HESTIA
HESTIA is the physics core inside HeatLens. It simulates how solar radiation, wind, humidity and surface properties combine at any location to produce the thermal environment a person actually experiences.
Scientific detail
HESTIA solves the coupled shortwave–longwave surface energy balance with configurable material albedo and emittance, view-factor MRT, and boundary-layer forcing from ERA5 / local observations. It underpins HeatLens's WBGT/UTCI/MRT fields and provides the environmental boundary conditions consumed by PYROX and JOS-3.
Related terms
HeatLens
MEER's browser-based platform for physiologically informed heat-risk assessment and climate adaptation.
PYROX
MEER's population heat-exposure and risk-attribution suite.
Surface Energy Balance
The bookkeeping of energy flowing into and out of a surface at every moment.
Mean Radiant Temperature
The average temperature of every surface radiating heat toward a person.
Wet Bulb Globe Temperature
A composite heat index widely used to set safe limits for outdoor work, sport and military training.
Universal Thermal Climate Index
A modern, physiology-based heat index that estimates how the human body actually responds to weather.
Where this concept shows up on MEER
Explore in topic hubs
Curated collections of MEER research, projects, publications and stories that feature this term.
Heat Resilience
MEER's work on heat resilience: physiological modeling with JOS-3, WBGT and UTCI measurement, HeatLens risk assessment, and community projects that protect the most exposed populations.
Measurement & Data
MEER's measurement stack: environmental sensors, physiological modeling (JOS-3), HeatLens risk assessment, and the data that grounds every deployment.