Articles | Volume 16, issue 1
https://doi.org/10.5194/amt-16-89-2023
https://doi.org/10.5194/amt-16-89-2023
Research article
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10 Jan 2023
Research article | Highlight paper |  | 10 Jan 2023

Understanding the potential of Sentinel-2 for monitoring methane point emissions

Javier Gorroño, Daniel J. Varon, Itziar Irakulis-Loitxate, and Luis Guanter

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Latest update: 20 Nov 2024
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Executive editor
Accurate detection and quantification of methane emissions are urgently needed for climate change mitigation. Multiple observations and measurement approaches can contribute to this challenge. This study shows how Sentinel-2 can provide useful coverage and spatial resolution for methane plumes, despite limited spectral sensitivity for methane absorption.
Short summary
We present a methane flux rate retrieval methodology using the Sentinel-2 mission, validating the algorithm for different scenes and plumes. The detection limit is 1000–2000 kg h−1 for homogeneous scenes and temporally invariant surfaces and above 5000 kg h−1 for heterogeneous ones. Dominant quantification errors are wind-related or plume mask-related. For heterogeneous scenes, the surface structure underlying the methane plume can become a dominant source of uncertainty.