Upcoming IMERG version update to V04A

The algorithm for the Integrated Multi-satellitE Retrievals for GPM (IMERG) Early and Late Runs has now been upgraded to Version 04.  The transition to V04 is planned to happen on Monday, March 13 by 15 UTC at PPS and the new data should start flowing down to the GES DISC as well. 

Access and data fields continue to be the same as for Version 03, except the version number is 04A. Initially, the data records begin on 5 February 2017 for the Late Run, and about 5 hours before the time when PPS begins processing after the switchover for the Early Run.

Version 04 supersedes all prior IMERG versions, and users are urged to shift to the new datasets as soon as practical.

The TIFF/TFW version of IMERG and all its accumulations will also be transitioned to use the V04 IMERG product.

Release notes and other documentation for IMERG V04  will be available on the NRT ftp site in the directory: ftp://jsimpson.pps.eosdis.nasa.gov/NRTPUB/documentation

Please contact us for any questions regarding this transition.