Geoscientific Instrumentation, Methods and Data Systems
Geoscientific Instrumentation, Methods and Data Systems
GI
Articles | Volume 14, issue 2
Articles | Volume 14, issue 2
https://doi.org/10.5194/gi-14-423-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gi-14-423-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 2
Research article
 | 
03 Dec 2025
Research article |  | 03 Dec 2025

The multi scenarios applicability of GNSS differential positioning technology in the remeasurement of observatory azimuth in China

Yufei He, Xudong Zhao, Suqin Zhang, Qi Li, Fuxi Yang, Shaopeng He, Pengkun Guo, and Jinping Zhou

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Short summary
This study establishes Global Navigation Satellite System (GNSS)-based azimuth remeasurement scenarios for geomagnetic observatories. Five prioritized workflows address diverse field conditions. Validations at Hongshan, Quanzhou, and Yulin observatories confirm Scenario I (flat and clear line of sight) and Scenario II (alternative clear path available) feasibility. Preliminary error analysis informs a deployment priority sequence, providing scalable solutions for complex environments.
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Geomagnetic observatories, their data, and the application...