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   GRACE Technical Note #07 March 2016 
Description: TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created March 3, 2016 - last month reported is January 2016. 

!!!      PLEASE NOTE NEW COMMENT IN ITEM #6     !!!

SPECIAL NOTES: Please use these estimates to replace the C20 values from the GSM
        files of the GRACE RL05 products only. These estimates should not
        be used with the GRACE RL04 or earlier products. In particular, a
        rate for C20 has not been modeled for RL05, whereas a rate was
        modeled for RL04.

        1) The GRACE gravity solution from CSR for 'November 2011' actually
        spans October 17, 2011 to November 16, 2011, due to the lack of
        useful accelerometer data in the latter half of November. A
        replacement value of C20 is provided for this special solution
        (denoted by *) as well as for the full calendar month of November 2011. 

        2) The GRACE gravity solution from CSR for 'December 2011' actually
        spans December 12, 2011 to January 11, 2012, due to the lack of
        useful accelerometer data in the first half of December. A
        replacement value of C20 is provided for this special solution
        (denoted by *) as well as for the full calendar month of December 2011. 

        3) The GRACE gravity solution from CSR for 'April 2012' actually
        spans March 20, 2012 to April 19, 2012, due to the lack of
        useful accelerometer data in the latter half of April. A
        replacement value of C20 is provided for this special solution 
        (denoted by *).

        4) The estimates from June 2013 through June 2014 have been updated.
        The previous values were biased due to an error in the AOD1B model, which
        has been corrected. The updated values are consistent with the re-released 
        RL05 solutions for these months.

        5) The GRACE gravity solution from CSR for 'May 2015' actually
        spans April 12, 2015 to May 11, 2015, due to the lack of
        useful data in the latter half of May. A replacement value is 
        provided for this special solution (denoted by *).

        6) The 'monthly' RL05 solutions from December 2015 onward will not necessarily 
        be based on GRACE data from just one month. The epoch of the C20 replacement will
        be indicated by the same epoch of the data in the RL05 solution. As before, these 
        special cases will by denoted by *
Filesize: 0 Bytes
Added on: 09-Mar-2016
Author: M. Cheng & J. Ries
Downloads: 548
Category: GRACE / Old Documents
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  GRACE Technical Note #07 February 2016 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created February 4, 2016 - last month reported is 'December 2015'.

!!! PLEASE NOTE NEW COMMENT IN ITEM #6 !!!

SPECIAL NOTES: Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.

5) The GRACE gravity solution from CSR for 'May 2015' actually
spans April 12, 2015 to May 11, 2015, due to the lack of
useful data in the latter half of May. A replacement value is
provided for this special solution (denoted by *).

6) The 'monthly' RL05 solutions from December 2015 onward will not necessarily
be based on GRACE data from just one month. The epoch of the C20 replacement will
be indicated by the same epoch of the data in the RL05 solution. As before, these
special cases will by denoted by *.
Filesize: 14.21 KB
Added on: 17-Feb-2016
Author: M. Cheng & J. Ries
Downloads: 470
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 November_II 2015 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created November 10, 2015 - last month reported is September 2015.

SPECIAL NOTES: Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.

5) The GRACE gravity solution from CSR for 'May 2015' actually
spans April 12, 2015 to May 11, 2015, due to the lack of
useful data in the latter half of May. A replacement value is
provided for this special solution (denoted by *).
Filesize: 13.68 KB
Added on: 23-Nov-2015
Author: M. Cheng & J. Ries
Downloads: 566
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 November 2015 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created November 4, 2015 - last month reported is September 2015.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 13.36 KB
Added on: 06-Nov-2015
Author: M. Cheng & J. Ries
Downloads: 536
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 September 2015  
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created September 9, 2015 - last month reported is July 2015.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 13.87 KB
Added on: 18-Sep-2015
Author: M. Cheng & J. Ries
Downloads: 521
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 May 2015 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created May 4, 2015 - last month reported is March 2015.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 13.02 KB
Added on: 06-May-2015
Author: M. Cheng & J. Ries
Downloads: 562
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 April 2015  
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created April 10, 2015 - last month reported is February 2015.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 12.97 KB
Added on: 16-Apr-2015
Author: M. Cheng & J. Ries
Downloads: 550
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 February 2015 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created February 18, 2015 - last month reported is January 2015.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 12.92 KB
Added on: 25-Feb-2015
Author: M. Cheng & J. Ries
Downloads: 583
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 January 2015 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created January 12, 2015 - last month reported is November 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM files of the GRACE RL05 products only. These estimates should not be used with the GRACE RL04 or earlier products. In particular, a rate for C20 has not been modeled for RL05, whereas a rate was modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually spans October 17, 2011 to November 16, 2011, due to the lack of useful accelerometer data in the latter half of November. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually spans December 12, 2011 to January 11, 2012, due to the lack of useful accelerometer data in the first half of December. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually spans March 20, 2012 to April 19, 2012, due to the lack of useful accelerometer data in the latter half of April. A replacement value of C20 is provided for this special solution (denoted by *).

4) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which has been corrected. The updated values are consistent with the re-released RL05 solutions for these months.
Filesize: 12.81 KB
Added on: 26-Jan-2015
Author: M. Cheng & J. Ries
Downloads: 553
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 December 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created December 4, 2014 - last month reported is October 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM files of the GRACE RL05 products only. These estimates should not be used with the GRACE RL04 or earlier products. In particular, a rate for C20 has not been modeled for RL05, whereas a rate was modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually spans October 17, 2011 to November 16, 2011, due to the lack of useful accelerometer data in the latter half of November. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually spans December 12, 2011 to January 11, 2012, due to the lack of useful accelerometer data in the first half of December. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually spans March 20, 2012 to April 19, 2012, due to the lack of useful accelerometer data in the latter half of April. A replacement value of C20 is provided for this special solution (denoted by *).

4) The estimates from June 2013 through June 2014 have been updated. The previous values were biased due to an error in the AOD1B model, which has been corrected. The updated values are consistent with the re-released RL05 solutions for these months.
Filesize: 12.75 KB
Added on: 08-Dec-2014
Author: M. Cheng & J. Ries
Downloads: 622
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 November 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created November 8, 2014 - last month reported is September 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM files of the GRACE RL05 products only. These estimates should not be used with the GRACE RL04 or earlier products. In particular, a rate for C20 has not been modeled for RL05, whereas a rate was modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually spans October 17, 2011 to November 16, 2011, due to the lack of useful accelerometer data in the latter half of November. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually spans December 12, 2011 to January 11, 2012, due to the lack of useful accelerometer data in the first half of December. A replacement value of C20 is provided for this special solution (denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually spans March 20, 2012 to April 19, 2012, due to the lack of useful accelerometer data in the latter half of April. A replacement value of C20 is provided for this special solution (denoted by *).

4) The estimates from June 2013 through June 2014 have been updated. The previous values were biased due to an error in the AOD1B model, which has been corrected. The updated values are consistent with the re-released RL05 solutions for these months.
Filesize: 12.70 KB
Added on: 13-Nov-2014
Author: M. Cheng & J. Ries
Downloads: 650
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 October 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created September 23, 2014 - last month reported is June 2014.

IMPORTANT! Please read Note 5

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.

5) The estimates from June 2013 through June 2014 have been updated.
The previous values were biased due to an error in the AOD1B model, which
has been corrected. The updated values are consistent with the re-released
RL05 solutions for these months.
Filesize: 12.66 KB
Added on: 05-Oct-2014
Author: M. Cheng & J. Ries
Downloads: 582
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 July_II 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created July 30, 2014 - last month reported is June 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 12.31 KB
Added on: 04-Aug-2014
Author: M. Cheng & J. Ries
Downloads: 626
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 June 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created June 19, 2014 - last month reported is April 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 12.16 KB
Added on: 30-Jun-2014
Author: M. Cheng & J. Ries
Downloads: 628
Category: GRACE / Old Documents
Details

  AOD1B Product Description Document for Product Release 05 
Description: Describes the atmospheric and oceanic de-aliasing product (AOD1B) for Release 05
Version: 4.2
Filesize: 1.70 MB
Added on: 27-May-2014
Author: F. Flechtner, H. Dobslaw & E. Fagiolini
Downloads: 960
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 May 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created May 7, 2014 - last month reported is March 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 12.14 KB
Added on: 20-May-2014
Author: M. Cheng & J. Ries
Downloads: 632
Category: GRACE / Old Documents
Details

  AOD1B Product Description Document for Product Release 05 
Description: Describes the atmospheric and oceanic de-aliasing product (AOD1B) for Release 05
Version: 4.1
Filesize: 1.62 MB
Added on: 07-Apr-2014
Author: F. Flechtner, H. Dobslaw & E. Fagiolini
Downloads: 921
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 March 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created March 26, 2014 - last month reported is January 2014.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 12.04 KB
Added on: 28-Mar-2014
Author: M. Cheng & J. Ries
Downloads: 666
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 January_2 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created January 28, 2014 - last month reported is December 2013.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 11.99 KB
Added on: 30-Jan-2014
Author: M. Cheng & J. Ries
Downloads: 782
Category: GRACE / Old Documents
Details

  GRACE Technical Note #07 January 2014 
Description: GRACE Technical Note 07

TITLE: Monthly estimates of C20 from 5 SLR satellites based on GRACE RL05 models.

UPDATE HISTORY: Created January 9, 2014 - last month reported is October 2013.

SPECIAL NOTES:
Please use these estimates to replace the C20 values from the GSM
files of the GRACE RL05 products only. These estimates should not
be used with the GRACE RL04 or earlier products. In particular, a
rate for C20 has not been modeled for RL05, whereas a rate was
modeled for RL04.

1) The GRACE gravity solution from CSR for 'November 2011' actually
spans October 17, 2011 to November 16, 2011, due to the lack of
useful accelerometer data in the latter half of November. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of November 2011.

2) The GRACE gravity solution from CSR for 'December 2011' actually
spans December 12, 2011 to January 11, 2012, due to the lack of
useful accelerometer data in the first half of December. A
replacement value of C20 is provided for this special solution
(denoted by *) as well as for the full calendar month of December 2011.

3) The GRACE gravity solution from CSR for 'April 2012' actually
spans March 20, 2012 to April 19, 2012, due to the lack of
useful accelerometer data in the latter half of April. A
replacement value of C20 is provided for this special solution
(denoted by *).

4) A small error which affected some of the solutions for 2013 has
been corrected.
Filesize: 11.88 KB
Added on: 16-Jan-2014
Author: M. Cheng & J. Ries
Downloads: 825
Category: GRACE / Old Documents
Details



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