View in EDS

Performance assessment of multiple LRI1B products for GRACE-FO time-variable gravity field recovery.

Saved in:
Bibliographic Details
Title: Performance assessment of multiple LRI1B products for GRACE-FO time-variable gravity field recovery.
Authors: Zhang, Jiahui1 (AUTHOR), Tu, Rui1 (AUTHOR) turui-2004@126.com, You, Wei2 (AUTHOR), Zhang, Pengfei1 (AUTHOR)
Source: Advances in Space Research. Aug2026, Vol. 78 Issue 3, p2154-2167. 14p.
Subjects: Laser interferometers, Gravitational fields, Gravity anomalies, Data integrity, Satellite geodesy, White noise theory, Artificial satellites
Abstract: The Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) satellites carry a novel technology demonstration instrument, the laser ranging interferometer (LRI), parallel to the microwave interferometer (MWI) for inter satellite ranging. As critical geometric observations for capturing the Earth gravity field variation, the quality of monthly gravity field solutions and the characterization of residual sub-monthly signals are significantly influenced by the performance of the LRI Level-1B (LRI1B) data products. Currently, multiple versions of LRI1B products are independently processed and released by the Albert Einstein Institute (AEI), the Huazhong University of Science and Technology (HUST), the Jet Propulsion Laboratory (JPL), and the Sun Yat-sen University (SYSU). Here, we examine the performance of multiple LRI1B datasets on GRACE-FO time-variable gravity field recovery through data cross comparison, monthly LRI-based gravity solutions, and post-fit residuals from January 2019 to June 2023. All LRI1B data products maintain high data availability of ∼85%. Direct cross comparisons reveal that the JPL v04 product presents systematically higher noise within the high frequency band exceeding 0.1 Hz. As for monthly gravity field solutions, spectral and geospatial analyses demonstrate that all four gravity solutions are consistent with GRACE-FO Science Data System (SDS) products, achieving comparable noise levels with an average open ocean root mean square of 3.06 cm and signal recovery correlations of ∼0.99 for annual mass variations. However, significant divergences are identified in the post-fit range rate and range acceleration residuals. With the low frequency component excluded, the JPL solution exhibits a noise floor of 4 × 10−10 m/s2 for range acceleration residuals, whereas the AEI, HUST, and SYSU solutions maintain noise levels below 2 × 10−10 m/s2. While the high frequency noise does not degrade monthly solutions, it presents a potential limitation for the extraction of subtle sub-monthly geophysical signals. These findings provide a scientific basis for data product selection and laser data processing strategies for the future mission. [ABSTRACT FROM AUTHOR]
Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 195145983
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Performance assessment of multiple LRI1B products for GRACE-FO time-variable gravity field recovery.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Jiahui%22">Zhang, Jiahui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tu%2C+Rui%22">Tu, Rui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> turui-2004@126.com</i><br /><searchLink fieldCode="AR" term="%22You%2C+Wei%22">You, Wei</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Pengfei%22">Zhang, Pengfei</searchLink><relatesTo>1</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Advances+in+Space+Research%22">Advances in Space Research</searchLink>. Aug2026, Vol. 78 Issue 3, p2154-2167. 14p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Laser+interferometers%22">Laser interferometers</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitational+fields%22">Gravitational fields</searchLink><br /><searchLink fieldCode="DE" term="%22Gravity+anomalies%22">Gravity anomalies</searchLink><br /><searchLink fieldCode="DE" term="%22Data+integrity%22">Data integrity</searchLink><br /><searchLink fieldCode="DE" term="%22Satellite+geodesy%22">Satellite geodesy</searchLink><br /><searchLink fieldCode="DE" term="%22White+noise+theory%22">White noise theory</searchLink><br /><searchLink fieldCode="DE" term="%22Artificial+satellites%22">Artificial satellites</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The Gravity Recovery and Climate Experiment Follow-on (GRACE-FO) satellites carry a novel technology demonstration instrument, the laser ranging interferometer (LRI), parallel to the microwave interferometer (MWI) for inter satellite ranging. As critical geometric observations for capturing the Earth gravity field variation, the quality of monthly gravity field solutions and the characterization of residual sub-monthly signals are significantly influenced by the performance of the LRI Level-1B (LRI1B) data products. Currently, multiple versions of LRI1B products are independently processed and released by the Albert Einstein Institute (AEI), the Huazhong University of Science and Technology (HUST), the Jet Propulsion Laboratory (JPL), and the Sun Yat-sen University (SYSU). Here, we examine the performance of multiple LRI1B datasets on GRACE-FO time-variable gravity field recovery through data cross comparison, monthly LRI-based gravity solutions, and post-fit residuals from January 2019 to June 2023. All LRI1B data products maintain high data availability of ∼85%. Direct cross comparisons reveal that the JPL v04 product presents systematically higher noise within the high frequency band exceeding 0.1 Hz. As for monthly gravity field solutions, spectral and geospatial analyses demonstrate that all four gravity solutions are consistent with GRACE-FO Science Data System (SDS) products, achieving comparable noise levels with an average open ocean root mean square of 3.06 cm and signal recovery correlations of ∼0.99 for annual mass variations. However, significant divergences are identified in the post-fit range rate and range acceleration residuals. With the low frequency component excluded, the JPL solution exhibits a noise floor of 4 × 10−10 m/s2 for range acceleration residuals, whereas the AEI, HUST, and SYSU solutions maintain noise levels below 2 × 10−10 m/s2. While the high frequency noise does not degrade monthly solutions, it presents a potential limitation for the extraction of subtle sub-monthly geophysical signals. These findings provide a scientific basis for data product selection and laser data processing strategies for the future mission. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Advances in Space Research is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=195145983
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.asr.2026.05.030
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 2154
    Subjects:
      – SubjectFull: Laser interferometers
        Type: general
      – SubjectFull: Gravitational fields
        Type: general
      – SubjectFull: Gravity anomalies
        Type: general
      – SubjectFull: Data integrity
        Type: general
      – SubjectFull: Satellite geodesy
        Type: general
      – SubjectFull: White noise theory
        Type: general
      – SubjectFull: Artificial satellites
        Type: general
    Titles:
      – TitleFull: Performance assessment of multiple LRI1B products for GRACE-FO time-variable gravity field recovery.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zhang, Jiahui
      – PersonEntity:
          Name:
            NameFull: Tu, Rui
      – PersonEntity:
          Name:
            NameFull: You, Wei
      – PersonEntity:
          Name:
            NameFull: Zhang, Pengfei
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 08
              Text: Aug2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 02731177
          Numbering:
            – Type: volume
              Value: 78
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Advances in Space Research
              Type: main
ResultId 1