SPARC Reanalysis Intercomparison Project

Recent S-RIP News

Release of stratosphere-focused chemical reanalysis M2-SCREAM

25 July 2022 | The M2-SCREAM (Modern-Era Retrospective analysis for Research and Applications - 2 (MERRA-2) Stratospheric Composition Reanalysis of Aura Microwave Limb Sounder) has been developed at NASA’s Global Modeling and Assimilation Office in collaboration with the Microwave Limb Sounder (MLS) team. The M2-SCREAM data are available to the public through the Goddard Earth Sciences Data and Information Services Center (GES DISC) and can be accessed here. More detailed information on M2-SCREAM can be found here.

Reanalysis session at the AGU Fall Meeting 2022

25 July 2022 | Please consider to submit an abstract to A081 - Progress in Reanalysis: Development, Evaluation, and Application. Abstract deadline is 3 August. This year, AGU "will be held in Chicago and online everywhere 12 - 16 December 2022." - see the details at

Updated version of "ERA5 back extension (*1959* -1978)" now available

17 June 2022 | Updated version of "ERA5 back extension (*1959* -1978)" becomes available. (A further extension from 1940 to 1958 is currently in production.) For the details, see this webpage. For data access, see this webpage.

New S-RIP dataset "RID"

14 June 2022 | Patrick Martineau has prepared a new reanalysis intercomparison dataset (RID) for S-RIP Phase 2. This is an extended version of the dynamical part of Martineau et al. (2018). See more information in this document.
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