Numerical calculation and accuracy analysis of the highly oscillatory integral in the complete geodetic excitation solution of Earth's polar motion equation
Available online 9 January 2026
Variations in polar motion (PM) observed through space geodetic techniques imply comprehensive information on geophysical excitation. Traditional geodetic excitation series derived from PM observations...
Numerical simulation of mid-lower crustal flow model in Sichuan-Yunnan constrained by GNSS observations
Available online 8 January 2026
The Sichuan-Yunnan region, located at the southeastern margin of the Qinghai-Xizang Plateau, serves as a key channel for the southeastward extrusion of plateau material. The characteristics of crustal...
Coseismic slip distribution inversion by least squares: A Bayesian method for uncertainty-constrained regularization
Available online 8 January 2026
The study investigates the least squares coseismic slip distribution inversion problem combined with the Bayesian method for determining the regularization factor. In response to the significant time...
An exploratory satellite gravity approach for detecting the modern marine sedimentary processes in the Bohai Central Basin
Available online 7 January 2026
Satellite gravity has the capability to cover the entire globe, enabling real-time, high-precision, and periodic monitoring of gravity field changes. We introduce a novel geodesy method to monitor modern...
Accuracy analysis of topography estimation from geoid heights and vertical gravity and vertical gravity gradient
Available online 2 January 2026
This study investigates the accuracy requirements for predicting seafloor topography using anomalies in geoid height (GH), vertical gravity (VG), and vertical gravity gradient (VGG), based on their...
Modeling of the vertical gravity gradient in the territory of the Republic of Kazakhstan: Methods, Comparison and Evaluation of Accuracy
Available online 29 December 2025
This study investigates the modeling of the vertical gravity gradient (VGG) in the Republic of Kazakhstan using three non-instrumental methods: global geopotential models (GGMs), a precomputed VGG grid...
The impact of thermal expansion on nonlinear vertical variations of GNSS reference stations in Chinese mainland
Available online 23 December 2025
The thermoelastic deformation of Global Navigation Satellite System (GNSS) monuments and foundations significantly contributes to the vertical nonlinear variations observed in the GNSS coordinate time...
Implication from the 2023 MW6.0 Jishishan earthquake: complex fault structure beneath the Jishi Shan, northeastern Qinghai-Xizang Plateau
Available online 20 December 2025
Although the Lajishan-Jishishan fault zone is considered as one of the most tectonically active orogenic belts along the northeastern margin of the Qinghai-Xizang Plateau, its present-day slip behavior...
Research on ultra-short-term prediction of polar motion using least square and spatial attention mechanism model
Available online 11 December 2025
This study proposes a novel hybrid model integrating least squares (LS) with a spatial attention mechanism (SAM) for 1–10 days polar motion prediction. The LS method primarily predicts principal components,...
Spatiotemporal variation analysis of groundwater storage in the southeastern mountainous region of China based on GRACE data
Available online 3 December 2025
The southeastern mountainous (SEM) region of China has experienced significant fluctuations in groundwater levels since the early 21st century. Monitoring groundwater storage (GWS) dynamics and analyzing...
Structural analysis of rock fracture networks for subsurface investigation purposes in Morocco
November 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,...
Improved sparrow search algorithm for inversion of geometric parameters of earthquake source faults
November 2025
With the continuous improvement of the accuracy of geodetic deformation data, the inversion of seismic source parameters puts forward a higher demand for nonlinear inversion algorithms. In this research,...
The complementary distribution of coseismic and slow-moving landslides along the transition between the Qinghai-Xizang plateau and Sichuan basin
November 2025
Landslides accompanying earthquakes are essential in landscape evolution along active fault zones. However, most studies focus on the rapid, catastrophic coseismic landslides with surface scars; the...
Evaluating global precipitable water vapor products from four public reanalysis using radiosonde data
November 2025
Precipitable Water Vapor (PWV) is a crucial parameter for short-term climate warnings and long-term climate monitoring. Due to their seamless spatiotemporal coverage, atmospheric reanalysis products...
Methodology for optimizing heights in the Amsterdam system based on regional and global geoid/quasi-geoid models
November 2025
The article presents a methodology for transitioning to the Amsterdam height system based on utilizing global and regional geoid/quasi-geoid models. The study was conducted for the Polish-Ukrainian...
Evaluating Euler pole parameters for the north American terrestrial reference frame of 2022
November 2025
Euler Pole Parameters (EPPs) were estimated for the new plate-fixed North American Terrestrial Reference Frame of 2022 (NATRF2022) based on the spherical model of Earth using different sets of continuously...
Investigating intraplate deformation in the West African region using GPS-based velocity models
November 2025
Intraplate deformation, influenced by tectonic, geological, and environmental factors, presents significant challenges for geodesy and geodynamics. This study focuses on quantifying intraplate deformation...
Strain rate of Boso slow slip events related to seismic activity after 2011 using GNSS data
November 2025
The March 11, 2011, MW9.0 Tohoku-Oki earthquake, in Japan, caused rapid strain release near the epicenter, while the Boso Peninsula, located farther away, experienced stress redistribution, leading...
On-orbit thermal environment analysis of the optical bench of a new generation of gravity measurement satellites
November 2025
The new generation of gravity measurement satellites will use high-precision inter-satellite laser interferometry technology to measure the gravity field. The heat flow outside the satellite's orbit...
Static stress implications for Kīlauea volcano activity after the 2018 Hawai'i earthquake
November 2025
The MW6.9 thrust-faulting earthquake in Hawai'i on May 4, 2018, occurred near the Kīlauea shield volcano. We use 57-day-long continuous Global Positioning System (cGPS) data and 6-day-long semi-continuous...
An improved and robust method of estimating ice sheet elevation changes with ICESat-2 altimetry data
November 2025
Elevation change monitoring of the Antarctic ice sheet has been a key issue in global change research. Satellite altimetry has been proven to be effective in detecting ice sheet variations. With the...
Analysis of the GNSS deformation of the 2025 Xizang Dingri M6.8 earthquake
Available online 22 November 2025
The study utilized GNSS observation data from 1999 to 2024 to investigate the crustal deformation characteristics near the epicenter of the Dingri earthquake. The results show that the GNSS horizontal...
The 28 March 2025 MW7.7 Myanmar earthquake revealed by InSAR and POT observations: A supershear event with no shallow slip deficit
Available online 21 November 2025
On 28 March 2025, a shallow devastating strike-slip earthquake with a moment magnitude (MW) of 7.7 struck Mandalay, the second-largest city in Myanmar, marking the most powerful seismic event in this...
Quality assessment of global gravity field models in the Antarctic region based on airborne gravity data
Available online 17 November 2025
As the largest ice sheet storage area in the world, Antarctica's gravity field characteristics are key data for studying ice sheet mass balance, sea level changes, and polar resource exploration. However,...
Vertical gravity gradient modeling and its influence on gravity datum transfer
Available online 13 November 2025
In the past, the free-air gradient −308.6 × 10−8 s−2 was used as the vertical gravity gradient of the measuring point in gravity data processing, which resulted in inaccurate instrument height corrections....
