{"title":"Hydrological Loading in GNSS Vertical Coordinate Time Series on the Island of Haiti","authors":"Renaldo Sauveur, Sajad Tabibi, Olivier Francis","doi":"10.1007/s00024-024-03606-w","DOIUrl":null,"url":null,"abstract":"<div><p>Nowadays, studies investigating variations in Total Water Storage (TWS) have gained significant recognition through the analysis of the Global Navigation Satellite System (GNSS) vertical coordinate time series. This study focuses on the island of Haiti. The vertical loading displacements caused by TWS are calculated using the Global Land Data Assimilation (GLDAS) hydrological data model. A comparison between the annual signals of the hydrological model and GNSS data from 32 stations reveals the presence of the TWS signal in the GNSS time series. Despite the island of Haiti exhibiting a relatively small GNSS signal, the correction for hydrological effects computed with GLDAS results in a reduction of the Root-Mean-Square (RMS) scatter of the GNSS time series vertical displacement for 62.5% of the stations. The station with the most notable improvement shows a significant 50% reduction in RMS, along with a correlation coefficient of 0.88 between the GNSS and hydrological displacements.</p></div>","PeriodicalId":21078,"journal":{"name":"pure and applied geophysics","volume":"181 12","pages":"3591 - 3604"},"PeriodicalIF":1.9000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"pure and applied geophysics","FirstCategoryId":"89","ListUrlMain":"https://link.springer.com/article/10.1007/s00024-024-03606-w","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
Nowadays, studies investigating variations in Total Water Storage (TWS) have gained significant recognition through the analysis of the Global Navigation Satellite System (GNSS) vertical coordinate time series. This study focuses on the island of Haiti. The vertical loading displacements caused by TWS are calculated using the Global Land Data Assimilation (GLDAS) hydrological data model. A comparison between the annual signals of the hydrological model and GNSS data from 32 stations reveals the presence of the TWS signal in the GNSS time series. Despite the island of Haiti exhibiting a relatively small GNSS signal, the correction for hydrological effects computed with GLDAS results in a reduction of the Root-Mean-Square (RMS) scatter of the GNSS time series vertical displacement for 62.5% of the stations. The station with the most notable improvement shows a significant 50% reduction in RMS, along with a correlation coefficient of 0.88 between the GNSS and hydrological displacements.
期刊介绍：
pure and applied geophysics (pageoph), a continuation of the journal "Geofisica pura e applicata", publishes original scientific contributions in the fields of solid Earth, atmospheric and oceanic sciences. Regular and special issues feature thought-provoking reports on active areas of current research and state-of-the-art surveys.
Long running journal, founded in 1939 as Geofisica pura e applicata
Publishes peer-reviewed original scientific contributions and state-of-the-art surveys in solid earth and atmospheric sciences
Features thought-provoking reports on active areas of current research and is a major source for publications on tsunami research
Coverage extends to research topics in oceanic sciences
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