Article(id=1322566928468656667, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322566927927591451, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2025.07.256, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1753027200000, receivedDateStr=2025-07-21, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793254127851, onlineDateStr=2026-10-29, pubDate=1773504000000, pubDateStr=2026-03-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793254127851, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793254127851, creator=13701087609, updateTime=1793254127851, updator=13701087609, issue=Issue{id=1322566927927591451, tenantId=1146029695717560320, journalId=1281212831689347082, year='2026', volume='46', issue='3', pageStart='262', pageEnd='391', issueExtLink='null', onlineDate='null', pubDate='1773504000000', pubDateStr='2026-03-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793254127723, creator='13701087609', updateTime=1793254127723, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=262, endPage=272, ext={EN=ArticleExt(id=1322566928619651612, articleId=1322566928468656667, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=Inversion of Mascon Models Based on ChiGaM Inter-Satellite Geopotential Differences, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
This study inverts a Mascon model based on inter-satellite range-rate observations from the ChiGaM satellite mission. The strategies employed during the inversion include: 1) introducing piece-wise constant acceleration (PCA) parameters to mitigate the impact of force model errors in dynamic orbit determination; 2) applying an empirical model that considers the 3-cycle-per-revolution (3-CPR) term to absorb low-frequency noise in the range-rate data; and 3) integrating multi-source data to construct the forward model and the a priori constraint matrix for parameters. Satellite data from March 2022 to December 2023 were processed to develop the Mascon model IEU-CGS-Monthly2023M. Comparative analysis with contemporaneous Mascon products from the GRACE-FO mission shows that the mass change trends derived from our model are in high agreement with the reference models at both global and regional scales. The geoid degree errors of all models closely coincide within the dominant signal degree bands. In nine selected river basins, the average correlation coefficient between our model and the reference models exceeds 0.9. Overall, the performance of the proposed model is comparable to that of the reference models. This study demonstrates high-precision Mascon inversion using ChiGaM range-rate data, validates the satellite's capability to capture time-variable gravity signals, and can serve as a reference for related data processing and applications.
, authors=Xuli TAN
1, Shanshan LI
1, *, Zhiyong HUANG
1, 2, Xinxing LI
1, Hongfa WAN
1, Xianyong PEI
1, authorsList=Xuli TAN, Shanshan LI, Zhiyong HUANG, Xinxing LI, Hongfa WAN, Xianyong PEI, authorCompany=null, correspAuthors=Shanshan LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=
All rights reserved. Unauthorized reproduction is prohibited., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322566932671349301, articleId=1322566928468656667, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=利用ChiGaM卫星星间位差反演Mascon模型, columnId=1281909276545356011, journalTitle=大地测量与地球动力学, columnName=大地测量学, runingTitle=null, highlight=null, articleAbstract=
研究基于ChiGaM卫星星间位差反演Mascon模型, 反演过程中采取的策略包括: 1)引入分段加速度(piece-wise constant acceleration, PCA)参数以减弱动力学定轨过程中力模型误差的影响; 2)采用考虑至3-CPR(cycle per revolution)的经验模型吸收星间位差中的低频噪声; 3)融合多源数据构建正演模型和参数先验约束矩阵。处理2022-03—2023-12期间卫星数据, 构建Mascon模型IEU-CGS-Monthly2023M。与GRACE-FO卫星同时期Mascon模型产品对比, 结果表明, 所反演模型计算的全球与区域质量分布变化与对比模型具有较高的一致性; 各模型大地水准面阶误差在信号占优阶次内高度重合; 在9个选定流域内, 所反演模型与对比模型的平均相关系数大于0.9;模型整体表现与对比模型相近。本文利用ChiGaM卫星星间位差实现了高精度Mascon模型反演, 验证了卫星获取重力场时变信号的能力, 可为相关数据处理及应用提供参考。
, authors=谭勖立
1, 李姗姗
1, *, 黄志勇
1, 2, 李新星
1, 万宏发
1, 裴宪勇
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版权所有,未经授权,不得转载。, copyrightOwner=大地测量与地球动力学编辑部, extLink=null, articleAbsUrl=null, sourceXml=jr7psDg9CdKAj3q6A7JvgQ==, magXml=BEJ/jZR0fY8QzfHF324JPg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=yVpysg/a1YXjp2SiPb/HAg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=/i9guDyz1BuBE5IJntONjg==, mapNumber=null, fund=null)}, authors=[Author(id=1322566933258551870, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=txl101088@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322566933422129728, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, authorId=1322566933258551870, language=EN, stringName=Xuli TAN, firstName=Xuli, middleName=null, lastName=TAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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92 (12): 1401- 1412, articleTitle=Conversion of Time-Varying Stokes Coefficients into Mass Anomalies at the Earth's Surface Considering the Earth's Oblateness, refAbstract=null)], funds=[Fund(id=1322566941076734593, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, awardId=2024YFC3212200, language=CN, fundingSource=国家重点研发计划(2024YFC3212200), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1322566933078196791, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, xref=null, ext=[AuthorCompanyExt(id=1322566933086585400, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, companyId=1322566933078196791, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 School of Surveying and Mapping, Information Engineering University, Zhengzhou 450001, China), AuthorCompanyExt(id=1322566933094974009, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, companyId=1322566933078196791, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1 信息工程大学地理空间信息学院, 郑州, 450001)]), AuthorCompany(id=1322566933162082874, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, xref=null, ext=[AuthorCompanyExt(id=1322566933174665787, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, companyId=1322566933162082874, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 National Key Laboratory of Intelligent Spatial Information, Beijing 100081, China), AuthorCompanyExt(id=1322566933183054396, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, companyId=1322566933162082874, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2 智能空间信息国家级重点实验室, 北京, 100081)])], figs=[ArticleFig(id=1322566937247335013, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 1, caption=
Flowchart of Mascon model inversion based on inter-satellite geopotential differences, figureFileSmall=yZgGeXEB4tIHMtG9ZfGdTg==, figureFileBig=yVpysg/a1YXjp2SiPb/HAg==, tableContent=null), ArticleFig(id=1322566937331221094, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图1, caption=
星间位差反演Mascon模型流程, figureFileSmall=yZgGeXEB4tIHMtG9ZfGdTg==, figureFileBig=yVpysg/a1YXjp2SiPb/HAg==, tableContent=null), ArticleFig(id=1322566937536741991, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 2, caption=
Differences between dynamic and kinematic orbits and their ASD with and without PCA parameter estimation, figureFileSmall=0tZ7GkiTipYmfna8/y/r/w==, figureFileBig=6NooMhfb3Tx+RIsi+Sj2Mg==, tableContent=null), ArticleFig(id=1322566937595462248, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图2, caption=
估计/未估计PCA参数时动力学定轨结果与运动学轨道差值和ASD, figureFileSmall=0tZ7GkiTipYmfna8/y/r/w==, figureFileBig=6NooMhfb3Tx+RIsi+Sj2Mg==, tableContent=null), ArticleFig(id=1322566937670959721, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 3, caption=
ASD of inter-satellite geopotential differences with/without error assimilation and computed by CSR RL06.3 model, figureFileSmall=DxOGGnm0TQyq1A4iMqp4lg==, figureFileBig=I2+JSe2700ASVEXOth3EmA==, tableContent=null), ArticleFig(id=1322566937759040106, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图3, caption=
误差吸收前后以及模型计算的星间位差ASD, figureFileSmall=DxOGGnm0TQyq1A4iMqp4lg==, figureFileBig=I2+JSe2700ASVEXOth3EmA==, tableContent=null), ArticleFig(id=1322566937826148971, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 4, caption=
Distribution of in-situ inter-satellite geopotential differences in May 2022, figureFileSmall=1FvtjclwUHdxH9UxWrf4Ow==, figureFileBig=dbarOjJaQqbnJ13uApXT0g==, tableContent=null), ArticleFig(id=1322566937889063532, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图4, caption=
2022-05星间位差沿轨数值分布, figureFileSmall=1FvtjclwUHdxH9UxWrf4Ow==, figureFileBig=dbarOjJaQqbnJ13uApXT0g==, tableContent=null), ArticleFig(id=1322566939138966125, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 5, caption=
Mascon forward model used in model inversion, figureFileSmall=giWiQBo9R0ZWDW6Ndb+I6A==, figureFileBig=dZzyFWeOPJOiZ5apwpQk3g==, tableContent=null), ArticleFig(id=1322566939638088302, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图5, caption=
反演采用的Mascon正演模型, figureFileSmall=giWiQBo9R0ZWDW6Ndb+I6A==, figureFileBig=dZzyFWeOPJOiZ5apwpQk3g==, tableContent=null), ArticleFig(id=1322566939721974383, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 6, caption=
Distribution of prior σ values for the Mascon model parameters, figureFileSmall=IOUaTxpIWBKDJ8rlBp3gZQ==, figureFileBig=x8CnTt6/mE9FeP8D6krgcQ==, tableContent=null), ArticleFig(id=1322566939797471856, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图6, caption=
Mascon模型参数先验σ数值分布, figureFileSmall=IOUaTxpIWBKDJ8rlBp3gZQ==, figureFileBig=x8CnTt6/mE9FeP8D6krgcQ==, tableContent=null), ArticleFig(id=1322566939868775025, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 7, caption=
Mascon grid division, figureFileSmall=AjNY+ZB3eOscLGE5bu0WuQ==, figureFileBig=ILbz3PxhTGYCNgd7sT+ciw==, tableContent=null), ArticleFig(id=1322566939944272498, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图7, caption=
Mascon格网划分, figureFileSmall=AjNY+ZB3eOscLGE5bu0WuQ==, figureFileBig=ILbz3PxhTGYCNgd7sT+ciw==, tableContent=null), ArticleFig(id=1322566940044935795, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 8, caption=
Trend of global mass variations computed by different models, figureFileSmall=zOkAYK8skExNs+g4z1gBpA==, figureFileBig=PyZl6cy98saExsCbp912lQ==, tableContent=null), ArticleFig(id=1322566940137210484, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图8, caption=
各模型计算的全球质量变化趋势, figureFileSmall=zOkAYK8skExNs+g4z1gBpA==, figureFileBig=PyZl6cy98saExsCbp912lQ==, tableContent=null), ArticleFig(id=1322566940212707957, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 9, caption=
The annual amplitude of global mass variations computed by different models, figureFileSmall=H6Cdj0efjgO3ol1ZUPvpBw==, figureFileBig=4v7cmQ8lLlbjhhO/KxluoA==, tableContent=null), ArticleFig(id=1322566940275622518, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图9, caption=
各模型计算的全球质量变化年周期振幅, figureFileSmall=H6Cdj0efjgO3ol1ZUPvpBw==, figureFileBig=4v7cmQ8lLlbjhhO/KxluoA==, tableContent=null), ArticleFig(id=1322566940330148471, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 10, caption=
Geoid degree variances of Mascon models and CSR spherical harmonic coefficient model , figureFileSmall=gEubGCWXbAZFBlONkY5IYw==, figureFileBig=vhe0pFP1/PKd21jSf9cB9A==, tableContent=null), ArticleFig(id=1322566940397257336, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图10, caption=
Mascon模型和CSR球谐系数模型大地水准面阶误差, figureFileSmall=gEubGCWXbAZFBlONkY5IYw==, figureFileBig=vhe0pFP1/PKd21jSf9cB9A==, tableContent=null), ArticleFig(id=1322566940464366201, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 11, caption=
The monthly mass variation in South American region computed by different models (represented by equivalent water height), figureFileSmall=/JcQmYvj6Fj/0kClB6fGAg==, figureFileBig=4wyv93Pd5cyCFK2Ldpf2mQ==, tableContent=null), ArticleFig(id=1322566940531475066, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图11, caption=
各模型计算的不同月份南美洲区域质量变化(等效水高表示), figureFileSmall=/JcQmYvj6Fj/0kClB6fGAg==, figureFileBig=4wyv93Pd5cyCFK2Ldpf2mQ==, tableContent=null), ArticleFig(id=1322566940602778235, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Fig. 12, caption=
Regional mass variations computed by different models in different basins, figureFileSmall=vHkOU7BYMGAIKcoE4flAqw==, figureFileBig=tsZsEVjTo9+YVNHpNSabaw==, tableContent=null), ArticleFig(id=1322566940657304188, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=图12, caption=
各模型计算的不同流域内质量变化, figureFileSmall=vHkOU7BYMGAIKcoE4flAqw==, figureFileBig=tsZsEVjTo9+YVNHpNSabaw==, tableContent=null), ArticleFig(id=1322566940745384573, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Tab. 1, caption=
Background models, unknown parameters and observation data used in inversion
, figureFileSmall=null, figureFileBig=null, tableContent=
| 背景场模型 |
| 背景场 | 模型 | 描述 |
| 地球重力场 | EIGEN-6C4[19] | 截断至300阶 |
| 海洋潮汐 | FES2014b[20] | 截断至180阶,包含34个主潮汐和327个次潮汐分量,基于导纳理论内插次潮汐分量 |
| 固体潮汐 | IERS 2010[21] | 考虑至4阶项,同时顾及频率相关项和频率无关项,潮汐系统采用tide-free |
| N体引力 | 质量点模型 | 采用DE430星历,考虑太阳、月球、木星、土星、火星和金星,考虑地球J2项影响 |
| 固体极潮 | IERS 2010[21] | 仅考虑C21和S21项,平均极移采用线性模型,地球自转参数采用EOP14 |
| 海洋极潮 | Desai模型[22] | 截断至180阶,平均极移采用线性模型 |
| 大气潮汐 | AOD1B RL06[23] | 截断至180阶,包含12个主潮汐分量 |
| 海洋大气非潮汐变化 | AOD1B RL06[23] | 截断至180阶,节点之间采用线性内插 |
| 广义相对论效应 | IERS 2010[21] | / |
| 待估参数 |
| 待估参数 | 属性 | 描述 |
| Mascon模型系数 | 全局 | 5 882个参数(不在定轨阶段估计) |
| 重力场模型参数 | 全局 | 60阶,共3 717个参数,不估计0阶与1阶项(仅在定轨阶段估计) |
| 卫星初始运动状态改正参数 | 局部 | 每弧段(3 h)1组,每颗卫星每组6个参数(仅在定轨阶段估计) |
| 加速度计偏移参数 | 局部 | 估计三轴加速度计bias常量,每颗卫星每弧段估计1组(仅在定轨阶段估计) |
| 加速度计缩放参数 | 局部 | 每颗卫星每天估计1组,估计diagonal参数和non-diagonal参数,non-diagonal参数添加先验约束0.01(仅在定轨阶段估计) |
| 分段常加速度参数 | 局部 | 三轴方向常量参数,每颗卫星每15 min估计1组,单星参数先验方差3×10-9 m/s2,两星参数差值先验方差3×10-10 m/s2(仅在定轨阶段估计) |
| 积分常量参数 | 局部 | 每弧段估计1个参数(不在定轨阶段估计) |
| 观测数据 |
| 名称 | 采样间隔/s | 描述 |
| KOE1B | 30 | 卫星运动学定轨数据,仅包含卫星位置,版本为RL00 |
| ROE1B | 1 | 卫星简化动力学定轨数据,包含卫星的位置和速度及其方差,主要用作数值积分的卫星起始运动状态,版本为RL00 |
| KBR1B | 5 | 星间微波测距数据,包含星间距离(有偏)、星间距离变率和星间距离加速度,版本为RL00 |
| ACC1B | 1 | 卫星加速度计数据,包含卫星非保守力加速度在卫星科学坐标系三轴方向上的分量,版本为RL00 |
| SCA1B | 1 | 卫星姿态数据,包含从惯性系到卫星科学坐标系的转换四参数,版本为RL00 |
), ArticleFig(id=1322566940825076350, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=CN, label=表1, caption=
反演所采用的背景场模型、待估参数和观测数据
, figureFileSmall=null, figureFileBig=null, tableContent=
| 背景场模型 |
| 背景场 | 模型 | 描述 |
| 地球重力场 | EIGEN-6C4[19] | 截断至300阶 |
| 海洋潮汐 | FES2014b[20] | 截断至180阶,包含34个主潮汐和327个次潮汐分量,基于导纳理论内插次潮汐分量 |
| 固体潮汐 | IERS 2010[21] | 考虑至4阶项,同时顾及频率相关项和频率无关项,潮汐系统采用tide-free |
| N体引力 | 质量点模型 | 采用DE430星历,考虑太阳、月球、木星、土星、火星和金星,考虑地球J2项影响 |
| 固体极潮 | IERS 2010[21] | 仅考虑C21和S21项,平均极移采用线性模型,地球自转参数采用EOP14 |
| 海洋极潮 | Desai模型[22] | 截断至180阶,平均极移采用线性模型 |
| 大气潮汐 | AOD1B RL06[23] | 截断至180阶,包含12个主潮汐分量 |
| 海洋大气非潮汐变化 | AOD1B RL06[23] | 截断至180阶,节点之间采用线性内插 |
| 广义相对论效应 | IERS 2010[21] | / |
| 待估参数 |
| 待估参数 | 属性 | 描述 |
| Mascon模型系数 | 全局 | 5 882个参数(不在定轨阶段估计) |
| 重力场模型参数 | 全局 | 60阶,共3 717个参数,不估计0阶与1阶项(仅在定轨阶段估计) |
| 卫星初始运动状态改正参数 | 局部 | 每弧段(3 h)1组,每颗卫星每组6个参数(仅在定轨阶段估计) |
| 加速度计偏移参数 | 局部 | 估计三轴加速度计bias常量,每颗卫星每弧段估计1组(仅在定轨阶段估计) |
| 加速度计缩放参数 | 局部 | 每颗卫星每天估计1组,估计diagonal参数和non-diagonal参数,non-diagonal参数添加先验约束0.01(仅在定轨阶段估计) |
| 分段常加速度参数 | 局部 | 三轴方向常量参数,每颗卫星每15 min估计1组,单星参数先验方差3×10-9 m/s2,两星参数差值先验方差3×10-10 m/s2(仅在定轨阶段估计) |
| 积分常量参数 | 局部 | 每弧段估计1个参数(不在定轨阶段估计) |
| 观测数据 |
| 名称 | 采样间隔/s | 描述 |
| KOE1B | 30 | 卫星运动学定轨数据,仅包含卫星位置,版本为RL00 |
| ROE1B | 1 | 卫星简化动力学定轨数据,包含卫星的位置和速度及其方差,主要用作数值积分的卫星起始运动状态,版本为RL00 |
| KBR1B | 5 | 星间微波测距数据,包含星间距离(有偏)、星间距离变率和星间距离加速度,版本为RL00 |
| ACC1B | 1 | 卫星加速度计数据,包含卫星非保守力加速度在卫星科学坐标系三轴方向上的分量,版本为RL00 |
| SCA1B | 1 | 卫星姿态数据,包含从惯性系到卫星科学坐标系的转换四参数,版本为RL00 |
), ArticleFig(id=1322566940908962431, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322566928468656667, language=EN, label=Tab. 2, caption=
The correlation coefficients between different models in different basins
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| 流域 | 相关系数 |
| IEU&CSR | IEU&JPL | IEU&GSFC | CSR&JPL | CSR&GSFC | JPL&GSFC |
| 亚马孙河 | 0.997 | 0.998 | 0.997 | 0.999 | 0.999 | 0.999 |
| 尼罗河 | 0.932 | 0.968 | 0.942 | 0.978 | 0.948 | 0.967 |
| 勒拿河 | 0.937 | 0.930 | 0.924 | 0.980 | 0.959 | 0.980 |
| 湄公河 | 0.937 | 0.939 | 0.940 | 0.981 | 0.968 | 0.984 |
| 多瑙河 | 0.965 | 0.973 | 0.958 | 0.986 | 0.994 | 0.974 |
| 科罗拉多河 | 0.889 | 0.903 | 0.921 | 0.948 | 0.945 | 0.952 |
| 伊洛瓦底江 | 0.983 | 0.967 | 0.972 | 0.978 | 0.991 | 0.979 |
| 林波波河 | 0.875 | 0.928 | 0.902 | 0.955 | 0.905 | 0.909 |
| 弗雷泽河 | 0.944 | 0.972 | 0.970 | 0.943 | 0.939 | 0.990 |
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不同流域内各模型间相关系数
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| 流域 | 相关系数 |
| IEU&CSR | IEU&JPL | IEU&GSFC | CSR&JPL | CSR&GSFC | JPL&GSFC |
| 亚马孙河 | 0.997 | 0.998 | 0.997 | 0.999 | 0.999 | 0.999 |
| 尼罗河 | 0.932 | 0.968 | 0.942 | 0.978 | 0.948 | 0.967 |
| 勒拿河 | 0.937 | 0.930 | 0.924 | 0.980 | 0.959 | 0.980 |
| 湄公河 | 0.937 | 0.939 | 0.940 | 0.981 | 0.968 | 0.984 |
| 多瑙河 | 0.965 | 0.973 | 0.958 | 0.986 | 0.994 | 0.974 |
| 科罗拉多河 | 0.889 | 0.903 | 0.921 | 0.948 | 0.945 | 0.952 |
| 伊洛瓦底江 | 0.983 | 0.967 | 0.972 | 0.978 | 0.991 | 0.979 |
| 林波波河 | 0.875 | 0.928 | 0.902 | 0.955 | 0.905 | 0.909 |
| 弗雷泽河 | 0.944 | 0.972 | 0.970 | 0.943 | 0.939 | 0.990 |
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