Data News

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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With the completion of the TRMM version 8 level 1 processing, PPS will start to process the TRMM era GPM constellation level 1 data on Friday October 6, 2017.  Similar to the TRMM version 8 level 1 product, all level 1 constellation products will be produced as GPM version V05, all products are in HDF5 format, all product names will use the GPM naming convention 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/

PPS will reprocess the entire TRMM era constellation data.  All users are encouraged to retrieve the improved TRMM version 8 level 1 constellation products to ensure that they are using the latest algorithms. The TRMM version 8 level 1 constellation product types, start time and end time are listed below:

Data Type                                            Start of Data                                                       End of Data
BASEAQUAAMSRE                            2002-06-01 15:48:29                                        2011-10-04 07:44:29
BASEF11SSMI                                    1997-11-30 23:36:30                                        2000-05-16 16:57:56
BASEF13SSMI                                    1997-11-30 22:29:40                                        2009-11-20 01:08:59
BASEF14SSMI                                    1997-11-30 22:03:14                                        2008-08-24 00:48:17
BASEF15SSMI                                    2000-02-23 09:49:02                                        2006-08-14 01:23:04
BASEF16SSMIS                                  2005-11-20 02:35:27                                        2014-01-31 23:33:42
BASEF17SSMIS                                  2008-03-19 10:14:53                                        2014-01-31 22:50:49
BASEF18SSMIS                                  2010-03-08 00:32:16                                        2014-01-31 23:42:12
BASEGCOMW1AMSR2                     2012-07-02 22:31:17                                        2014-01-31 23:57:34
BASEMETOPAMHS                           2006-12-04 23:27:59                                        2014-01-31 23:23:50
BASEMETOPBMHS                           2013-04-23 21:51:52                                        2014-01-31 22:37:52
BASEMT1SAPHIR                              2011-10-13 04:12:29                                        2014-01-31 22:45:57
BASENOAA15AMSUB                      2000-01-01 01:16:38                                        2010-09-15 02:12:20
BASENOAA16AMSUB                      2000-10-04 12:12:03                                        2010-05-01 02:31:07
BASENOAA17AMSUB                      2002-06-28 19:13:47                                        2009-12-18 01:33:07
BASENOAA18MHS                           2005-05-25 16:54:59                                        2014-01-31 22:43:28
BASENOAA19MHS                           2009-02-25 00:52:34                                        2014-01-31 22:42:29
BASENPPATMS                                 2011-12-09 23:39:12                                        2014-01-31 23:41:53
1CAQUAAMSRE                               2002-06-01 15:48:29                                        2011-10-04 07:44:29
1CF11SSMI                                      1997-11-30 23:36:30                                        2000-05-16 16:57:56
1CF13SSMI                                      1997-11-30 22:29:40                                        2009-11-20 01:08:59
1CF14SSMI                                      1997-11-30 22:03:14                                        2008-08-24 00:48:17
1CF15SSMI                                      2000-02-23 09:49:02                                        2006-08-14 01:23:04
1CF16SSMIS                                    2005-11-20 02:35:27                                        2014-01-31 23:33:42
1CF17SSMIS                                    2008-03-19 10:14:53                                        2014-01-31 22:50:49
1CF18SSMIS                                    2010-03-08 00:32:16                                        2014-01-31 23:42:12
1CGCOMW1AMSR2                       2012-07-02 22:31:17                                        2014-01-31 23:57:34
1CMETOPAMHS                              2006-12-04 23:27:59                                        2014-01-31 23:23:50
1CMETOPBMHS                              2013-04-23 21:51:52                                        2014-01-31 22:37:52
1CMT1SAPHIR                                 2011-10-13 04:12:29                                        2014-01-31 22:45:57
1CNOAA15AMSUB                         2000-01-01 01:16:38                                        2010-09-15 02:12:20
1CNOAA16AMSUB                         2000-10-04 12:12:03                                        2010-05-01 02:31:07
1CNOAA17AMSUB                         2002-06-28 19:13:47                                        2009-12-18 01:33:07
1CNOAA18MHS                              2005-05-25 16:54:59                                        2014-01-31 22:43:28
1CNOAA19MHS                              2009-02-25 00:52:34                                        2014-01-31 22:42:29
1CNPPATMS                                    2011-12-09 23:39:12                                        2014-01-31 23:41:53

All TRMM version 8 level 1 constellation data products will be held until they have been reviewed and verified by the Science Team.  TRMM version 8 level 1 constellation products will be released to the public upon their approval.
The processing of TRMM version 8 level 2, level 3 products will be commenced at a later date. 

TRMM version 8 level 1 constellation product release notes and other documentation can be found on the PPS public website at:
https://pps.gsfc.nasa.gov/ppsdocuments.html

Other level 1 / level 1C 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.

Please contact us for any questions.

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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.  These code changes are relatively minor and primarily affect the outer edges of the swath. 

Processing of the V05C data will start tomorrow on Wednesday October 04, 2017.

Notable changes include :
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The V05C GPROF of the Cross-track sensors allows for more usable pixels on the outside of the MHS and ATMS scans as compared to the previous version.
For MHS pixels 1 - 5, and 86 - 90 are set to missing. For ATMS pixels 1-9 and 86 – 96 are set to missing.

The previous version set these Pixels to quality Flag =3, but upon further examination, the rainrates of the outside pixel positions should NEVER be used, so these pixels are set to missing in V05C.
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As this Level 2 - Level 3 GPROF data becomes available these will appear both in STORM:
https://storm.pps.eosdis.nasa.gov/
and on arthurhou:
ftp://arthurhou.pps.eosdis.nasa.gov/

Additionally, since we are going to start TRMM era MHS and NPP processing shortly, we will be reprocessing the entire Level 2-Level 3 MHS and NPP dataset as V05C.  
Related Documentation can be found at:
https://pps.gsfc.nasa.gov/Documents/ATBD_GPM_October1_2017.pdf
https://pps.gsfc.nasa.gov/GPMprelimdocs.html
https://pps.gsfc.nasa.gov/atbd.html
https://pps.gsfc.nasa.gov/ppsdocuments.html

on the PPS Public website:
https://pps.gsfc.nasa.gov/

Please contact us for any questions.

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PPS received new GPM Ka L1B products (2017-09-29) for orbit 20378 from JAXA and reprocessed the affected data.

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. The following files and corresponding browse products will be replaced

2AKa 2A.GPM.Ka.V7-20170308.20170929-S121703-E134937.020378.V05A.HDF5
2ADPR 2A.GPM.DPR.V7-20170308.20170929-S121703-E134937.020378.V05A.HDF5
2BCMB 2B.GPM.DPRGMI.CORRA2016.20170929-S121703-E134937.020378.V05A.HDF5
2HCSH 2B.GPM.DPRGMI.2HCSHv3-1.20170929-S121703-E134937.020378.V05A.HDF5
2HSLH 2A.GPM.DPR.GPM-SLH.20170929-S121703-E134937.020378.V05A.HDF5

3GCSH
3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20170929-S121703-E134937.020378.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

3CMB 3B-MO.GPM.DPRGMI.CORRAGM.20170901-S000000-E235959.09.V05A.HDF5
3DPR 3A-MO.GPM.DPR.V2-20170217.20170901-S000000-E235959.09.V05A.HDF5
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 is releasing version 3.80.29 build of the PPS TKIO toolkit for GPM Version 5 products and TRMM Version 8 data products 

This can be found at: ftp://gpmweb2.pps.eosdis.nasa.gov/pub/PPStoolkit/GPM/tkio-3.80.29/

The direct link to the tar file can be accessed here: ftp://gpmweb2.pps.eosdis.nasa.gov/pub/PPStoolkit/GPM/tkio-3.80.29/tkio-3.80.29.tar.gz

The most recent changes are in metadata:

3GSLHT cu3cw
3HSLHT cu3cw

Other changes are noted in the release notes documents in the FTP directory.

Please contact us for any questions.

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PPS will start the TRMM version 8 level 1 processing on Monday October 2, 2017.  All products will be produced as GPM version V05.  All the TRMM products are in HDF5 format with internal compression (same as the current GPM products), and will be produced using the PPS Toolkit (TKIO) version 3.80.29.

The TRMM product names will be changing using the GPM naming conventions. The GPM naming convention document can be found at:  https://pps.gsfc.nasa.gov/Documents/FileNamingConventionForPrecipitationProductsForGPMMission.pdf.  TRMM version 8 level 1 products have new identifiers, 1ATMI, 1BTMI, 1AVIRS, 1BVIRS, 1BPR and 1CTRMMTMI. There are no version 8 products identified by 1A01, 1A11, 1B01, 1B11, 1B21 and 1C11.
As a result, the TRMM products will become part of the ongoing GPM product suite. The current file specifications document for these products is available via ftp at the following location:
ftp://gpmweb2.pps.eosdis.nasa.gov/pub/GPMfilespec/filespec.GPM.pdf

TRMM version 7 orders will be processed and distributed through October 1st, 2017. With the start of TRMM version 8 level 1 processing, the TRMM version 7 data will no longer be available through STORM: https://storm.pps.eosdis.nasa.gov/storm/ , but they will remain accessible from our arthurhou archives:  ftp://arthurhou.pps.eosdis.nasa.gov/trmmdata/ByDate/V07/

As TRMM version 8 level 1 products become available on October 2, 2017, they will appear both in STORM and on "arthurhou".    

PPS will reprocess the entire TRMM mission life data.  All users are encouraged to retrieve the improved TRMM version 8 level 1 products to ensure that they are using the latest algorithms. The TRMM level 1 product types, start time and end time are listed below:
DataType                                Start of Data                                       End of Data

1ATMI                                   1997-12-07 23:57:17               2015-04-08 15:25:02
1AVIRS                                  1997-12-20 23:57:03               2014-03-21 23:03:44
1BPR                                     1997-12-07 23:57:17               2015-04-01 11:58:38
1BTMI                                   1997-12-07 23:57:17               2015-04-08 15:25:02
1BVIRS                                  1997-12-20 23:57:03               2014-03-21 23:03:44
1CTRMMTMI                           1997-12-07 23:57:17               2015-04-08 15:25:02

All TRMM version 8 level 1 data products will be held until they have been reviewed and verified by the Science Team.  TRMM version 8 level 1 products will be announced and released to the public upon their approval.

The reprocessing of TRMM level 2, level 3 products will be commenced at a later date.  Processing of the L1 products for the GPM constellation satellites will commence upon completion of the TRMM L1 version 8 reprocessing.
TRMM version 8 level 1 release notes and other documentation can be found on the PPS public website at: 
https://pps.gsfc.nasa.gov/ppsdocuments.html

Other level 1 / level 1C 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/ 

Please contact us for any questions.

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On September 26 at about 14:45 UTC the GPM radar was commanded to undertake an experimental Ka scanning approach.  As the radar is not in normal observational mode no normal observational data is being generated from either the Ku or the Ka radar.

This situation will continue until approximately 14:40 UTC on 29 September 2017 when the radar will be commanded back to its observational scanning approach.

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For V05 we produced a daily gridded text product for precipitation data from the core satellite and from the partner constellation imagers.  We also produced a monthly rollup of these gridded text products. They were all designated with the product version V05A.  If you downloaded these products, we regret to inform you that we found an error in the calculation of convection rate and frozen rate. While the mean precipitation rate values were correct in V05A, convective and frozen rates were erroneous.

We have made the necessary changes to the code that produces these products. After extensive analysis and comparison with the individual GPROF level 3 products we are confident that convective and frozen rates are now correctly calculated. As a result the gridded text products for the core satellite and the constellation imager satellites will be rerun.  V05A products will be withdrawn and replaced with V05B products. This data version will appear on both the daily products and the monthly rollups.

At the same time we have verified that the gridded text products of precipitation retrievals from the partner constellation sounders are correctly calculated. We have also verified that the monthly rollups are correct. So, we will release for the first time in version 5 the sounder gridded text products. They will have the data product version of V05A. 

Please contact us for any questions.

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PPS received new GPM Ka/Ku L1B products from JAXA and reprocessed the affected data including Level 2 and 3 daily products from 2017-07-29 00:34:47 -> 2017-07-29 02:07:20.

If you have obtained any of these files from our archive or through a Standing Order, etc., please discard these and use the replacement products.

The following files and corresponding browse products will be replaced

GPMCOR_KAR_1707290034_0207_019406_1BS_DAB_05A.h5
GPMCOR_KUR_1707290034_0207_019406_1BS_DUB_05A.h5

2A.GPM.Ka.V7-20170308.20170729-S003447-E020720.019406.V05A.HDF5
2A.GPM.Ku.V7-20170308.20170729-S003447-E020720.019406.V05A.HDF5
2A.GPM.DPR.V7-20170308.20170729-S003447-E020720.019406.V05A.HDF5
2B.GPM.DPRGMI.CORRA2016.20170729-S003447-E020720.019406.V05A.HDF5
2B.GPM.DPRGMI.2HCSHv3-1.20170729-S003447-E020720.019406.V05A.HDF5
2A.GPM.DPR.GPM-SLH.20170729-S003447-E020720.019406.V05A.HDF5
3B-ORBIT.GPM.DPRGMI.3GCSHv3-1.20170729-S003447-E020720.019406.V05A.HDF5
3A-ORBIT.GPM.DPR.GPM-SLH.20170729-S003447-E020720.019406.V05A.HDF5
3B-DAY.GPM.DPRGMI.CORRAGD.20170729-S000000-E235959.210.V05A.HDF5
3A-DAY.GPM.DPR.V2-20170410.20170729-S000000-E235959.210.V05A.HDF5
3A-DAY-ASC.GPM.DPR.V2-20170410.20170729-S000000-E235959.210.V05A.HDF5
3A-DAY-DES.GPM.DPR.V2-20170410.20170729-S000000-E235959.210.V05A.HDF5

We apologize for any inconvenience this may have caused.  Please let us know if you have any questions or concerns. 

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PPS received new GPM Ka/Ku L1B products from JAXA and reprocessed the affected data including Level 2 and 3 data (2AKa, 2AKu, 2ADPR, 2BCMB, 2HSLH, 3GSLH) from 2017-07-13 09:36:54 -> 2017-07-13 11:09:28.

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.

The following files and corresponding browse products will be replaced:

GPMCOR_KAR_1707130936_1109_019163_1BS_DAB_05A.h5
GPMCOR_KUR_1707130936_1109_019163_1BS_DUB_05A.h5

2A.GPM.Ka.V7-20170308.20170713-S093654-E110928.019163.V05A.HDF5
2A.GPM.Ku.V7-20170308.20170713-S093654-E110928.019163.V05A.HDF5
2A.GPM.DPR.V7-20170308.20170713-S093654-E110928.019163.V05A.HDF5
2B.GPM.DPRGMI.CORRA2016.20170713-S093654-E110928.019163.V05A.HDF5
2A.GPM.DPR.GPM-SLH.20170713-S093654-E110928.019163.V05A.HDF5
3A-ORBIT.GPM.DPR.GPM-SLH.20170713-S093654-E110928.019163.V05A.HDF5

We apologize for any inconvenience this may have caused.  Please let us know if you have any questions or concerns. 

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