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

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/2411
Version1
Projects
Published2025-04-15
Usage9 downloads
Download Data82.9 MBUser Guide

Description

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. These estimates include monthly means of methane emissions from each source and all three sources combined at 1-degree longitude x 1-degree latitude spatial resolution globally and monthly totals across all global grid cells from each source and all three sources combined from 1999 to 2016. The data are provided in netCDF version 4 format.

Science Keywords

  • ATMOSPHERE
  • ATMOSPHERIC CHEMISTRY
  • CARBON AND HYDROCARBON COMPOUNDS
  • METHANE
  • HUMAN DIMENSIONS
  • ECONOMIC RESOURCES
  • ENERGY PRODUCTION/USE
  • METHANE PRODUCTION/USE

Data Use and Citation

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DOI citation formatter
Basu, S., X. Lan, S.E. Michel, E. Dlugokencky, and S. Schwietzke. 2025. TM5-4DVAR Global Monthly Source-disaggregated Methane Emissions, 1999-2016. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2411

This dataset is openly shared, without restriction, in accordance with the NASA Earthdata Data Use Guidance.

Data Files

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Companion Files

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Dataset has 1 companion files.

  • CH4_Modeled_EmissionSources.pdf