The IMI v1.0 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.
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.
The IMI builds on analytical inversion capabilities developed in the Harvard Atmospheric Chemistry Modeling Group.
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.