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. 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.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated May 18, 2026, 21:23 (UTC)
Created April 21, 2025, 05:54 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 3ad9d5d2-bc88-49fd-8a02-b9a9a1ec02af
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2411
license https://www.usa.gov/government-works
modified 2026-05-14T22:12:41Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 543b00d9acddc0da97bafe83dce8504a960d54c05ef4a7a23859ad7fb831025f
source_schema_version 1.1
spatial [[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":90.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-90.0}],"CARTESIAN"]
temporal 1999-01-01/2016-12-31
theme {"Earth Science"}