ORNL DAAC Data Release - TM5-4DVAR Global Monthly Source-disaggregated Methane Emissions, 1999-2016

[ORNL - blancohl]

ORNL DAAC recently released a new dataset by Basu, S. et al (2025):

TM5-4DVAR Global Monthly Source-disaggregated Methane Emissions, 1999-2016

This dataset holds estimates of methane emissions derived from a dual tracer inversion of atmospheric measurements of CH4 mole fractions and d13CH4 isotopic values. The measurements were assimilated in the TM5 4-Dimensional Variational (TM5-4DVAR) source-sink inversion system to estimate methane emissions from fossil fuel, microbial, and pyrogenic sources.

Citation: Basu, S., Lan, X., Michel, S. E., Dlugokencky, E., & Schwietzke, S. (2025). TM5-4DVAR Global Monthly Source-disaggregated Methane Emissions, 1999-2016. ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/2411