Methodology · Thermal IR

Land-surface temperature - emissivity retrieval

Retrieves surface temperature and spectral emissivity from TIR radiance measurements; good for urban heat islands, drought stress monitoring, and surface energy balance studies.

How it works

Separates emissivity from temperature using split-window or temperature-emissivity separation algorithms. Requires accurate atmospheric correction. [Wikipedia: Land surface temperature](https://en.wikipedia.org/wiki/Land_surface_temperature)

Topics this serves

Existing implementations

No implementations recorded yet.

Related methodologies

Thermal anomaly detection

Identifies localised high-temperature events against background radiance; good for active fire detection, gas flare monitoring, and volcanic hotspot mapping.

Sources

[wikipedia]Wikipedia: Land surface temperaturecommunityaccessed 2026-05-22

Methodology

Edited from public sources. Last reviewed date pending by SpectraWorks editorial. See the data dictionary for field definitions.

Cite or share

https://eo-atlas.org/topics/methodologies/lst-emissivity-retrieval

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