General Documentation
GRACE Science Data System Development Plan
GRACE 327-710
Revision: C
Authors: M. Watkins, T. Gruber, S. Bettadpur
Date: August 2, 2004
Defines the GRACE Science Data System (SDS) and describes the data flow and roles and responsibilities of each SDS component.
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GRACE Product Specification Document
GRACE 327-720
Revision: 4.5
Author: S. Bettadpur
Date: February 20, 2007
Provides a detailed description of data products at all levels for the GRACE mission.
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GRACE Monthly SDS Newsletter
Revision: N/A
Author: F. Flechtner
Last Updated : January 2004 - today
Monthly newletter provided by the GRACE Science Data System describing science relevant events on the GRACE spacecrafts and statistics on L0, L1 and L2 product generation.
(Newsletter FTP Directory)
Level 1B Documentation
GRACE Level 1B Data Product User Handbook JPL D-22027
GRACE 327-733
Revision: 1.2
Authors: K. Case, G. Kruizinga, and S.C. Wu
Date: January 21,2004
Provides a comprehensive description of the content and format of the Level 1B data.
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AOD1B Product Description Document
GRACE 327-750
Revision: 3.1
Author: F. Flechtner
Date: April 13, 2007
Describes the atmospheric and ocean de-aliasing product (AOD1B) and the barotropic ocean model output (OCN1B).
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Algorithm Theoretical Basis Document for GRACE Level 1B Data Processing
GRACE 327-741
Revision: 1.2
Authors: S.C. Wu, G. Kruizinga, W. Bertiger
Date: May 9, 2006
Describes the algorithms producing the main quantities on the Level 1B data.
Level 2 Documentation
GFZ Level-2 Processing Standards Document for Product Release 04
GRACE 327-743
Revision: 1.0
Author: F. Flechtner
Date: February 19, 2007
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 04 generated at GFZ.
Release 03 Documentation
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CSR Level-2 Processing Standards Document for Product Release 04
GRACE 327-742
Revision: 3.1
Author: S. Bettadpur
Date: February 27, 2007
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 04 generated at CSR.
Release 01 Documentation
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JPL Level-2 Processing Standards Document for Product Release 04
GRACE 327-744
Revision: 4.1
Authors: M. Watkins. D. Yuan
Date: February 27, 2007
Describes the processing standards, models, and parameters adopted for the Level-2 Product Release 04 generated at JPL.
Release 02 Documentation
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GRACE Gravity Field Solution Data Format
GRACE 327-732
Revision: 1.1
Author: F. Flechtner
Date: November 27, 2003
Describes the Level-2 GRACE gravity data formats.
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Level-2 Gravity Field Product User Handbook
GRACE 327-734
Revision: 2.3
Author: S. Bettadpur
Date: February 20, 2007
Provides a description of the Earth gravity field estimates provided by the Level 2 processing.
Ancillary Documentation
An Analysis of Gravity-Field Estimation Based on Inter-satellite
Dual One-Way Biased Ranging
JPL Publication 98-15
Author: J.B. Thomas
Date: May 1999
Describes a dual one-way approach for extracting "high-rate" k-band intersateliite biased range measurements.
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Optimal combination of quaternions from multiple star cameras
JPL Internal Memorandum
Author: L.J. Romans
Date: May 2003 Describes a procedure for optimally combining quaternions measured simultaneously from different aligned star cameras.
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Relative Time and Frequency Alignment between Two Low Earth Orbiters
GRACE, Proceedings of IEEE, FCS, Tampa, FL
Authors: W. Bertiger, C. Dunn, I. Harris, G. Kruizinga, L. Romans, M. Watkins, and S.C. Wu
Date: May 2003
Describes the validation of the relative clock accuracy.
L1 and L2 Release Notes
Release Notes for GRACE L1B products
Author: G. Kruizinga
Last Updated : May 2, 2005
Gives additional information on GRACE L1B products
(not contained in other L1 documents).
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Release Notes for CSR RL04 GRACE L2 products
Author: S. Bettadpur
Last Updated: April 22, 2008
Gives additional information on CSR RL04 GRACE L2 products (not contained in CSR RL04 processing standards document).
CSR RL01 Release Notes
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Release Notes for GFZ RL04 GRACE L2 products
Author: F. Flechtner
Last Updated: April 27, 2008
Gives additional information on GFZ RL04 GRACE L2 products (not contained in GFZ RL04 processing standards document).
GFZ RL03 Release Notes
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Release Notes for JPL RL04 GRACE L2 products
Author: D. Yuan
Last Updated: March 27, 2008
Gives additional information on JPL RL04 GRACE L2 products (not contained in JPL RL04 processing standards document).
JPL RL02 Release Notes
Technical Notes
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.
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GRACE Technical Note #02: ACC blases
Author: S. Bettadpur
Last Updated:January 21, 2004
Provides recommendations for a-priori bias & scale parameters for Level 1B ACC data.
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GRACE Technical Note #03: Sequence of Events (SOE) format description
Author: G. Kruizinga
Last Updated: October 20, 2004
Provides a detailed description and format information on how the SOE file is organized.
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GRACE Technical Note #04: Usage guidelines for GFZ RL03 and JPL RL02 GRACE gravity fields & atmosphere/ocean background models
Authors: S. Bettadpur, F. Flechtner, R. Schmidt
Last Updated: May 9, 2006
Provides detailed guidelines for usage on GFZ RL03 and JPL RL02 GRACE models.
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GRACE Technical Note #05: Monthly estimates of C20 from 5 SLR satellites
Authors: M. Cheng, J. Ries
Last Updated: March 19, 2008 - last month reported is January 2008
Provides C20 estimates obtained from SLR analysis which may be used when analyzing CSR RL01 L2 products.
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GRACE Technical Note #06: Impact of change in AOD1B on RL04 monthly GSM
Author: S. Bettadpur
Last Updated: Feburary 21, 2008
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. |
