Integrated Methane Inversion (IMI)

Important

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The Integrated Methane Inversion (IMI) workflow is a cloud-computing tool for quantifying methane emissions by inversion of satellite observations from the TROPOspheric Monitoring Instrument (TROPOMI). It uses GEOS-Chem as forward model for the inversion and infers methane emissions at 25 × 25 km² resolution.

This site provides instructions for using the IMI, including launching an AWS compute instance, configuring and running an inversion, and analyzing the results with a ready-made jupyter notebook.

Some instructions are specific to the Amazon Web Services (AWS) cloud, but the IMI can also be run on a local compute cluster either manually building the environment or using a docker container.

Getting Started

• Quick start guide
• IMI configuration file
• IMI preview
• Tips for minimizing AWS costs

Advanced Features

• Running the IMI with tmux
• The IMI Kalman Filter mode
• Setting up Jupyter on EC2
• Creating a custom state vector file
• Using the IMI Clustering Options
• Modifying prior emission estimates
• Using custom regions with the IMI
• Constructing an inversion ensemble
• Running the IMI on a local cluster
• Using the IMI Docker container

Other

• Common IMI configurations
• IMI directory contents
• AMI specifications

Help & Reference

• Known bugs
• Support
• Contributing
• Editing this User Guide
• Terminology (TODO: edit this page)