A review of altimetry waveform retracking for inland water levels
July 2025
Reliable surface height observations over inland water bodies are useful for understanding the hydrological cycle. Satellite radar altimetry particularly contributed with its long-term archive and minimal...
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Kinematics of the Kashmir Himalaya: Inferences from geological and geodetic data
July 2025
The GPS data sourced from the permanent GPS network in the Kashmir Himalaya were utilized to quantify both vertical and horizontal deformation rates in the Kashmir Valley of the northwestern Himalaya....
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A zenith wet delay improved model in China based on GPT3 and random forest
July 2025
Zenith wet delay (ZWD) is a key parameter for the precise positioning of global navigation satellite systems (GNSS) and occupies a central role in meteorological research. Currently, most models only...
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Enhanced BDS four-frequency cycle slip detection and repair using fuzzy clustering analysis
July 2025
Cycle slip detection and repair is one of the key technologies for GNSS high-precision positioning. We introduce an enhanced methodology for detecting and repairing BDS four-frequency cycle slips, utilizing...
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Magnitude and seismogenic fault determination of ground effects paleosismic-induced at Huoshan and Guzhen in Anhui province, China
July 2025
In paleoseismic research, defining the age of an event is relatively straightforward, but pinpointing its magnitude with precision is challenging. This difficulty primarily arises because physical parameters,...
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GNSS time series analysis of the crustal movement network of China: Detecting the optimal order of the polynomial term and its effect on the deterministic model
July 2025
GNSS time series analysis provides an effective method for research on the earth's surface deformation, and it can be divided into two parts, deterministic models and stochastic models. The former part...
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Spatiotemporal distribution of GNSS-derived PWV in Australia from 2010 to 2019
July 2025
The weather in Australia is significantly influenced by water vapor evaporated from warm ocean surfaces, which is closely associated with various extreme weather events in the region, such as floods,...
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Analysis of ionospheric disturbances due to earthquakes using 3D tomography models to test the height maximum of CID correlation in various regions
July 2025
Ionospheric disturbances caused by acoustic waves emitted during earthquakes were studied using the Global Navigation Satellite System (GNSS) to analyze the changes in total electron content (TEC) values....
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Three-dimensional density structure of Xu-Su arc-shaped nappe structure and its relationship with seismic activity
July 2025
Controlled by the squeezing collision between the Yangtze block and the North China block and the left movement of the Tanlu fault, the Xu-Su region developed into an arc-shaped nappe structure, and...
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Spatiotemporal evolution of long-term slow slip events at the Hikurangi subduction zone, New Zealand (2021–2023): Implications for seismic activity
July 2025
Various slow slip events (SSEs) with distinct characteristics have been detected globally, particularly in regions with dense Global Navigation Satellite Systems (GNSS) networks. In the Hikurangi subduction...
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Modeling and forecasting of TEC using subspace-based SSA-LRF-ANN model
July 2025
Subspace-based signal processing methods are fundamentally pre-trained Artificial Neural Networks (ANN) that provide the basic structure for numerous computer vision applications and explore the most...
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Reappraising the rupture fault of the 1739 M~8 Pingluo earthquake (Ningxia Province) from 3D finite-element elastodynamic modeling
Available online 14 July 2025
The 1739 M~8 Pingluo earthquake occurred around the Yinchuan Graben, bounded by the Helan Mountains to the west and the Ordos Block to the east. Seismological observations have shown that surface fault...
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Methodology for optimizing heights in the Amsterdam system based on regional and global geoid/quasi-geoid models
Available online 11 July 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...
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Coseismic deformation and slip distribution of the 2023 Jishishan Mw6.0 earthquake based on InSAR measurements
Available online 8 July 2025
A MW6.0 earthquake struck Jishishan County in Linxia Prefecture, Gansu Province, on December 18, 2023. In this research, Sentinel-1A satellite radar observations were used to obtain the field of coseismic...
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Present-day crustal deformation in central Sumatra, Indonesia derived from GNSS observation and tectonic implications
Available online 28 June 2025
Central Sumatra, Indonesia, is historically known for its significant seismic activities, most notably the devastating 1883 earthquake. In this study, we measured the interseismic deformation using...
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Basement structure across Renun segment near Toba caldera inferred from the gravity anomaly: Implication for potential earthquake rupture barrier
Available online 28 June 2025
Basement structures may influence how ruptures propagate during an earthquake. However, most structural evidence is beneath the thick layer of younger volcanic sediments. In this study, gravity method...
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Strain rate of Boso slow slip events related to seismic activity after 2011 using GNSS data
Available online 23 June 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...
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On-orbit thermal environment analysis of the optical bench of a new generation of gravity measurement satellites
Available online 23 June 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...
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Advances in time-frequency based geopotential determination
Available online 17 June 2025
The state-of-the-art optical atomic clocks and the time-frequency signal transmission open a fresh field for gravity potential (geopotential) determination. Various methods, including optical fiber...
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Evaluating Euler pole parameters for the north American terrestrial reference frame of 2022
Available online 16 June 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...
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GNSS imaging of vertical crustal deformation in Chinese mainland derived from decade-long continuous GNSS measurements
Available online 14 June 2025
To characterize the spatial patterns of vertical crustal movement of Chinese mainland, GNSS imaging technology was applied to map the tectonic deformation of the region. In this study, the vertical...
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Improved sparrow search algorithm for inversion of geometric parameters of earthquake source faults
Available online 11 June 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,...
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Static stress implications for Kīlauea volcano activity after the 2018 Hawai'i earthquake
Available online 3 June 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...
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Performance of invariants of gravity gradient tensor in matching navigation: A case study in South China Sea
May 2025
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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Constructing seasonal records of Ross Ice Shelf elevation changes using ICESat altimetry data
May 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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