The whole peninsula,
read in real time
Twelve stations, from the DMZ corridor at Gapyeong to the volcanic control point on Jeju, pulled live every few minutes and fused into one honest environmental stress index.
One number, four honest parts
The stress index is not a black box. It is a weighted blend of four measurable components, each on the same zero to one hundred scale, so you can always see which part of the environment is doing the work.
Air
Fine and coarse particulates, nitrogen dioxide, ozone, and sulphur dioxide, each scored on the European air-quality breakpoints and taken at the worst channel.
Thermal load
Apparent temperature against a comfort band near twenty degrees. Both heat and hard cold add stress, with heat weighted faster.
Ultraviolet
The live UV index mapped onto the same zero to one hundred scale, a proxy for radiative load on skin and canopy.
Moisture
Heavy precipitation and saturated air, a gentle contributor that flags runoff and mould conditions rather than acute hazard.
Every reading here is from publicly available data
Air quality and weather stream from Open-Meteo, which redistributes national forecast models and the Copernicus atmosphere service, with no key and no cost. That covers the whole peninsula today.
The corridor spheres on the Dashboard draw on the same public programmes — Copernicus, NASA, NOAA — with every source, fetch time and latency listed on the Methodology page. Nothing on the platform is simulated.