drought NDVI input/anomaly. Official product and LP DAAC
    terms:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MOD13Q1).
    **Status: verified; cite NASA LP DAAC.**

14. **VIIRS VNP21A1D.002 Day LST and Emissivity Daily 1 km —
    `NASA/VIIRS/002/VNP21A1D`.** Supplies optional `viirs_lst__target` context.
    The builder masks mandatory-QA, data-quality, and cloud bits uniformly and
    uses a 32-day median with nearest-neighbor export. Two AOIs have no
    QA-valid pixel and therefore omit the optional handle rather than using a
    proxy. Official product and terms:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/NASA_VIIRS_002_VNP21A1D).
    **Status: verified; cite NASA LP DAAC.**

15. **MODIS MAIAC MCD19A2.061 AOD —
    `MODIS/061/MCD19A2_GRANULES`.** Supplies `modis_aod__peak`. Official
    product and LP DAAC terms:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/MODIS_061_MCD19A2_GRANULES).
    **Status: verified; cite NASA LP DAAC.**

16. **USGS Landsat 8 and 9 Collection 2 Tier 1 Level 2 —
    `LANDSAT/LC08/C02/T1_L2` and `LANDSAT/LC09/C02/T1_L2`.** Supplies the
    wildfire Landsat NBR and derived dNBR. Official product:
    [Landsat 8 catalog](https://developers.google.com/earth-engine/datasets/catalog/LANDSAT_LC08_C02_T1_L2).
    USGS states there are no use or redistribution restrictions and requests a
    source statement:
    [USGS redistribution FAQ](https://www.usgs.gov/faqs/are-there-any-restrictions-use-or-redistribution-landsat-data).
    **Status: verified; acknowledge USGS.**

### Climate, atmosphere, population, and map data

17. **CHIRPS Daily — `UCSB-CHG/CHIRPS/DAILY`.** Supplies rainfall used to
    compute the same-window SPI/z-score. Official public-domain terms and
    citation:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/UCSB-CHG_CHIRPS_DAILY),
    Funk et al. (2015), DOI
    [10.1038/sdata.2015.66](https://doi.org/10.1038/sdata.2015.66).
    **Status: verified.**

18. **ERA5-Land Daily Aggregated — `ECMWF/ERA5_LAND/DAILY_AGGR`.** Supplies
    layer-1 volumetric soil water for drought cases. Official product and
    required Copernicus acknowledgement:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_AGGR).
    **Status: conditional; attribution required.**

19. **CAMS Global Near-Real-Time — `ECMWF/CAMS/NRT`.** The packaged
    `cams_no2__peak` uses `total_column_nitrogen_dioxide_surface` in kg m-2;
    no AOD substitution or invented conversion is used. Official product and
    Copernicus attribution terms:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/ECMWF_CAMS_NRT).
    **Status: verified; attribution required.**

20. **WorldPop Global Project 100 m population —
    `WorldPop/GP/100m/pop`, 2020 clips.** Supplies
    `source_assets/multi_hazard/*/*/tabular/worldpop.tif`. Official product,
    CC-BY-4.0 terms, and citation:
    [Earth Engine catalog](https://developers.google.com/earth-engine/datasets/catalog/WorldPop_GP_100m_pop).
    **Status: verified; clear WorldPop attribution required.**

21. **OpenStreetMap.** Supplies multi-hazard POIs and routing road/shelter
    data, including `source_assets/multi_hazard/*/*/osm/pois.geojson` and the
    OSM-derived properties in `source_assets/routing/*/derived/*`. Terms and
    required notice:
    [OpenStreetMap copyright and licence](https://www.openstreetmap.org/copyright).
    Use “© OpenStreetMap contributors” and disclose ODbL; assess whether a
    released derived database triggers share-alike obligations. **Status:
    conditional (ODbL 1.0).**

22. **Copernicus Emergency Management Service On-Demand Mapping.** Supplies
    `source_assets/routing/*/copernicus/flood_extent.geojson`. Each routing
    sample records its `activation_code`, `product_type`, `product_id`, and
    `product_key` in `input/metadata.json`. CEMS permits reproduction,
    distribution, public communication, adaptation, and combination subject
    to its terms and citation guidelines:
    [CEMS terms and conditions](https://mapping.emergency.copernicus.eu/terms-and-conditions/).
    **Status: conditional; CEMS source citation required and restricted
    products must be excluded.**

23. **OpenAQ v3.** Construction queried OpenAQ, but all accepted air-pollution
    AOIs contain zero target-window measurements: `openaq_stations.csv` is
    header-only and `openaq_status.json` records
    `completed_no_window_measurements`. OpenAQ contributes provenance of the
    empty query only, not analytical evidence or answer values. Official terms:
    [OpenAQ terms of use](https://docs.openaq.org/about/terms). **Status: no
    measurement payload bundled; do not cite OpenAQ as answer evidence.**

### Parent benchmark datasets

24. **Sen1Floods11 v1.1.** The 100 packaged flood samples retain S1, optional
    S2/JRC views, and hand/cached labels from the structure documented by the
    original project. The required dataset citation is Bonafilia, D., Tellman,
    B., Anderson, T., and Issenberg, E. (2020), “Sen1Floods11: A Georeferenced
    Dataset to Train and Test Deep Learning Flood Algorithms for Sentinel-1,”
    *IEEE/CVF CVPR Workshops*, pp. 210–211. Use the
    [official Cloud to Street GitHub repository and data-access instructions](https://github.com/cloudtostreet/Sen1Floods11)
    together with the
    [official CVPR paper](https://openaccess.thecvf.com/content_CVPRW_2020/html/w11/Bonafilia_Sen1Floods11_A_Georeferenced_Dataset_to_Train_and_Test_Deep_Learning_CVPRW_2020_paper.html).
    The upstream repository provides a public bucket and citation but does not
    declare an explicit dataset `LICENSE` file. The Apache-2.0 license in the
    separate EOEPCA mirror is not treated as authority for Cloud to Street’s
    original data. The public package therefore excludes the Sen1Floods11
    payload and supplies the checksum-pinned upstream hydrator described
    below. Redistributing those files instead requires written permission or
    an authoritative dataset license.

25. **xBD / xView2.** All `source_assets/xbd_damage/*` pre/post images and
    damage polygons originate from xBD. Their intermediate preparation was
    performed within this project by a coauthor and is not an external data
    source, so that internal package is intentionally not cited. Cite Gupta et
    al. (2019), DOI
    [10.48550/arXiv.1911.09296](https://doi.org/10.48550/arXiv.1911.09296), the
    [official xBD dataset page](https://xview2.org/dataset), and the
    [CMU Software Engineering Institute xView2 project](https://www.sei.cmu.edu/projects/xview-2-challenge/).
    CMU/SEI states that xBD is available for public use under a Creative
    Commons license; its official
    [xView2 imagery credit](https://insights.sei.cmu.edu/annual-reviews/2020-year-in-review/wildfire-response-tests-xview2-damage-assessment-prototype/)
    identifies the raw imagery as CC BY-NC 4.0. Preserve attribution and
    non-commercial restrictions for xBD imagery and derivatives, and do not
    represent them as CC-BY-4.0.
    **Status: conditional and documented; no undeclared third-party mirror is
    part of the provenance chain.**

## Sen1Floods11 download and local placement

The development workspace retains its Sen1Floods11 files for the reproducible
2,921-record replay. The public distribution contract is a thin package: it
excludes the packaged `source_assets/sen1_flood/` payload, and users hydrate
the selected inputs directly from the official Cloud to Street bucket.

Official references:

- Repository, citation, and access instructions:
  [cloudtostreet/Sen1Floods11](https://github.com/cloudtostreet/Sen1Floods11)
- Official bucket root: `gs://sen1floods11/v1.1/`
- Upstream S1 folder:
  `gs://sen1floods11/v1.1/data/flood_events/HandLabeled/S1Hand/`
- Upstream JRC folder:
  `gs://sen1floods11/v1.1/data/flood_events/HandLabeled/JRCWaterHand/`

Only 100 selected chips are used. The installer downloads 200 official
GeoTIFFs: one `S1Hand` raster for each chip, plus one `JRCWaterHand` raster for
the D/E known-water comparison tasks. It then generates the 100 portable S1
runtime derivatives. The resulting layout is:

```text
source_assets/sen1_flood/<chip_id>/labels/S1Hand.tif
source_assets/sen1_flood/<chip_id>/labels/JRCWaterHand.tif
source_assets/sen1_flood/<chip_id>/derived/S1Portable.tif
```

The upstream filenames include the chip ID, whereas the benchmark-local names
do not. For example:

```text
gs://sen1floods11/v1.1/data/flood_events/HandLabeled/S1Hand/Bolivia_103757_S1Hand.tif
  -> source_assets/sen1_flood/Bolivia_103757/labels/S1Hand.tif

gs://sen1floods11/v1.1/data/flood_events/HandLabeled/JRCWaterHand/Bolivia_103757_JRCWaterHand.tif
  -> source_assets/sen1_flood/Bolivia_103757/labels/JRCWaterHand.tif
```

From the repository root, the supported installer hydrates exactly the pinned
100-chip subset over the official bucket's public HTTPS endpoint. It downloads
atomically and accepts a file only when both its byte size and SHA-256 match
the pinned manifest:

```bash
# Inspect the plan without writing files.
python3 release_tools/fetch_sen1floods11_subset.py --dry-run

# Download missing files, retaining already verified files.
python3 release_tools/fetch_sen1floods11_subset.py

# Verify an existing installation without network access.
python3 release_tools/fetch_sen1floods11_subset.py --verify-only
```

The installer is `release_tools/fetch_sen1floods11_subset.py`; its immutable
selection, official source URLs, local destinations, sizes, and checksums are
in `release_tools/manifests/sen1floods11_required_100.json`. It refuses to
overwrite a mismatched existing file unless the user explicitly supplies
`--replace-mismatched`. After verifying an official S1 file, it creates or
validates `S1Portable.tif` by replacing only non-finite/declared-nodata pixels
with `-9999.0`; valid values and georeferencing are unchanged. The manifest is
bound to canonical dataset SHA-256
`03988b960e6b09ae01fb622fe45b35d763eb705485cddc3cea68bcac7ae63fe1`, so a
changed canonical file requires an explicit manifest update rather than silently changing the
download selection.

For transparency, this is the equivalent unpinned `gsutil` procedure. The
manifest-backed installer above is preferred because this loop does not check
integrity:

```bash
for chip_id in $(python3 -c 'import json; print(" ".join(sorted({r["sample_id"] for r in map(json.loads, open("data/core/geodisaster_2921_source_with_splits.jsonl")) if r["id"].startswith("sen1_flood/")})))'); do
  mkdir -p "source_assets/sen1_flood/${chip_id}/labels"
  gsutil cp \
    "gs://sen1floods11/v1.1/data/flood_events/HandLabeled/S1Hand/${chip_id}_S1Hand.tif" \
    "source_assets/sen1_flood/${chip_id}/labels/S1Hand.tif"
  gsutil cp \
    "gs://sen1floods11/v1.1/data/flood_events/HandLabeled/JRCWaterHand/${chip_id}_JRCWaterHand.tif" \
    "source_assets/sen1_flood/${chip_id}/labels/JRCWaterHand.tif"
done
```

The current benchmark does **not** require users to download `LabelHand`,
`S1OtsuLabelHand`, hidden reference products, prepared overlays, or Sentinel-2
chips. `LabelHand`, cached Otsu labels, and `hidden/*` are forbidden answer
inputs. Cached Otsu files are explicitly excluded by
`release_tools/manifests/c10_excluded_legacy_rasters.json`. Public S1/JRC
previews may be generated locally but are not analytical inputs. The official
selected S1+JRC download is approximately 157 MiB; generated portable S1 files
add approximately 145 MiB locally.

The public-release builder enforces this contract:

1. All 1,503 development files below `source_assets/sen1_flood/` are excluded
   from the published archive; the complete development snapshot is preserved.
2. The installer and pinned 100-chip checksum manifest are bound to the
   canonical dataset SHA-256.
3. `JRCWaterHand` is a required declared input for D/E; A/B/C do not receive
   that handle.
4. Optional previews not regenerated by the installer are not required agent
   inputs.
5. A hydrated release must pass the source-registry/path audit and complete
   500-question Sen1 replay before upload.

## Project-derived and software-only items

- Raster indices, threshold masks, panels, grids, polygons, route scores,
  reports, and overlays are transformations or combinations of the applicable
  inputs above. Their provenance is inherited; project authorship does not
  erase upstream conditions.
- The source contracts use `nifc_perimeter__event`, `radd_alerts__event`,
  `viirs_lst__target`, `cams_no2__peak`, and `viirs_active_fire__event`
  sidecars identify the exact products, bands, physical units, native
  resolutions, transformations, and checksums. Air-pollution classes are
  benchmark-relative column/intensity states, not WHO or health categories.
- OSMnx is software used to create routing products, not a data source. Cite
  Boeing (2025), DOI [10.1111/gean.70009](https://doi.org/10.1111/gean.70009);
  OSMnx itself is MIT licensed. See the
  [official documentation](https://osmnx.readthedocs.io/en/stable/).
- Google Earth Engine is the processing/access platform for many cached
  products. Its use does not replace any product-specific citation or terms.
- The project-authored JSONL records, questions, schemas, and chains may be
  CC-BY-4.0, but a mixed-source archive containing `source_assets/` must use a
  mixed/custom license declaration and ship this registry.

## Release licensing requirements

xBD provenance is attributed to the original xBD/xView2 sources, while the
coauthor-managed preparation is treated as an internal project transformation.
The public package uses the Sen1Floods11 thin-release procedure above unless
an explicit redistribution license is obtained. Every release must also
retain the required upstream notices and apply the ODbL requirements to any
released routing or POI databases.