GPM

Thanks to the continuing support and work of Dr. Joe Turk of JPL, PPS has an updated version of the Cloudsat TRMM and GPM coincident datasets. These are now available for retrieval from PPS. Documentation for this V05 dataset is available on the PPS website at the following location: https://arthurhou.pps.eosdis.nasa.gov/Documents/CSAT_TRMM_GPM_COIN_ATBD… The dataset was created using the TRMM and GPM V07 products and the current Cloudsat products. The output file format is netcdf4.

Regions of unrealistically high values appeared in the IMERG Early and Late files starting around 00:00 UTC on 17 October 2024. Upon investigation, GPM scientists detected an operational problem on the GPM Core Observatory around 15 October 2024 that caused some corrupted CORRA data to be added to the CORRA-GMI calibration accumulator files for the IMERG Early and Late Runs. These anomalous data affected the calibration when it was next updated (on 17 October 2024). Repaired calibration files were applied at 06:00 UTC on 2 November 2024. The time spans of the unrealistic calibrations in Early

Due to unforeseen issues with the recent GPM near real-time system updates, IMERG V07B Early and Late Run production has been delayed. Currently the PPS plans for IMERG V07B Early and Late Run data to begin production on June 6, 2024. GPM L1 and L2 data has already resumed production, and can be accessed on the the jsimpson and jsimpsonhttps servers.

Recent hardware and operating system changes in the PPS near real-time system have presented challenges that are preventing the production of the new V07B Early and Late Runs at present. One feed for a major input data source is in the process of being enabled, after which the Early and Late should be ready to begin production. The most likely scenario is that this start will happen tomorrow, June 5, at which point the record will be started from June 1.