Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 99261 10.2205/2025ES001051 pbvbzc ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Adjustment of the Local Gravimetric Network by Several Software Packages Using the Kazan Calibration Line as an Example Adjustment of the Local Gravimetric Network by Several Software Packages Using the Kazan Calibration Line as an Example https://orcid.org/0009-0002-9868-8087 Кемербаев Нурган Kemerbayev Nurgan

кандидат технических наук;

candidate of technical sciences;

 https://orcid.org/0009-0005-3668-3258 Жумаканов Аян Zhumakanov Ayan https://orcid.org/0009-0009-0696-3469 Шкиева Марал Shkiyeva Maral https://orcid.org/0000-0003-2026-1550 Харисов Айрат Kharisov Ayrat https://orcid.org/0009-0009-8253-7349 Ислямова Анель Islyamova Anel' https://orcid.org/0000-0002-2938-0444 Сермягин Роман Sermiagin Roman roman.sermiagin@gmail.com https://orcid.org/0009-0001-6920-5675 Жанакулова Катима Zhanakulova Katima https://orcid.org/0009-0009-6020-4025 Кален Ералы Kalen Eraly ТОО "GeoID" Казахстан GeoID LLP Kazakhstan ТОО "GeoID" Казахстан GeoID LLP Kazakhstan ТОО "GeoID" Казахстан GeoID LLP Kazakhstan Казанский (Приволжский) федеральный университет Kazan (Volga) Federal University РГП Национальный центр геодезии и пространственной информации Казахстан RSE National Centre of Geodesy and Spatial Information Kazakhstan РГП Национальный центр геодезии и пространственной информации Астана Казахстан RSE National Centre of Geodesy and Spatial Information Astana Kazakhstan Satbayev University Казахстан Satbayev University Kazakhstan ТОО Геокен Казахстан Geoken LLC Kazakhstan 22 09 2025 22 09 2025 25 5 ES5006 27 05 2025 30 07 2025 https://rjes.ru/en/nauka/article/99261/view

Processing and adjustment of gravity measurements represent an essential scientific and practical challenge in geophysics and geodesy, necessitating efficient and reliable software solutions. In this article, we review five modern open-source software packages for processing gravity measurements, namely GSAdjust, GRAVS2, gTools, GravRelAdj, and GRAVITAS. Additionally, adjustments were performed using a current Python library (statsmodels), which demonstrated good results, providing an objective comparison with the presented software products. The work is focused on optimizing the processing of data from relative and absolute gravity meters, including network adjustment with one fixed point and multiple fixed points. The comparison was conducted using high-precision gravity measurements obtained from the A10 absolute gravity meter and CG-5 relative gravity meters at the Kazan gravity calibration line. The obtained results indicate that GSAdjust and GRAVS2 offer the most promising balance between usability and reliability. GSAdjust provides a user-friendly graphical interface and supports a range of analysis tasks, while GRAVS2 offers speed and robustness, albeit with a command-line interface. A modernization of the GRAVS2 software product for automated processing of large volumes of data is proposed. The study also emphasizes the importance of synchronizing absolute and relative measurements, incorporating nonlinear vertical gradients, and implementing robust adjustment methods to enhance the accuracy and reliability of gravity network solutions.

Processing and adjustment of gravity measurements represent an essential scientific and practical challenge in geophysics and geodesy, necessitating efficient and reliable software solutions. In this article, we review five modern open-source software packages for processing gravity measurements, namely GSAdjust, GRAVS2, gTools, GravRelAdj, and GRAVITAS. Additionally, adjustments were performed using a current Python library (statsmodels), which demonstrated good results, providing an objective comparison with the presented software products. The work is focused on optimizing the processing of data from relative and absolute gravity meters, including network adjustment with one fixed point and multiple fixed points. The comparison was conducted using high-precision gravity measurements obtained from the A10 absolute gravity meter and CG-5 relative gravity meters at the Kazan gravity calibration line. The obtained results indicate that GSAdjust and GRAVS2 offer the most promising balance between usability and reliability. GSAdjust provides a user-friendly graphical interface and supports a range of analysis tasks, while GRAVS2 offers speed and robustness, albeit with a command-line interface. A modernization of the GRAVS2 software product for automated processing of large volumes of data is proposed. The study also emphasizes the importance of synchronizing absolute and relative measurements, incorporating nonlinear vertical gradients, and implementing robust adjustment methods to enhance the accuracy and reliability of gravity network solutions.

 gravity network gravity meter adjustment software Python gravity network gravity meter adjustment software Python This work was supported by the grant funding for scientific project “Development of a geoid model of the Republic of Kazakhstan as the basis of a unified state coordinate system and heights” (BR21882366). This work was supported by the grant funding for scientific project “Development of a geoid model of the Republic of Kazakhstan as the basis of a unified state coordinate system and heights” (BR21882366).

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