GRACE Science Data System Development Plan GRACE 327-710 Revision: C |
Defines the GRACE Science Data System (SDS) and describes the data flow and roles and responsibilities of each SDS component. |
GRACE Product Specification Document Revision: 4.6 |
Provides a detailed description of data products at all levels for the GRACE mission. |
GRACE Monthly SDS Newsletter
Revision: N/A |
Monthly newsletter provided by the GRACE Science Data System describing science relevant events on the GRACE space crafts and statistics on L0, L1 and L2 product generation. |
GRACE Level 1B Data Product User Handbook JPL D-22027 Revision: 1.3 |
Provides a comprehensive description of the content and format of the Level 1B data. |
AOD1B Product Description Document Revision: 6.1 |
Describes the atmospheric and ocean de-aliasing product (AOD1B) and the barotropic ocean model output (OCN1B). |
Algorithm Theoretical Basis Document for GRACE Level 1B Data Processing Revision: 1.2 |
Describes the algorithms producing the main quantities on the Level 1B data. |
GFZ Level-2 Processing Standards Document for Product Release 06 Revision: 0.0 |
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 06 generated at GFZ. |
CSR Level-2 Processing Standards Document for Product Release 06 Revision: 5.0 |
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 06 generated at CSR. |
JPL Level-2 Processing Standards Document for Product Release 06 Revision: 6.0 |
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 06 generated at JPL. |
GRACE Gravity Field Solution Data Format Revision: 1.1 |
Describes the Level-2 GRACE gravity data formats. |
Level-2 Gravity Field Product User Handbook Revision: 4.0 |
Provides a description of the Earth gravity field estimates provided by the Level 2 processing. |
Author: J.B. Thomas |
Describes a dual one-way approach for extracting "high-rate" k-band intersateliite biased range measurements. |
Optimal combination of quaternions from multiple star cameras Author: L.J. Romans |
Describes a procedure for optimally combining quaternions measured simultaneously from different aligned star cameras. |
Authors: W. Bertiger, C. Dunn, I. Harris, G. Kruizinga, L. Romans, M. Watkins, and S.C. Wu |
Describes the validation of the relative clock accuracy. |
Release Notes for GRACE L1B products Author: G. Kruizinga |
Gives additional information on GRACE L1B products (not contained in other L1 documents). |
Release Notes for CSR RL06 GRACE L2 products Author: S. Bettadpur |
Gives additional information on CSR RL06 GRACE L2 products (not contained in CSR RL05 processing standards document). |
Author: C. Dahle | Gives additional information on GFZ RL06 GRACE L2 products (not contained in GFZ RL05 processing standards document). |
Release Notes for JPL RL06 GRACE L2 products Author: Christopher M. McCullough, David N. Wiese, & Dah-Ning Yuan |
Gives additional information on JPL RL06 GRACE L2 products (not contained in JPL RL05 processing standards document). |
GRACE Technical Note #01: Sequence of Events (SOE) File Updated Daily |
Provides a record of changes of the state of a specific satellite sensor or satellite event, which may alter the processing parameters used for the L1B processing. This file is updated on a daily basis. |
GRACE Technical Note #02: ACC blases Author: S. Bettadpur |
Provides recommendations for a-priori bias & scale parameters for Level 1B ACC data. |
GRACE Technical Note #03: Sequence of Events (SOE) format description Author: G. Kruizinga |
Provides a detailed description and format information on how the SOE file is organized. |
Authors: S. Bettadpur, F. Flechtner, R. Schmidt |
Provides detailed guidelines for usage on GFZ RL03 and JPL RL02 GRACE models. |
GRACE Technical Note #05: Monthly estimates of C20 from 5 SLR satellites Authors: M. Cheng and J. Ries |
Provides C20 estimates obtained from SLR analysis which may be used when analyzing CSR RL04 L2 products. |
GRACE Technical Note #06: Impact of change in AOD1B on RL04 monthly GSM Author: S. Bettadpur |
Discusses the impact on GRACE level 2 products of the reprocessing of June 2006 through September 2007 GRACE AOD1B data. It is recommended that the following products be replaced with the re-processed ones: AOD1B, GSM-2, GAC-2, and GAD-2. |
GRACE Technical Note #07: Monthly estimates of C20 from 5 satellites based on GRACE RL05 models Authors: M. Cheng and J.Ries |
Provides RL05-compatible values of SLR-drived C20 harmonics to replace those found in CSR/JPL-RL05 GSM files. |
Corrections to adjust for the discontinuities found in atmospheric pressure for products GAA and GAC due to periodic updates in the ECMWF model for the time period February 2006 to January 2010. See the AOD1B documentation for more details. | |
Corrections to adjust for the discontinuities found in atmospheric pressure for products GAA and GAC due to periodic updates in the ECMWF model for the time period February 2010 to May 2015. See the AOD1B documentation for more details. | |
GRACE Technical Note #10: Corrections for discontinuities in atmospheric pressure data for May 2015 and after | Corrections to adjust for the discontinuities found in atmospheric pressure for products GAA and GAC due to periodic updates in the ECMWF model for the time period May 2015 and after. See the AOD1B documentation for more details. |
GRACE Technical Note #11: Monthly estimates of C20 from 5 satellites based on GRACE RL06 models |
Use these estimates to replace the C20 values from the GSM files of the GRACE RL06 products only. These estimates are not intended to be used with the GRACE RL05 or earlier products. |
GRACE Technical Note #12: Convert Global Mean OBP -> Global Mean Ocean Mass | This calculation uses AOD1B 'GAC' fields, and integrates over the ocean-area only; due to the definition of 'GAC' (see AOD1B handbook for further details), the resulting mean value effectively represents 'mean tmospheric mass over the global ocean' for each time step. |