Access

The IMI v1.1 is freely accessible via the AWS Marketplace.

To get started with the IMI, see our documentation on the IMI readthedocs site.

To view the source code, see our GitHub repository.

For a high-level scientific description, see our IMI research paper.

We encourage new users to email us at integrated-methane-inversion@g.harvard.edu with a description of your project. This helps us to prioritize new features and updates to the IMI.

Description

The Integrated Methane Inversion (IMI) is a user-friendly, cloud-based facility for estimating regional methane emissions by analytical inversion of satellite observations from the TROPOspheric Monitoring Instrument (TROPOMI). It enables researchers and stakeholders to infer methane emissions at 0.25° × 0.3125° (≈ 25 × 25 km2) resolution from TROPOMI satellite data resident on the Amazon Web Services (AWS) cloud, without requiring expert knowledge of inverse methods or cumbersome data download. The IMI uses the GEOS-Chem 3-D chemical transport model as forward model for the inversion.

Heritage

The IMI builds on analytical inversion capabilities developed in the Harvard Atmospheric Chemistry Modeling Group.

Support

For support, please email us at integrated-methane-inversion@g.harvard.edu or submit a Github issue including detailed information about your issue and any relevant output logs.

Citing the IMI

We ask IMI users to cite the IMI 1.0 model description paper in their publications:

Varon, D.J., D.J. Jacob, M. Sulprizio, L.A. Estrada, W.B. Downs, L. Shen, S.E. Hancock, H. Nesser, Z. Qu, E. Penn, Z. Chen, X. Lu, A. Lorente, A. Tewari, and C.A. Randles, Integrated Methane Inversion (IMI 1.0): A user-friendly, cloud-based facility for inferring high-resolution methane emissions from TROPOMI satellite observations, Geosci. Model Dev., https://doi.org/10.5194/gmd-15-5787-2022, 2022.

The IMI is a contribution to the NASA Carbon Monitoring System and is supported in part by the ExxonMobil Research and Engineering Company.