Data News

PPS received replacement GPM Ka/Ku L1B products from JAXA and will reprocess the affected data including Level 2 and 3 data.

If you have already obtained products with orbit# 21324 from our archive or through a standing order, etc., please discard and use the replacement products.

PPS has replaced the following GPM Ka/Ku L1B data:

GPMCOR_KUR_1711290755_0927_021324_1BS_DUB_05A.h5
GPMCOR_KAR_1711290755_0927_021324_1BS_DAB_05A.h5

PPS will reprocess the following L2-3 downstream products:

2AKa 2A.GPM.Ka.V7-20170308.20171129-S075514-E092748.021324.V05A.HDF5
2AKu 2A.GPM.Ku.V7-20170308.20171129-S075514-E092748.021324.V05A.HDF5
2ADPR 2A.GPM.DPR.V7-20170308.20171129-S075514-E092748.021324.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20171129-S075514-E092748.021324.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20171129-S075514-E092748.021324.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20171129-S075514-E092748.021324.V05A.HDF5
3GSLH 3A-ORBIT.GPM.DPR.GPM-SLH.20171129-S075514-E092748.021324.V05A.HDF5
3GCSH
3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20171129-S075514-E092748.021324.V05A.HDF5

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PPS received replacement GPM Ka/Ku L1B products from JAXA and will reprocess the affected data including Level 2 and 3 data.

If you have already obtained products with orbit# 21313 from our archive or through a standing order, etc., please discard and use the replacement products.

PPS has replaced the following GPM Ka/Ku L1B data:

GPMCOR_KUR_1711281456_1629_021313_1BS_DUB_05A.h5
GPMCOR_KAR_1711281456_1629_021313_1BS_DAB_05A.h5

PPS will reprocess the following L2-3 downstream products:

2ADPR 2A.GPM.DPR.V7-20170308.20171128-S145653-E162926.021313.V05A.HDF5
2AKa 2A.GPM.Ka.V7-20170308.20171128-S145653-E162926.021313.V05A.HDF5
2AKu 2A.GPM.Ku.V7-20170308.20171128-S145653-E162926.021313.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20171128-S145653-E162926.021313.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20171128-S145653-E162926.021313.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20171128-S145653-E162926.021313.V05A.HDF5
3GCSH 3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20171128-S145653-E162926.021313.V05A.HDF5
3GSLH 3A-ORBIT.GPM.DPR.GPM-SLH.20171128-S145653-E162926.021313.V05A.HDF5

Please contact us for any questions.

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On 1 December 2017 sometime between 07:00 UTC and 12:00 UTC, PPS will begin installing V05B algorithms for the near realtime (NRT) IMERG dataset. If no problems arise, the installation should take approximately 4 hours. During this period IMERG products will be unavailable.

While this is the first V05 IMERG available from NRT, we are making the data product version V05B so that both the early and the late product will be consistent with the version of the final product which is at V05B.

To avoid unnecessary emails, PPS will not send out an email when the V05 installation is complete.  Users will know installation is complete when they see 1 December 2017 V05B data products available.

When the installation is complete PPS will ensure that all products from 1 December 2017, 00UTC are at V05B.  IMERG products before that date/time will remain at V04A.

The current schedule calls for the retrospective processing of all NRT data, both early and late, to begin in January of 2018.

Please contact us for any questions.

 

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Starting the week of November 20, PPS will generate and release Version 05B of the GPM IMERG Final products.  The Version 05A GPM IMERG Final products with data dates between March and October 2014 products are valid HDF5 science products.  However, these products yield errors when opened with NetCDF4 utilities and library.

To satisfy the requirements of the NetCDF4 users, PPS will release Version 05B GPM IMERG Final products starting next week.  All the contents, data format, data server address and documents are unchanged.  If you are a HDF5 user, you can keep using these Version 05A products or retrieve the new Version 05B IMERG Final products depending on your preference.  If you are a NetCDF4 user, please use this Version 05B GPM IMERG final products, and refer to the data server and documents in the release announcement of the Version 05A GPM IMERG Final products.

Please note that processing begins with the earliest IMERG datasets (beginning with March 2014) and it takes several weeks to fully populate the directories, so users may not see the V05B products immediately.

Please contact us for any questions.

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Starting on Monday November 13, 2017, PPS will generate Version 05 GPM IMERG Final products. The V05 IMERG Final products will be available both in STORM:

https://storm.pps.eosdis.nasa.gov/storm/
and on "arthurhou":
ftp://arthurhou.pps.eosdis.nasa.gov/

NASA requires that science users register at:
https://registration.pps.eosdis.nasa.gov/registration/
to access PPS data services.

PPS will reprocess the V05 IMERG Final products back to data date March 12, 2014.  All users are encouraged to retrieve the V05 IMERG Final products to ensure that they use the most recent products.

The V04 IMERG orders will be processed and distributed through November 12, 2017. With the start of V05 IMERG processing, the V04 IMERG Final products will only be accessible from our arthurhou archives: ftp://arthurhou.pps.eosdis.nasa.gov/gpmallversions/V04/.

The V05 GPM IMERG product release notes and other documentation can be found on the PPS public website at https://pps.gsfc.nasa.gov/GPMprelimdocs.html
Other documentation (IMERG V05 ATBD) can be found at:
https://pps.gsfc.nasa.gov/atbd.html
and
https://pps.gsfc.nasa.gov/ppsdocuments.html
on the PPS public website:
https://pps.gsfc.nasa.gov/

We will include any new information in a future announcement. 

Users should be aware that the PPS Near-realtime (NRT) Early and Late IMERG products will continue at V04 (but using V05 input) until December 2017. When the PPS NRT IMERG switches to V05, a new announcement will be sent out.   

Please contact us if you have any questions.

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25 October 2017  At about 4:57 UTC on 9 October 2017 the NOAA-19 MHS precipitation estimates started displaying artifacts, which was eventually traced to the instrument going into safe mode without shutting down data delivery.  Since this happened over the long Columbus Day weekend, it took until 01:47 UTC on 10 October 2017 to shut down the data stream, so the Early and Late IMERG have these (very obvious) artifacts for almost 24 hours.  No reprocessing is planned.  The sensor resumed operations at 17:31:08 UTC on 16 October 2017, but because the basis for the safe mode was unknown, GPM chose to monitor the data stream at first; GPROF-MHS estimates from NOAA-19 were restarted for the orbit segment beginning 10:32:49 UTC on 25 October 2017.
 

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PPS received replacement GPM Ka L1B (20378) and Ka/Ku L1B (20379) products from JAXA and will reprocess the affected data including Level 2 and 3 data. If you have already obtained products with orbit# 20378-20379 from our archive or through a standing order, etc., please discard and use the replacement products.

PPS has replaced the following GPM Ka/Ku L1B data with empty granules:

GPMCOR_KAR_1709291217_1349_020378_1BS_DAB_05A.h5
GPMCOR_KAR_1709291349_1522_020379_1BS_DAB_05A.h5
GPMCOR_KUR_1709291349_1522_020379_1BS_DUB_05A.h5

PPS has reprocessed the affected L2-3 downstream products.  If you have obtained any of these products from our archive or through a Standing Order, etc., please discard these and use the replacement products when available.

2AKa 2A.GPM.Ka.V7-20170308.20170929-S134938-E152213.020379.V05A.HDF5
2AKa 2A.GPM.Ka.V7-20170308.20170929-S121703-E134937.020378.V05A.HDF5
2AKu 2A.GPM.Ku.V7-20170308.20170929-S134938-E152213.020379.V05A.HDF5
2ADPR 2A.GPM.DPR.V7-20170308.20170929-S134938-E152213.020379.V05A.HDF5
2ADPR 2A.GPM.DPR.V7-20170308.20170929-S121703-E134937.020378.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20170929-S134938-E152213.020379.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20170929-S121703-E134937.020378.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20170929-S134938-E152213.020379.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20170929-S121703-E134937.020378.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20170929-S134938-E152213.020379.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20170929-S121703-E134937.020378.V05A.HDF5
3GCSH 3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20170929-S134938-E152213.020379.V05A.HDF5
3GCSH 3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20170929-S121703-E134937.020378.V05A.HDF5
3GSLH 3A-ORBIT.GPM.DPR.GPM-SLH.20170929-S134938-E152213.020379.V05A.HDF5
3GSLH 3A-ORBIT.GPM.DPR.GPM-SLH.20170929-S121703-E134937.020378.V05A.HDF5

3CMB_DAY 3B-DAY.GPM.DPRGMI.CORRAGD.20170929-S000000-E235959.272.V05A.HDF5
3DPRD 3A-DAY.GPM.DPR.V2-20170410.20170929-S000000-E235959.272.V05A.HDF5
3DPR_ASC 3A-DAY-ASC.GPM.DPR.V2-20170410.20170929-S000000-E235959.272.V05A.HDF5
3DPR_DES 3A-DAY-DES.GPM.DPR.V2-20170410.20170929-S000000-E235959.272.V05A.HDF5
3GQDEGGPM_DAY 3B-DAY.GPM.GMIRADARCMB.GRIDTXT25V2-1.20170929-S000000-E235959.272.V05B.TXT

3DPR 3A-MO.GPM.DPR.V2-20170217.20170901-S000000-E235959.09.V05A.HDF5
3CMB 3B-MO.GPM.DPRGMI.CORRAGM.20170901-S000000-E235959.09.V05A.HDF5
3GQDEGGPM_MONTH 3B-MO.GPM.GMIRADARCMB.GRIDTXT25V2-1.20170901-S000000-E235959.09.V05B.TXT
3GQDEGMSGPM_MONTH 3B-MS-MO.GPM.GMIRADARCMB.GRIDTXT25V2-1.20170901-S000000-E235959.09.V05B.TXT
3HCSH 3B-MO.GPM.DPRGMI.3HCSHv3-1.20170901-S000000-E235959.09.V05A.HDF5
3HSLH 3A-MO.GPM.DPR.GPM-SLH.20170901-S000000-E235959.09.V05A.HDF5
 

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PPS received replacement GPM Ka/Ku L1B products from JAXA and will reprocess the affected data including Level 2 and 3 data. If you have already obtained products with orbit# 20566 from our archive or through a standing order, etc., please discard and use the replacement products.

PPS has replaced the following GPM Ka/Ku L1B data:

GPMCOR_KAR_1710111422_1555_020566_1BS_DAB_05A.h5
GPMCOR_KUR_1710111422_1555_020566_1BS_DUB_05A.h5

PPS will reprocess the affected downstream L2/L3 products shortly.

2AKa 2A.GPM.Ka.V7-20170308.20171011-S142252-E155525.020566.V05A.HDF5
2AKu 2A.GPM.Ku.V7-20170308.20171011-S142252-E155525.020566.V05A.HDF5
2ADPR 2A.GPM.DPR.V7-20170308.20171011-S142252-E155525.020566.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20171011-S142252-E155525.020566.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20171011-S142252-E155525.020566.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20171011-S142252-E155525.020566.V05A.HDF5
3GCSH
3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20171011-S142252-E155525.020566.V05A.HDF5
3GSLH 3A-ORBIT.GPM.DPR.GPM-SLH.20171011-S142252-E155525.020566.V05A.HDF5
 

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With the completion of the TRMM era GPM constellation version 8 level 1 processing, PPS will start to process the TRMM era MHS, SSMIS, AMSR2 and ATMS version 8 level 2 and level 3 GPROF products on Monday October 16, 2017.  Similar to the TRMM version 8 level 1 constellation products, all level 2 and level 3 GPROF products will be produced as GPM version V05, all products are in HDF5 format, all product names will use the GPM file naming convention:
https://pps.gsfc.nasa.gov/Documents/FileNamingConventionForPrecipitationProductsForGPMMission.pdf

and the produced data will appear both in STORM:
 https://storm.pps.eosdis.nasa.gov/storm/
and on "arthurhou":
ftp://arthurhou.pps.eosdis.nasa.gov/
after these are produced.

All users are encouraged to retrieve the improved TRMM version 8 level 2 and level 3 GPROF products to ensure that they use the most recent products. Currently, the only TRMM version 8 level 2 and level 3 GPROF products being reprocessed are listed below with their types, product version, start time and end time:

Data Source                Product Version                           Start of Data                                       End of Data
F16_SSMIS                          V05A                                  2005-11-20 02:35:27                        2014-01-31 23:33:42
F17_SSMIS                          V05A                                  2008-03-19 10:14:53                        2014-01-31 22:50:49
F18_SSMIS                          V05A                                  2010-03-08 00:32:16                        2014-01-31 23:42:12
GCOMW1_AMSR2             V05A                                 2012-07-02 22:31:17                        2014-01-31 23:57:34
METOPA_MHS                    V05C                                 2006-12-04 23:27:59                        2014-01-31 23:23:50
METOPB_MHS                    V05C                                 2013-04-23 21:51:52                        2014-01-31 22:37:52
NOAA18_MHS                    V05C                                 2005-05-25 16:54:59                        2014-01-31 22:43:28
NOAA19_MHS                    V05C                                 2009-02-25 00:52:34                        2014-01-31 22:42:29
NPP_ATMS                           V05C                                2011-12-09 23:39:12                        2014-01-31 23:41:53

PPS will reprocess the entire TRMM era level 2 and level 3 GPROF products.  However, any data dated prior to 2006-01-01 will not be commenced until the snow data from December 1997 to December 2005 are available.  Currently GPROF for TMI, AMSUB, SSMI, AMSRE, and Level 2- Level 3 TRMM PR is under evaluation.  Reprocessing for these will not begin until early 2018.  PPS will inform user community once they are available.

Please note that the above Product Version V05C follows the recent PPS announcement: “Starting with data date October 01, 2017, the Level 2-Level 3 GPROF data for METOPA, METOPB, NOAA18, NOAA19 (MHS) and NPP ATMS partner products will be running new code and produced as product version V05C.”

The other note is that the GANAL ancillary data is not available back through the TRMM era.  So only the GPROF products using the ECMWF ancillary data will be produced.

All processed TRMM era version 8 level 2 and level 3 GPROF products will be held until they have been reviewed and verified by the Science Team.  The processed TRMM era version 8 level 2 and level 3 GPROF products will be released to the public upon their approval.

TRMM version 8 level 2 and level 3 GPROF product release notes and other documentation can be found on the PPS public website at
https://pps.gsfc.nasa.gov/ppsdocuments.html

Other level 2 / level 3 documentation can be found at:
https://pps.gsfc.nasa.gov/atbd.html
and:
https://pps.gsfc.nasa.gov/GPMprelimdocs.html
on the PPS public website:
https://pps.gsfc.nasa.gov/

We will include any new information in a future announcement.  

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Starting with the first orbit of 9 October 2017, the MHS data from NOAA-19 began displaying substantial artifacts.  After the orbit crossing 00 UTC 10 October, the NOAA-19 data have been embargoed from Early and Late IMERG, although it took until 03 UTC for all artifacts to age off the morphing.  At this point, Early and Late IMERG appear nominal, except they lack the sampling that NOAA-19 provides. 

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