02What does this indicator mean?
Surface temperature describes how warm the ground, roofs or vegetation are. Air temperature describes the surrounding air. Perceived-temperature indicators also account for factors such as humidity, wind and radiation. A heatwave describes sustained unusually hot conditions over time; a single surface map cannot establish one.
03What evidence is available here?
ESA WorldCover classifies the landscape in 2021 at about 10 m. Tree cover and built-up land provide context, but do not describe current street-level shade or temperature.
Check the land-cover classes ↗The heat illustration applies invented weights to land cover and smooths the result. It contains no satellite thermal observations, air-temperature measurements or perceived-temperature calculation.
Open the heat illustration ↗The study window is approximately 10 km across, not an authoritative village boundary. Dates and resolution differ between datasets.
04How can we use it locally?
For community activities
Discuss where people walk, wait, work or gather outdoors. Compare shaded and exposed settings during a site visit, including how their use changes through the day.
For agencies and planners
Use the discussion to select monitoring sites and investigate shade or vegetation opportunities. Account for access, land ownership and maintenance before choosing interventions.
Take these questions to a local discussion
- Which walking routes, waiting areas and gathering places feel most exposed?
- When are these places used, and does usable shade move during the day?
- Has tree cover or development changed since the 2021 source map?
05What should happen next?
06What can’t we conclude?
The overlay cannot identify heatwaves, report a temperature, diagnose health risk or show indoor conditions. Surface heat and perceived heat are not interchangeable. No local ranking of the hottest places has been established.
For current conditions and emergency decisions, use official agency advice. This guide does not replace a local assessment.
References and further reading
These references explain mapping practice. They do not validate our simulated overlays or establish conditions in Kampung Peros.
Dataset provenance and downloads ↗