Article(id=1322567084891030195, tenantId=1146029695717560320, journalId=1281212831689347082, issueId=1322567020940481144, articleNumber=null, orderNo=null, doi=10.14075/j.jgg.2025.07.250, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1752508800000, receivedDateStr=2025-07-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793254165146, onlineDateStr=2026-10-29, pubDate=1776182400000, pubDateStr=2026-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793254165146, onlineIssueDateStr=2026-10-29, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793254165146, creator=13701087609, updateTime=1793254165146, updator=13701087609, issue=Issue{id=1322567020940481144, tenantId=1146029695717560320, journalId=1281212831689347082, year='2026', volume='46', issue='4', pageStart='392', pageEnd='521', issueExtLink='null', onlineDate='null', pubDate='1776182400000', pubDateStr='2026-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793254149899, creator='13701087609', updateTime=1793254149899, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=473, endPage=480, ext={EN=ArticleExt(id=1322567085075579572, articleId=1322567084891030195, tenantId=1146029695717560320, journalId=1281212831689347082, language=EN, title=A Regional ZTD Prediction Model Based on GPT3 and Improved Attention LSTM-MHA, columnId=null, journalTitle=Journal of Geodesy and Geodynamics, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Aiming at the problems of low accuracy of empirical models and meteorological parameter model accuracy limited by meteorological parameters in commonly used ZTD prediction models, we propose a regional ZTD prediction model based on improved multi-head attention mechanism combined with long short-term memory network (LSTM-MHA). The model is constructed using data from the third-generation global pressure and temperature model (GPT3), along with station latitude, longitude, elevation, day of year, and hour of day. Using ZTD data from 26 continuously operating reference stations (CORS) in Europe in 2023 as reference values, comparative experiments were conducted with the GPT3 model, LSTM model, and CNN model. The results show that the LSTM-MHA model achieves a mean bias close to 0, with root mean square error and mean absolute error of 13.43 mm and 12.4 mm, respectively. The accuracy of LSTM-MHA model has been improved by 60.8%, 55.2%, and 53.3% compared to the GPT3, CNN, and LSTM models. Evaluation of the LSTM-MHA model performance under different distances and prediction lengths reveals that the proposed method performs stably in both sparse station networks and long-term forecasting scenarios, demonstrating its suitability for regional multi-station prediction tasks.
, authors=Chenglin CAI
1, Jie ZHAO
1, Wenhui GUAN
2, *, Yi QIN
3, authorsList=Chenglin CAI, Jie ZHAO, Wenhui GUAN, Yi QIN, authorCompany=null, correspAuthors=Wenhui GUAN, 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=1322567088502325957, articleId=1322567084891030195, tenantId=1146029695717560320, journalId=1281212831689347082, language=CN, title=基于GPT3和改进注意力LSTM-MHA的区域ZTD预测模型, columnId=1281909276545356011, journalTitle=大地测量与地球动力学, columnName=大地测量学, runingTitle=null, highlight=null, articleAbstract=
针对常用的ZTD预测模型中经验模型精度较低, 气象参数模型精度受限于气象参数的问题, 提出一种结合长短期记忆网络的改进多头注意力机制(LSTM-MHA)的区域ZTD预测模型, 基于第三代全球气压和气温模型(GPT3)数据与站点经纬度、高程、年积日、小时进行建模。选取欧洲地区26个连续运行参考站(CORS)2023年的ZTD数据作为参考值, 与GPT3模型、LSTM模型、CNN模型进行对比实验。结果显示, LSTM-MHA模型结果平均偏差接近于0, 均方根误差和平均绝对误差分别为13.43 mm和12.4 mm, 精度相比于GPT3、CNN、LSTM模型分别提高60.8%、55.2%、53.3%。通过评估LSTM-MHA模型在不同距离和不同预测时长下的性能发现, 所提方法在稀疏站点群和长时预测中均表现稳定, 适合区域多站点预测任务。
, authors=蔡成林
1, 赵婕
1, 关文绘
2, *, 秦懿
3, authorsList=蔡成林, 赵婕, 关文绘, 秦懿, authorCompany=null, correspAuthors=关文绘, authorNote=
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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=TQGzNgGZmhZXidv0tM/xtw==, magXml=q+jwhs/nEZi8jF7i10myAA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=Er08dBIfuDttDU7yPfjHiQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=zTWwedHvybA1Po7xocyXAg==, mapNumber=null, fund=null)}, authors=[Author(id=1322567088955310800, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=chengcailin@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322567089039196882, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, authorId=1322567088955310800, language=EN, stringName=Chenglin CAI, firstName=Chenglin, middleName=null, lastName=CAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1, address=1 湘潭大学自动化与电子信息学院, 湘潭, 411105, bio={"content":"
蔡成林, 博士, 教授, 博士生导师, 主要从事卫星导航与无线通信研究, E-mail: chengcailin@126.com
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蔡成林, 博士, 教授, 博士生导师, 主要从事卫星导航与无线通信研究, E-mail: chengcailin@126.com
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Structure of the LSTM-MHA algorithm, figureFileSmall=ZK72jqAG9lmj/LcNU15IhQ==, figureFileBig=Er08dBIfuDttDU7yPfjHiQ==, tableContent=null), ArticleFig(id=1322567090695946990, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图1, caption=
LSTM-MHA算法结构, figureFileSmall=ZK72jqAG9lmj/LcNU15IhQ==, figureFileBig=Er08dBIfuDttDU7yPfjHiQ==, tableContent=null), ArticleFig(id=1322567090876302063, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 2, caption=
Distribution of experimental stations, figureFileSmall=Sx6XM4jIpLqQQ6uxEEjpjQ==, figureFileBig=ji6d/VpYL5AybzyOGMtGnA==, tableContent=null), ArticleFig(id=1322567090939216624, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图2, caption=
实验站点分布, figureFileSmall=Sx6XM4jIpLqQQ6uxEEjpjQ==, figureFileBig=ji6d/VpYL5AybzyOGMtGnA==, tableContent=null), ArticleFig(id=1322567091002131185, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 3, caption=
Workflow of ZTD prediction, figureFileSmall=lm6gBLuSfJqlo4UUtWgyHA==, figureFileBig=lYMyNJux2IhGuuKabNnnbA==, tableContent=null), ArticleFig(id=1322567091056657138, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图3, caption=
ZTD预测流程, figureFileSmall=lm6gBLuSfJqlo4UUtWgyHA==, figureFileBig=lYMyNJux2IhGuuKabNnnbA==, tableContent=null), ArticleFig(id=1322567091106988787, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 4, caption=
Comparison of ZTD sequences predicted by different models, figureFileSmall=AcyZNws/XbuLkO/dTOAAjw==, figureFileBig=nCLeWHVlxZ3hXJ1jCVUZWQ==, tableContent=null), ArticleFig(id=1322567091165709044, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图4, caption=
不同模型预测的ZTD序列对比, figureFileSmall=AcyZNws/XbuLkO/dTOAAjw==, figureFileBig=nCLeWHVlxZ3hXJ1jCVUZWQ==, tableContent=null), ArticleFig(id=1322567092843430645, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 5, caption=
Error distribution of GPT3, LSTM, CNN, and LSTM-MHA models, figureFileSmall=VVeigbQsNRZsCg672Rnn2g==, figureFileBig=4i4teHWePDTOta3ip3MQXw==, tableContent=null), ArticleFig(id=1322567092923122422, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图5, caption=
GPT3、LSTM、CNN、LSTM-MHA模型误差分布, figureFileSmall=VVeigbQsNRZsCg672Rnn2g==, figureFileBig=4i4teHWePDTOta3ip3MQXw==, tableContent=null), ArticleFig(id=1322567092998619895, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 6, caption=
Distribution of CPAR site and training sites under different distance ranges, figureFileSmall=1rsA/9VU9DdR8cPNnKCgrw==, figureFileBig=seZ7rhQzJhB+jU8roYEc1g==, tableContent=null), ArticleFig(id=1322567093074117368, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图6, caption=
CPAR站点与不同距离范围的训练站点分布, figureFileSmall=1rsA/9VU9DdR8cPNnKCgrw==, figureFileBig=seZ7rhQzJhB+jU8roYEc1g==, tableContent=null), ArticleFig(id=1322567093137031929, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 7, caption=
Average RMSE for different prediction lengths, figureFileSmall=e8N/dkeO+YkHYZUDRfA0Iw==, figureFileBig=huvC+cLLQqXZylzAt2occg==, tableContent=null), ArticleFig(id=1322567093216723706, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图7, caption=
不同预测时长的平均RMSE, figureFileSmall=e8N/dkeO+YkHYZUDRfA0Iw==, figureFileBig=huvC+cLLQqXZylzAt2occg==, tableContent=null), ArticleFig(id=1322567093288026875, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Fig. 8, caption=
Pearson correlation analysis and significance test between the precision of LSTM-MHA model and latitude, longitude, elevation, and distance to sea, figureFileSmall=bX0JYjBDV+4veBrEKAeRFQ==, figureFileBig=Tw7OZKfMX06WMZTDcEizFQ==, tableContent=null), ArticleFig(id=1322567093363524348, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=图8, caption=
LSTM-MHA模型精度与纬度、经度、高程、距海距离的皮尔逊相关分析和显著性检验, figureFileSmall=bX0JYjBDV+4veBrEKAeRFQ==, figureFileBig=Tw7OZKfMX06WMZTDcEizFQ==, tableContent=null), ArticleFig(id=1322567093455799037, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Tab. 1, caption=
Comparison of prediction errors of different models
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | bias/mm | | RMSE/mm | | MAE/mm |
| 平均 | 最大 | 最小 | 平均 | 最大 | 最小 | 平均 | 最大 | 最小 |
| GPT3 | -2.17 | 6.60 | -12.30 | | 34.29 | 39.60 | 28.00 | | 27.44 | 31.90 | 22.00 |
| CNN | 1.74 | 13.97 | -4.30 | 29.95 | 40.39 | 22.69 | 27.71 | 38.12 | 20.74 |
| LSTM | -0.14 | 6.22 | -5.16 | 28.78 | 33.65 | 22.57 | 26.42 | 30.98 | 20.64 |
| LSTM-MHA | -0.12 | 6.41 | -5.34 | 13.43 | 21.25 | 8.66 | 12.40 | 19.72 | 7.26 |
), ArticleFig(id=1322567093535490814, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=表1, caption=
不同模型预测误差对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | bias/mm | | RMSE/mm | | MAE/mm |
| 平均 | 最大 | 最小 | 平均 | 最大 | 最小 | 平均 | 最大 | 最小 |
| GPT3 | -2.17 | 6.60 | -12.30 | | 34.29 | 39.60 | 28.00 | | 27.44 | 31.90 | 22.00 |
| CNN | 1.74 | 13.97 | -4.30 | 29.95 | 40.39 | 22.69 | 27.71 | 38.12 | 20.74 |
| LSTM | -0.14 | 6.22 | -5.16 | 28.78 | 33.65 | 22.57 | 26.42 | 30.98 | 20.64 |
| LSTM-MHA | -0.12 | 6.41 | -5.34 | 13.43 | 21.25 | 8.66 | 12.40 | 19.72 | 7.26 |
), ArticleFig(id=1322567093619376895, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=EN, label=Tab. 2, caption=
Comparison of prediction errors of CPAR site under different distances
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距离 | bias/mm | RMSE/mm | MAE/mm |
| 0~200 km | 3.48 | 8.94 | 7.89 |
| 200~300 km | 1.99 | 14.83 | 12.89 |
| 300~400 km | 1.11 | 21.34 | 18.95 |
| 400~500 km | 1.31 | 23.62 | 21.20 |
| 500~600 km | 1.01 | 24.22 | 21.62 |
), ArticleFig(id=1322567093690680064, tenantId=1146029695717560320, journalId=1281212831689347082, articleId=1322567084891030195, language=CN, label=表2, caption=
在不同距离下CPAR站点预测误差对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 距离 | bias/mm | RMSE/mm | MAE/mm |
| 0~200 km | 3.48 | 8.94 | 7.89 |
| 200~300 km | 1.99 | 14.83 | 12.89 |
| 300~400 km | 1.11 | 21.34 | 18.95 |
| 400~500 km | 1.31 | 23.62 | 21.20 |
| 500~600 km | 1.01 | 24.22 | 21.62 |
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