A new model for estimating atmospheric weighted mean temperature from radiosonde and multi-mission GNSS radio occultation data
Available online 30 October 2025
In Global Navigation Satellite System (GNSS) meteorology, the atmospheric weighted mean temperature (Tm) is a critical intermediate parameter for converting zenith wet delay (ZWD) to precipitable water...
Shallow coseismic slip and downdip afterslip associated with the 2022 MW6.7 Menyuan (China) earthquake
Available online 30 October 2025
Investigating the spatial distribution of coseismic rupture, postseismic afterslip, and their interactions is essential for understanding the heterogeneous frictional characteristics of faults, and...
Spatiotemporal dynamics of groundwater storage inferred from MT-InSAR and hydraulic head data in Anyang–Puyang Plain
Available online 30 October 2025
Groundwater overexploitation in northern Henan Province has led to significant land subsidence and aquifer degradation. This methodologically driven study proposes a physically consistent framework...
Fault model and slip distribution of the 2025 MW6.0 Chiayi earthquake in Southern Taiwan, China, constrained by InSAR observations
Available online 30 October 2025
On January 20, 2025, an MW6.0 earthquake occurred in Chiayi County, southwestern Taiwan, China. In this study, we utilize Sentinel-1 data to investigate the coseismic ground displacement and fault slip...
Geodetic slip rate and seismogenic depth of unmapped active faults in Yogyakarta, Indonesia, inferred from dense Global Navigation Satellite System campaign observation
Available online 29 October 2025
Yogyakarta was struck by a devastating MW6.3 earthquake, which intensified awareness about the seismic hazards in the region. This study investigates the kinematic slip rate and seismogenic depth of...
A comparison of hydrological loading deformations from GRACE mascon and load models with reprocessed IGS station positions
Available online 27 October 2025
Global Navigation Satellite System (GNSS) observations are critical for establishing high-precision terrestrial reference frames (TRF), but the environmental loading effects, particularly hydrological...
Structural analysis of rock fracture networks for subsurface investigation purposes in Morocco
Available online 23 October 2025
In addition to being among the major tiggers behind frequent earthquakes, fractures can allow surface water to infiltrate the permeable rocks, entering both shallow and deep aquifers. Occasionally,...
Impact of flex power on inter- and intra- Differential Code Bias variation
Available online 21 October 2025
Differential Code Bias (DCB) is the time delays between two different GNSS signals, which is crucial for GNSS positioning. Previous studies have shown that it can be significantly affected by the flex...
Predicting BDS-3's short-term clock bias using the RIME-WNN model
Available online 17 October 2025
Aiming at the problems that the clock bias prediction model of the Wavelet Neural Network (WNN) is greatly affected by the selection of network parameters, and the Particle Swarm Optimization Wavelet...
Extraction and identification of transient deformation after the Ludian earthquake
Available online 15 October 2025
This study investigates the transient deformation signals associated with the Ludian M6.8 earthquake, which occurred on June 22, 2014, in southwestern China, using Global Navigation Satellite System...
Slow slip events detection algorithm based on an optimization-based signal decomposition framework: a case study in Cascadia zone
Available online 14 October 2025
Slow Slip Events (SSEs) are critical for understanding subduction zone tectonics and earthquake prediction; however their detection is challenged by low-magnitude-offsets and data gaps. To address these...
The 0S0 fundamental mode excited by Sumatra-Andaman earthquake: Parameters assessment using the maximum likelihood method
Available online 6 October 2025
This paper presents new estimations for all parameters (amplitude, frequency, quality factor, and initial phase) of the 0S0 Earth fundamental mode, which was triggered by the 2004 Sumatra-Andaman earthquake...
Sea level rise in the Baltic Sea: Data from Estonian coastal tide gauges over 30 years
Available online 4 October 2025
This study investigates the rate of sea level rise along the Estonian coastline of the Baltic Sea over the three decades (1993–2022) using tide gauge data and advanced analytical methods. Tide gauge...
Non-negative least squares variance component estimation of mixed additive and multiplicative random error model
September 2025
In the variance component estimation (VCE) of geodetic data, the problem of negative VCE is likely to occur. In the ordinary additive error model, there have been related studies to solve the problem...
A novel GNSS imaging method through velocity uncertainty based on Gaussian process regression and its evaluation
September 2025
Global Navigation Satellite System (GNSS) imaging method (GIM) has been successfully applied to global regions to investigate vertical land motion (VLM) of the Earth's surface. GNSS images derived from...
Refining GNSS-based water storage estimation: Improved hydrological signal extraction using principal component analysis
September 2025
The Global Navigation Satellite System (GNSS) is vital for monitoring terrestrial water storage (TWS). However, effectively extracting hydrological load deformation from GNSS observations poses a significant...
Slip rate and locking degree of Haiyuan fault zone, northeastern Qinghai-Xizang plateau, based on refined block model and GPS data
September 2025
As a major fault in the northeastern Qinghai-Xizang Plateau, the Haiyuan fault zone is important for understanding the regional deformation. Aiming at the differences in the slip rate and locking degree...
Excitation of long-period free oscillations by the 2011 Tohoku earthquake: Numerical experiments and influence of source parameters
September 2025
Long-period free oscillations provide robust information for the spatio-temporal characteristics of large earthquakes. In this study, we employ a normal-mode summation algorithm to generate three-component...
Seismotectonic analysis of the December 2023 MS6.2 Jishishan earthquake: Insights from high-resolution DEM, aftershock relocation, and fault modeling
September 2025
The December 18, 2023, MS6.2 Jishishan earthquake occurred along the northeastern margin of the Qinghai-Xizang Plateau within the Laji–Jishi Shan Fault Zone (LJSFZ), a complex thrust-dominated tectonic...
Source modeling of the 2023 Herat earthquake sequence determined from InSAR observations
September 2025
During 7th-15th October 2023, an earthquake sequence with four MW6.2–6.3 occurred in the Herat region, Afghanistan, causing damage to buildings, fire, and loss of life. The co-seismic deformation induced...
Low orbit regional enhanced navigation constellation for BDS3 design based on Bayesian optimization algorithm
September 2025
The application of Low Earth Orbit (LEO) satellite navigation can enhance geometric structure, increase observations and contribute to navigation and positioning. To improve the performance of the navigation...
InSAR time series analysis of natural and anthropogenic coastal plain subsidence: A case of Hangjiahu plain
September 2025
The early excessive groundwater exploitation caused extensive land subsidence in the Hangjiahu Plain (HJHP), threatening geological stability and infrastructure. Government restrictions on groundwater...
InSAR coseismic deformation and seismogenic structure of the 2023 MW6.9 Tajikistan earthquake
September 2025
An earthquake of magnitude 6.9 occurred in Tajikistan on February 23, 2023. Studying this earthquake is the key to understanding the seismogenic structure of this area. The slip distribution of the...
Real-time retrieval of high-precision ZTD maps using GNSS observation
September 2025
Zenith Tropospheric Delay (ZTD) is an important factor that restricts the high-precision positioning of global navigation satellite system (GNSS), and it is of great significance in establishing a real-time...
Empirical tropospheric zenith wet delay models with strong generalization capability based on a robust machine learning fusion algorithm
Available online 26 September 2025
Tropospheric zenith wet delay (ZWD) plays a vital role in the analysis of space geodetic observations. In recent years, machine learning methods have been increasingly applied to improve the accuracy...