This FAQ document provides information specifically aimed at the Integrated Multi-satellitE Retrievals for GPM (IMERG) Version 07 for applications users. As of August 2024, both Initial Processing (IP) and retrospective processing (RP) for the IMERG Early, Late and Final products have been completed for Version 07. IMERG V07 involves a wide range of changes to all aspects of the product, many of which are implemented in response to feedback on V06, which was the first time the IMERG record spanned the TRMM and GPM eras. IMERG V07 was reprocessed for the entire TRMM / GPM record and thus supersedes all prior IMERG versions, as well as superseding the prior TRMM-based TMPA products (3B42RT, 3B42, 3B43).

We encourage users to review the IMERG V07 Release Notes and the technical documentation at https://gpm.nasa.gov/resources/documents/imerg-v07-release-notes and https://gpm.nasa.gov/resources/documents/imerg-v07-technical-documentat…. The Release Notes summarizes key changes in the IMERG V07 algorithm, together with important information about its use, while the Technical Documentation is a detailed log of all information and news relating to IMERG, including decisions made in previous versions.