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Main / GRACE / Frequently Updated Documents: Newsletters

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  SDS Newsletter for May 2016 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for May 2016. The products are based on 24 days of data between May 8 and May 31.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/ already including the coarse session program. Registration and abstract submission is possible already since July 11. Please note the deadline for abstract submission deadline September 11!
* The GRACE Information System and Data Center (ISDC, http://isdc.gfz-potsdam.de/grace-isdc/) archive has been reorganized. GRACE data and documentation is now provided by (anonymous) FTP.
Filesize: 458.29 KB
Added on: 01-Sep-2016
Author: F. Flechtner
Downloads: 931
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for April 2016 
Description: Highlights this month:

* No RL05 Level-2 products could be generated and delivered for April 2016 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries (see also section Level-1 Data Processing).
* Due to a processing bug, the originally published GFZ Level-2 GSM product for February 2016 (labelled ‘GSM-2_2016029-2016060_0032_EIGEN_G---_005a‘) turned out to be erroneous. A correct product has been generated which has replaced the previous wrong one in the GRACE archives ISDC and PO.DAAC. Please make sure that you use the correct version of the GSM product for February 2016. This can be checked by looking at the product generation date (to be found in the record ‘FIRST’ of the Level-2 product file) which should be ‘20160615’. Note that only the GSM files (*.gz and *.txt) are affected; the corresponding GAx products remain unchanged.
* A Version 2.0 of the JPL Mascon solution, processed through March 2016, is now available at the GRACE Tellus website at http://grace.jpl.nasa.gov/.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/ already including the coarse session program. Registration and abstract submission is possible starting on July 11. Please note the deadlines for special rates for accommodation (August 15) and abstract submission (September 11).
Filesize: 457.41 KB
Added on: 20-Jun-2016
Author: F. Flechtner
Downloads: 1001
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for March 2016 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for March 2016. The products are based on 31 days of data between March 1 and March 31.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/ already including the coarse session program. Registration and abstract submission is possible starting on July 11. Please note the deadlines for special rates for accommodation (August 15) and abstract submission (September 11)
Filesize: 460.52 KB
Added on: 03-Jun-2016
Author: F. Flechtner
Downloads: 538
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for February 2016 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for February 2016. The products are based on 32 days of data between January 29 and February 29.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/. Registration and abstract submission is possible starting on July 4. Please note the deadlines for special rates for accommodation (August 15) and abstract submission (September 11).
Filesize: 458.24 KB
Added on: 11-May-2016
Author: F. Flechtner
Downloads: 604
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for January 2016 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for January 2016. The products are based on 25 days of data between January 4 and January 28.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/ . Registration and abstract submission is possible starting on July 4. Please note the deadlines for special rates for accommodation (August 15) and abstract submission (September 11).
Filesize: 455.69 KB
Added on: 30-Mar-2016
Author: F. Flechtner
Downloads: 625
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for December 2015 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for December 2015. The products are based on 24 days of data between December 11 and January 3.
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site has been established at http://gstm2016.gfz-potsdam.de/gstm-2016/. Registration and abstract submission is possible starting on July 4. Please note the deadlines for special rates for accommodation (August 15) and abstract submission (September 11).
Filesize: 450.48 KB
Added on: 24-Feb-2016
Author: F. Flechtner
Downloads: 583
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for November 2015 
Description: Highlights this month:

* No RL05 Level-2 products could be generated and delivered for November 2015 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries (see also section Level-1 Data Processing).
Filesize: 445.31 KB
Added on: 12-Jan-2016
Author: F. Flechtner
Downloads: 621
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for October 2015 
Description: Highlights this month:

* No RL05 Level-2 products could be generated and delivered for October 2015 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries (see also section Level-1 Data Processing).
* GFZ has generated a new Level-2 correction product 'GAG' which accounts for changes in ECMWF data in May 2015. As already done for GAE and GAF, the GAG product is provided as a GRACE Technical Note (TN-10_GAG-2_2015132-2099001_0000_EIGEN_G---_0005). As a consequence of having a GAG product now, the filename of the GAF product (defined by the period where GAF should be applied) also needed to be changed (now TN-09_GAF-2_2010032-2015131_0000_EIGEN_G---_0005). Additionally, the AOD1B Product Description Document has been updated to include the GAG product (Version 4.4). All files are available in the GRACE archives at JPL and PO.DAAC.
Filesize: 445.45 KB
Added on: 17-Dec-2015
Author: F. Flechtner
Downloads: 598
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for September 2015 
Description: Highlights this month:

*CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for September 2015.

Additionally, I am sorry to notify you the sad news that the US GRACE Science Team Member John Wahr has passed away on November 11. John's son, Andy, created a website www.johnwahr.com for John. This website has a message section that people can write about John. John's family appreciates people's writings about John at this site.
Filesize: 438.53 KB
Added on: 16-Nov-2015
Author: F. Flechtner
Downloads: 683
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for August 2015 
Description: Highlights this month:

* GFZ has generated and delivered RL05a Level-2 products for September 2014.
* CSR has generated and delivered RL05 Level-2 products for October 2014.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 363.56 KB
Added on: 28-Oct-2015
Author: F. Flechtner
Downloads: 603
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for July 2015 
Description: Highlights this month:

* CSR, GFZ and JPL have generated and delivered RL05 Level-2 products for May and July 2015. The May product was made from overlap data between April 12 and May 11, July was made from overlap data between June 29 and July 31.
* GFZ has generated full variance-covariance matrices for the whole RL05a time series. These so-called CSM-products are provided to users on request. For more information, please read the 'Release Notes for GFZ GRACE Level-2 Products - version RL05' which are available in the GRACE archives.
* The GRACE Science Team Meeting 2015 was held between September 21 and 23, 2015 at UTCSR in Austin. Proceedings will be available soon at the meeting web site (http://www.csr.utexas.edu/grace/GSTM/).
* The GRACE Science Team Meeting 2016 will take place between October 5 and 7, 2016 at GFZ in Potsdam. A web site will be established early 2016.
Filesize: 369.76 KB
Added on: 14-Oct-2015
Author: F. Flechtner
Downloads: 622
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for June 2015 
Description: Highlights this month

* No RL05 Level-2 products could be generated and delivered for June 2015 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries (see also section Level-1 Data Processing).
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 at UTCSR in Austin. The abstract submission portal is now open! At the meeting web site at CSR (http://www.csr.utexas.edu/grace/GSTM/) you find also further information on sessions, housing or registration.
Filesize: 364.77 KB
Added on: 18-Aug-2015
Author: F. Flechtner
Downloads: 826
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for May 2015 
Description: Highlights this month

* No RL05 Level-2 products could be generated and delivered for May 2015 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries (see also section Level-1 Data Processing).
* The new ECMWF IFS (Integrated Forecast System) cycle 41r1, introduced on 11 May 2015, does not affect dramatically the quality of the AOD1B RL05 products. However, as in January 2006 and January 2010, again jumps at locations with high elevations have been detected since the orography resolution in the new cycle has been increased. In contrast to earlier reported plans to correct these jumps already during AOD1B generation, GFZ has decided to stay with the old procedure within RL05 (a-posteriori correction with Level-2 products) and will modify this approach starting with RL06 which is planned for autumn next year. Therefore GFZ will provide shortly a Level-2 GAG product (similar to GAE and GAF, as described in the current AOD1B Product Description Document V4.3 (will be updated accordingly)) to allow land users to correct this jump a-posteriori.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 443.57 KB
Added on: 10-Jul-2015
Author: F. Flechtner
Downloads: 793
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for April 2015 
Description: Highlights this month:

* CSR has generated and delivered RL05 Level-2 products for April 2015.
* GFZ has generated and delivered RL05a Level-2 products for April 2015.
* JPL has generated and delivered RL05.1 Level-2 products for April 2015.
* JPL has additionally generated and delivered deviant 60x30 RL05.1 Level-2 products for January, February and March 2015 for experimental use (see also corresponding newsletters).
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at <a href"http://www.csr.utexas.edu/grace/GSTM/">http://www.csr.utexas.edu/grace/GSTM/.
Filesize: 441.08 KB
Added on: 19-Jun-2015
Author: F. Flechtner
Downloads: 768
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for March 2015 
Description: Highlights this month:

* A 2-days orbit repeat cycle caused problems to calculate nominal Level-2 products for March 2015 (see also newsletters of January and February 2015 and GRACE ground track plots available at http://www.gfz-potsdam.de/en/grace). The SDS has worked on solution stabilization strategies resulting in the products as described in the following.
* CSR has generated and delivered following RL05 Level-2 products for March 2015 (Please refer to the corresponding notes on the CSR website and to the CSR L2 Release Notes):
* A standard 60x60 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 60x30 product for experimental use is provided too.
* No 96x96 solution will be generated and delivered.

* GFZ has generated and delivered following RL05a Level-2 products for March 2015 (see also GFZ L2 Release Notes):
* A standard 90x90 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 90x30 product for experimental use is provided too.

* JPL has generated and delivered following RL05.1 Level-2 products for March 2015 (see also JPL L2 Release Notes):
* A standard 60x60 solution where more aggressive than normal post-processing may be required.

* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 444.03 KB
Added on: 01-Jun-2015
Author: F. Flechtner
Downloads: 658
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for February 2015 
Description: Highlights this month:

* A 2-days orbit repeat cycle caused problems to calculate nominal Level-2 products for February 2015. This problem has and will also affect the January and March 2015 solutions. The SDS has worked on solution stabilization strategies resulting in the products as described in the following.
* CSR has generated and delivered following RL05 Level-2 products for February 2015 (Please refer to the corresponding notes on the CSR website and to the CSR L2 Release Notes):
* A standard 60x60 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 60x30 product for experimental use is provided too.
* No 96x96 solution will be generated and delivered.

* GFZ has generated and delivered following RL05a Level-2 products for February 2015 (see also GFZ L2 Release Notes):
* A regularized 90x90 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 90x30 product for experimental use is provided too.

* JPL has generated and delivered following RL05.1 Level-2 products for February 2015 (see also JPL L2 Release Notes):
A standard 60x60 solution where more aggressive than normal post-processing may be required.

* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/
Filesize: 442.83 KB
Added on: 04-May-2015
Author: F. Flechtner
Downloads: 652
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for January 2015 
Description: Highlights this month:

* A 2-days orbit repeat cycle caused problems to calculate nominal Level-2 products for January 2015. This month also suffers from late switch o­n of GRACE-A and GRACE-B MWAs o­n 2015-01-13 (see Level-1 Notes below) resulting in o­nly 19 days of useful Level-1B data.
* The orbit repeat problem will also affect the February and March 2015 solutions. The SDS has worked o­n solution stabilization strategies resulting in the products as described in the following.
* CSR has generated and delivered following RL05 Level-2 products for January 2015 (Please refer to the corresponding notes o­n the CSR website and to the CSR L2 Release Notes):
* A standard 60x60 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 60x30 product for experimental use is provided too.
* No 96x96 solution will be generated and delivered.

* GFZ has generated and delivered following RL05a Level-2 products for January 2015 (see also GFZ L2 Release Notes):
* A regularized 90x90 solution where more aggressive than normal post-processing may be required.
* Additionally, a deviant 90x30 product for experimental use is provided too.

* JPL has generated and delivered following RL05.1 Level-2 products for January 2015 (see also JPL L2 Release Notes):
* A standard 60x60 solution where more aggressive than normal post-processing may be required.

* GFZ has generated and delivered AOD1B RL05 products for 1979-2000 based o­n ERA-interim data.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow o­n the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 443.54 KB
Added on: 15-Apr-2015
Author: F. Flechtner
Downloads: 776
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for December 2014 
Description: Highlights this month:

* No RL05 Level-2 products could be generated and delivered for December 2014 due to planned switch-offs of the GRACE-A and GRACE-B Microwave Assemblies (MWA) and Instrument Control Units (ICU) in order to reduce the load on the batteries.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/.
Filesize: 426.53 KB
Added on: 03-Feb-2015
Author: F. Flechtner
Downloads: 847
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for November 2014  
Description: Highlights this month:
* CSR has generated and delivered RL05 Level-2 products for November 2014.
* GFZ has generated and delivered RL05a Level-2 products for November 2014.
* JPL has generated and delivered RL05.1 Level-2 products for November 2014.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 422.22 KB
Added on: 26-Jan-2015
Author: F. Flechtner
Downloads: 787
Category: GRACE / Frequently Updated Documents: Newsletters
Details

  SDS Newsletter for October 2014 
Description: Highlights this month:

* GFZ has generated and delivered RL05a Level-2 products for October 2014.
* JPL has generated and delivered RL05.1 Level-2 products for September and October 2014.
* The next GRACE Science Team Meeting is scheduled for September 21-23, 2015 in Austin. Further information will follow on the GSTM website at CSR at http://www.csr.utexas.edu/grace/GSTM/ .
Filesize: 422.39 KB
Added on: 05-Jan-2015
Author: F. Flechtner
Downloads: 798
Category: GRACE / Frequently Updated Documents: Newsletters
Details



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