I use national reports of greenhouse gas emissions and geospatial data to create spatially explicit, bottom-up inventories of methane emissions. We can then compare the spatial pattern of emissions with satellite observations of methane in the atmosphere. The motivation of this work is to take advantage of the vast temporal and spatial coverage of satellite observations to improve our understanding of emissions which are used to develop climate policy.


Global fuel inventory

Global gridded inventory of methane emissions from oil, gas, and coal

Mexico Emissions

Gridded inventory of Mexico's anthropogenic methane emissions

Canada Emissions

Gridded inventory of Canada's anthropogenic methane emissions


Using observations to inform our understanding of emissions [coming soon]

Global fuel inventory

We create a spatial representation of methane emissions so that the resulting spatial pattern can be compared to and informed by the spatial pattern of satellite observed methane concentrations in the atmosphere (see Atmospheric Observations). In this way we use observations of the atmosphere to improve our emissions estimates that are used to develop national and international climate policy.

We create the gridded inventory by allocating each country's reported methane emissions from oil, gas, and coal to source locations including wells, mines, refineries, processing plants, and pipelines.

Mexico emissions

Mexico has made commitments to reduce its methane emissions, especially targeting oil and gas emissions. We create a gridded inventory of Mexico's anthropogenic methane emissions and investigate potential hotspots using the local facility information embedded in the gridded inventory.

In collaboration with the Institute of Ecology and Climate Change (INECC) in Mexico we spatially allocate Mexico's methane emissions to source locations. We use emissions reported in the National Inventory of Greenhouse Gases and Compounds provided by INECC.

Canada emissions

Canada's oil and gas production activities, including oil sands exploitation, produce significant methane emissions. Environment and Climate Change Canada annually reports Canada's anthropogenic methane emissions to the United Nations but oil and gas estimates have significant uncertainty.

We distribute these emissions to a grid using national geospatial datasets incorporating facility reported emissions in Canada's Greenhouse Gas Reporting Program and use the resulting inventory to identifying potential emission hotspots.

Atmospheric observations

We investigate potential methane emission hotspots using satellite observations [more coming soon!]