On 1 May 2019, at approximately 14 UTC, PPS will stop production of IMERG V05 in order to setup and install the new IMERG V06 code for production of early and late products. This will require an extended period when no IMERG products will be produced or available for users. We estimate an extended period of IMERG unavailability that may last for 5 hours or more. Upon resumption of IMERG production, V06 will start with data from 1 May 2019 hour 00 UTC. We will reestablish latency of early products to 4 hours, and late products to 14 hours, as soon as possible. We will also start V06 retro-processing of IMERG early and late products back to the beginning of the GPM mission. These will be available on the server as they are produced.

An error has been discovered in processing the initial batches of V06 IMERG Final Run months. A design choice in the code ended up retaining microwave precipitation estimates in the latitude band 60°N-S when there is snow/ice on the surface, rather than masking out the estimates due to low performance in such cases. [Masking for microwave retrievals over surface snow and ice outside that band is correct.] All V06A Monthly and Half-hourly IMERG products are being retracted, as shown in this table (Encompassing all IMERG V06A data that had been reprocessed and archived -to date): ----------+----...

Starting this week (Wednesday March 13, 2019 or soon after) PPS will commence GPM IMERG data reprocessing for IMERG V06. PPS will start reprocessing with the GPM-era data and will make these products available as they are archived. Thereafter, we will reprocess the TRMM-era data. The first available products for the GPM-era will start with June 2014. TRMM-era products will span June 2000 - May 2014. Earlier TRMM-era processing, 1998-01 to 2000-05, will proceed when all required input data have been provided. We have attached the latest IMERG documentation for your convenience. Developers and...

PPS will be doing a full reprocessing of Level 2 - Level 3 PRPS MT1 SAPHIR data as V06A for release starting Wednesday March 06, 2019. In addition to the regular data products there will be a Climatology product as with the current L2-L3 GPROF data products. The following data will be reprocessed as V06A: +-----------------------------------------+-----------------+-------------------+ | DataType |Start of Data | End of Data | +-----------------------------------------+-----------------+-------------------+ | 2APRPSMT1SAPHIR | 2014-02-01 | 2018-12-15 | | 3PRPSMT1SAPHIR | 2014-02-01 | 2018-12...

Starting early the week of March 04, 2019 or shortly after ; PPS will be doing a limited RETRO-processing of Level 1 - Level 3 F16 SSMIS as Version V05B for the period of April 2015 through January 2018. Please see the table below for the specific products and dates affected. If you have previously obtained any of the data listed below, please discard these and replace this data with the retro-processed data as listed. +-------------------------+---------------------+---------------------+----------------+------------+ | DataType | Start of Data | End of Data | ProductVersion | # Granules | +-...