Numerical simulation for large baseline interferometric imaging altimeter
January 2025
Sea topography information holds significant importance in oceanic research and the climate change detection. Radar imaging altimetry has emerged as the leading approach for global ocean observation,...
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Galileo multi-day precise orbit determination using L-band and SLR data
January 2025
The continuously available satellites of European Galileo currently reach more than 25. To explore the rationality and reliability of the L-band and satellite laser ranging (SLR) data processing strategies,...
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Improving atmospheric pressure vertical correction model using Gaussian function
January 2025
The Zenith Hydrostatic Delay (ZHD) is essential for high-precision Global Navigation Satellite System (GNSS) and Very Long Baseline Interferometry (VLBI) data processing. Accurate estimation of ZHD...
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Detection and interpretation of the time-varying seasonal signals in China with multi-geodetic measurements
January 2025
The time-varying periodic variations in Global Navigation Satellite System (GNSS) stations affect the reliable time series analysis and appropriate geophysical interpretation. In this study, we apply...
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The dynamic effects of solar eclipses of October 25, 2022, and October 14, 2023, on GPS-derived total electron content
January 2025
This study analyzes total electron content (TEC) variations during two solar eclipse events that occurred on October 25, 2022, and October 14, 2023. The solar eclipse of October 25, 2022, was a partial...
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Evaluating the accuracy of earth rotation parameters based on the BDS observations
January 2025
The BeiDou satellite system (BDS) has progressed with the full operationalization of the second-generation regional system (BDS-2) and the third-generation global system (BDS-3). This technology plays...
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Strain accumulation in the Mentawai Forearc Sliver, Indonesia, inferred from continuous GNSS-derived strain rate
January 2025
The Mentawai Forearc Sliver (MFS) is characterized by oblique deformation formed as slip partitioned between normal and parallel trench plate convergence. The surge of great earthquakes from 2004 to...
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Factors influencing the effectiveness of SM-VCE method in solving 3D surface deformation
January 2025
The recovery of coseismic 3-dimensional (3D) surface deformation field plays a crucial role in studying seismic source characteristics and earthquake hazards. As of now, there are two main types of...
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Statistical analysis of regional STEC gradient trends for midlatitude ionosphere
January 2025
In this study, the gradients of Total Electron Content (TEC) for a midlatitude region are estimated and grouped with respect to the distance between neighboring stations, time periods within a day,...
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On the ionospheric response in the Taiwan region to Typhoon Meranti in September 2016
January 2025
Previous studies have revealed that typhoons can affect the ionosphere. This paper uses GNSS observations provided by GNSS tracking stations of Taiwan region, ERA5 gravity wave dissipation products,...
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Constructing seasonal records of Ross Ice Shelf elevation changes using ICESat altimetry data
Available online 11 January 2025
Ice shelves are important passageways for ice sheets flowing into the ocean. Through iceberg calving and basal melting, ice shelves exert considerable influence on the mass balance of the Antarctic...
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Performance of invariants of gravity gradient tensor in matching navigation: A case study in South China Sea
Available online 13 December 2024
Choosing appropriate background field data is crucial for gravity field matching navigation. Current research mainly uses gravity anomaly data or gravity gradient data as background fields. However,...
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Performance of GNSS positioning in PPP mode using MADOCA precise products
November 2024
The Global Navigation Satellite System (GNSS) is widely utilized for accurate positioning. One commonly applied method to obtain precise coordinate estimates is by implementing the relative positioning...
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Improved artificial bee colony algorithm for pressure source parameter inversion of Sakurajima volcano from InSAR data
November 2024
A novel artificial bee colony algorithm was introduced for the eruption event of the Sakurajima volcano on August 9, 2020, to invert the magma source characteristics below the volcano based on the point...
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Exploring the topographical pattern beneath the water surface: Global bathymetric volume-area-height curves (BVAH) of inland surface water bodies
November 2024
Global inland surface water bodies such as lakes and reservoirs, important components of the hydrosphere and ecosphere, are increasingly affected by climate change. Generating bathymetric volume-area-height...
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Singular spectrum analysis for the time-variable seasonal signals from GPS in Yunnan Province
November 2024
Studying the seasonal deformation in GPS time series is important to interpreting geophysical contributors and identifying unmodeled and mismodeled seasonal signals. Traditional seasonal signal extraction...
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The earth's rotation-dominated seismicity preceding the 2023 MW7.8 Gaziantep, Türkiye, earthquake
November 2024
For earthquakes (M ≥ 4.0) occurring along and around the East Anatolian fault zone and the Dead Sea fault zone within ten years immediately before the MW7.8 Gaziantep earthquake, Türkiye, of February...
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The present-day kinematics of the Tianshan orogenic belt constrained by GPS velocities
November 2024
Since the late Cenozoic, the reactivated Tianshan orogenic belt has accommodated crustal shortening exceeding 200 km, primarily due to the far-field effects of the India-Eurasia plate collision. However,...
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A data-adaptive network design for the regional gravity field modelling using spherical radial basis functions
November 2024
A high-precision regional gravity field model is significant in various geodesy applications. In the field of modelling regional gravity fields, the spherical radial basis functions (SRBFs) approach...
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Effects of errors-in-variables on the internal and external reliability measures
November 2024
The reliability theory has been an important element of the classical geodetic adjustment theory and methods in the linear Gauss-Markov model. Although errors-in-variables (EIV) models have been intensively...
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Possible effects of selecting different station distributions in the optimal sequence estimation method
November 2024
Since the inception of the optimal sequence estimation (OSE) method, various research teams have substantiated its efficacy as the optimal stacking technique for handling array data, leading to its...
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Comparative analysis of recent hydrological models and an attempt to generate new combined products for monitoring terrestrial water storage change
November 2024
Hydrological models are crucial for characterizing large-scale water quantity variations and correcting GNSS reference station vertical displacements. We evaluated the robustness of multiple models,...
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Numerical simulation of seismic stress evolution in the Lajishan Fault zone on the northeastern margin of the Qinghai-Xizang Plateau
Available online 22 October 2024
To analyze the triggering relationship of historical earthquakes to the 2023 Jishishan earthquake and estimate the seismic risk in the adjacent region after the earthquake, we calculate the evolution...
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Dynamic changes of gravity field before the Luding MS6.8 earthquake and its crustal material migration characteristics
Available online 22 October 2024
On September 5, 2022, an earthquake of magnitude MS6.8 occurred in Luding County, Sichuan Province. This earthquake occurred at the key part of the southeast-clockwise extrusion of material on the eastern...
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Dynamically and economically updating the National Elevation Datum with the assistance of InSAR: A case study in North China Plain
Available online 18 October 2024
Land subsidence significantly impacts the accuracy of the National Elevation Datum in China. In order to solve this issue, a dynamic and economical way was proposed to update the National Elevation...
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