Building thermal performance

Building thermal performance uses thermal infrared observations to screen district-scale thermal anomalies and heat loss, and it is not a substitute for close-range building envelope inspection.^[1][2]

The primary EO modality is thermal infrared land-surface temperature and emissivity retrieval, with useful measurements requiring night or winter acquisition, atmospheric correction, and building-level contextual data.^[1][3]

Thermal infrared imagery supports city and district screening, while reliable individual-building retrofit diagnosis remains limited by spatial resolution and contextual controls.^[1]

Land-surface temperature and emissivity retrieval provides the direct EO observable for building heat-loss and urban thermal screening, but coarse satellite pixels can mix roofs, streets, vegetation, and facades.^[1][3]

Thermal-anomaly detection can flag localized outliers for inspection, and multisensor spatiotemporal fusion can combine thermal observations with building footprints, weather, and land-cover context for retrofit targeting.^[1][3]