Data & licences
Where every number comes from.
| Source | Use | Licence |
|---|---|---|
| National Weather Service API (api.weather.gov) | Hourly WBGT, temperature, humidity, heat index, wind, HeatRisk | U.S. Government work, public domain. Not endorsed by NWS/NOAA. |
| U.S. Census Bureau Geocoder | Address matching | Public domain. Not endorsed by the Census Bureau. |
| Photon (komoot) / OpenStreetMap | Address suggestions and fallback | © OpenStreetMap contributors, ODbL 1.0 (openstreetmap.org/copyright) |
| NIOSH Criteria 2016-106 | REL/RAL equations, hydration guidance | U.S. Government publication. Not endorsed by NIOSH/CDC. |
| ISO 7243 metabolic rate classes | Workload watts | Cited values |
| Australian Bureau of Meteorology simplified WBGT | Estimate where NWS has no WBGT | Published formula |