emissivity.org Thermal radiative properties of materials

Data

Open data resources

EKHI — flagship resource →

The field's openly accessible databases of radiative and optical property data, each maintained by an institution on the research map. Counts are exact and dated; every dataset is traceable to its source publication.

EKHI Thermomat / UPV/EHU · Bilbao
Open, publication-centred database of optical and thermal radiative properties of solid materials: curve-level spectral datasets with explicit provenance, machine-readable downloads, and citation tools. Described in Scientific Data (2026). See the latest entries directly in the live database.
1 251 curves · 167 publications
0.05–1000 µm · counts at 2026-01
thermomat.ehu.eus/ekhi →
Berlin Emissivity Database DLR Institute of Planetary Research
Emissivity spectra of planetary-analog materials (minerals, regolith simulants) measured in vacuum, including heated samples for Mercury and Venus surface conditions. Supports the MERTIS instrument on BepiColombo.
planetary analogs · vacuum FTIR
maintainer profile →
ECOSTRESS Spectral Library NASA Jet Propulsion Laboratory
Laboratory reflectance and emissivity spectra of natural and man-made materials (formerly the ASTER Spectral Library), widely used for land-surface temperature and emissivity retrieval.
natural + man-made materials
speclib.jpl.nasa.gov →
USGS Spectral Library U.S. Geological Survey, Spectroscopy Lab
Reference reflectance spectra of minerals, rocks, soils, vegetation, and man-made materials, used across remote sensing and as input for emissivity modelling.
version 7 · open access
maintainer profile →
MEMOIRES ONERA — DOTA
Thermo-optical properties database capitalizing ONERA's measurements of the optical properties of materials, coatings, and paints for infrared signature studies.
coatings · IR signatures
onera.fr/en/dota/memoires →

Maintain a radiative-property data resource that belongs here?

The directory indexes openly accessible, non-commercial databases with traceable provenance. Write to the editorial board to have a resource profiled.