Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 18
Articles | Volume 19, issue 18
https://doi.org/10.5194/amt-19-6015-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-6015-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 18
Research article
 | 
23 Sep 2026
Research article |  | 23 Sep 2026

Conditioning-controlled retrieval of broadband land surface temperature and emissivity from paired ground-based longwave irradiance measurements

Collins Mito

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Short summary
Retrieving land surface temperature from thermal radiation is difficult because temperature and emissivity are strongly coupled. We developed a conditioning-controlled method that separates these quantities using paired ground-based longwave measurements. Tests with SURFRAD (Surface Radiation Budget Network) and BSRN (Baseline Surface Radiation Network) observations and known-truth simulations demonstrate stable retrievals and quantify their uncertainty without requiring satellite information.
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