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ISSN: 1674-9847
CN: 42-1806/P
e-ISSN: 2589-0573

Comparative assessment of NIF and PCAIM for inverting equivalent fault slip in far-field scenarios

The study utilized GPS deformation time series, network inversion filter (NIF), and principal component analysis based inversion method (PCAIM) to invert for postseismic equivalent fault slip, obtaining...

Fault geometry and slip distribution of the 2025 MW5.8 Xinjiang Aheqi earthquake revealed by InSAR observations

On December 4, 2025, an MW5.8 earthquake struck Aheqi County, located in the southern Tian Shan, approximately 24 km from the epicenter of the 2024 MW7.0 Wushi earthquake. This proximity has prompted...

PPP-based UAV modeling using Galileo HAS orbit/clock products and RTS smoother

Unmanned aerial vehicle (UAV) remote sensing and mapping using real-time kinematic (RTK) require reference-station corrections and suffer from accuracy degradation over long baselines. To address these...

Establishment of the quasi-geoid model in areas of complex topography based on the Molodensky theory

Estimating the Molodensky first-order term by terrain correction can significantly accelerate gravity quasi-geoid modelling. However, the assumption of a linear relationship between free-air gravity...

Wavelet analysis of nighttime excess ionospheric TEC during a geomagnetic storm over Indian low latitudes

Understanding nighttime ionospheric variability is essential for reliable ionospheric modelling for improved GNSS performance over low latitudes. In this study, we examine the mature phase of the March...

Hybrid singular spectrum analysis and LSTM modeling for daily precipitation forecasting

To address the limitations of traditional univariate time series methods in achieving accurate daily precipitation forecasts, this contribution proposes a hybrid predictive model that integrates singular...

The multi-fault rupture and strain partitioning revealed by the coseismic surface deformation of the 2022 MS6.9 Menyuan earthquake

This study integrated centimeter-level unmanned aerial vehicle (UAV) data, meter- to sub-meter-resolution Gaofen (GF) satellite imagery, and field investigations to map the coseismic surface ruptures...

Quasi-geoid modelling using a fixed GBVP solution based on Brovar series in the Colorado experiment area

The solutions contributed to the Colorado 1 cm Geoid Experiment (CE) represent the state-of-the-art in precise high-resolution geoid and quasi-geoid modeling. They can be compared with other solutions,...

Coseismic deformation and hierarchical rupture processes of the 2024 Wushi earthquake revealed by Sentinel-1 InSAR and gradient techniques

On January 23, 2024, an MW7.0 earthquake struck Wushi County, Xinjiang, China, near the boundary between the Tianshan Orogen and the Tarim Basin. To resolve the source geometry and surface rupture features,...

Spatiotemporal features of terrestrial water storage variation and hydrological drought in southeastern Qinghai-Xizang Plateau derived from joint inversion

The Qinghai-Xizang Plateau (QXP), a critical freshwater reserve for Asia, exhibits complex hydrology in its southeastern edge due to intense precipitation and active tectonics. To overcome the limitations...

Unifying the vertical datums for Chinese mainland, Hong Kong and Taiwan of China based on refined gravity field models

Achieving centimeter-level or higher-precision vertical datum unification is pivotal for addressing both scientific and societal needs. This study presents a preliminary vertical datums unification...

Source parameters and seismogenic tectonics of the 2026 MS 5.5 Diebu earthquake sequence

The 2026 Diebu MS5.5 earthquake occurred on the eastern divergent segment of the Eastern Kunlun Fault (EKF), with ambiguous seismogenic structures and rupture characteristics. This study adopts multi-step...

Comprehensive evaluation and comparison of geodetic nonlinear algorithms for seismic source parameters inversion of shallow earthquakes

Existing evaluations of nonlinear algorithms for geodetic inversion of seismic source parameters are commonly based on single indicators, which neglect parameter sensitivity differences and inconsistencies...

Melt Generation and Asthenospheric Flow beneath the Cameroon Volcanic Line: A Physics-Informed Neural Network Constrained by Seismic Tomography and Lithospheric Architecture

Spanning 1,600 km across oceanic and continental lithosphere, the Cameroon Volcanic Line (CVL) exhibits persistent, non-age-progressive Cenozoic magmatism whose deep drivers remain debated. We hypothesize...

A Robust Zernike Moment–Geometric Constraint Monocular Vision Method for Slope Monitoring in Complex Environments

Field slopes are susceptible to landslide hazards induced by the continuous accumulation of displacement under natural environmental influences, while existing automated monitoring techniques commonly...

CAPG-Net: A Climate-Adaptive Physics-Guided Network for dUT1 Prediction

High-precision prediction of dUT1 is critical for modern space navigation and offers a valuable tool for understanding multi-scale angular momentum exchanges within the Earth system. Traditional methods...

Mineral chemistry and reservoir conditions of the Anecon Grande Volcanic Complex, Paleocene of the North Patagonian Massif

The Paleocene-Eocene Pilcaniyeu Belt records an important magmatic event of the Andean arc in northern Patagonia, to which the Anecon Grande Volcanic Complex (AGVC; North Patagonian Massif, Argentina)...

SELENE: A probabilistic physics-informed machine learning sea-level emulator for geodesy, polar studies, and cryospheric sciences

Understanding the causes and socioenvironmental implications of sea-level change is of fundamental importance in the field of geodesy, solid Earth geophysics, polar studies, and cryospheric sciences....

Distributed autonomous orbit determination for LEO constellations using HAS and inter-satellite links

Low Earth orbit (LEO) satellites have shown great potential for enhancing global navigation satellite system (GNSS)-based positioning, navigation, and timing (PNT) services because of their high orbital...

Present-day interseismic deformation in northern Sumatra and its seismic implications derived from GNSS data

The Sumatra region exhibits a complex tectonic configuration resulting from the oblique subduction of the Indian/Australian plate beneath the Sunda Block. This process has generated several great earthquakes,...

A multi-metric methodology for short-term performance assessment of continuous gravimeters

Continuous gravimeters operating at permanent stations are commonly evaluated using long-term background observations; however, quantitative approaches capable of jointly assessing background noise,...

Performance Evaluation of the Absolute Quantum Gravimeter AQG-B09 Observations for Post-Relocation Calibration of the Superconducting Gravimeter iGrav043

This paper evaluates the performance of the Absolute Quantum Gravimeter AQG-B09 during a four-month co-location (4 Dec. 2024 to 8 Apr. 2025) with the superconducting gravimeter iGrav043 at Todenfeld...

Transformation grids for SIRGAS realization interoperability: An NTv2-based approach for frame and epoch unification across tectonically active Americas

Geodetic Reference System for the Americas (Sistema de Referencia Geodésico para las Américas, SIRGAS) comprises three geodetic realizations, SIRGAS95, SIRGAS2000, and SIRGAS-CON (multi-year solutions...

Deep-GRASP: deep generative downscaling-assimilation-prediction for GRACE/GRACE-FO terrestrial water storage anomalies

The Gravity Recovery and Climate Experiment (GRACE) satellite mission and its successor, GRACE Follow-On (GRACE-FO), have revolutionized our understanding of global land hydrodynamics and terrestrial...

Short-term prediction of polar motion using an LS-BiLSTM-Attention Model integrated with angular momentum and Kriging interpolation

With the rapid development of space geodesy technology and the aerospace industry, cutting-edge fields such as satellite precise orbit determination, deep space exploration, and autonomous navigation...

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