Probing signals of atmospheric gravity waves excited by the July 29, 2021 MW8.2 Alaska earthquake
Available online 3 December 2023
It is commonly believed that the atmosphere is decoupled from the solid Earth. Thus, it is difficult for the seismic wave energy inside the Earth to propagate into the atmosphere, and atmospheric pressure...
Share article
Present-day movement characteristics of the Qinghai Nanshan fault and its surrounding area from GPS observation
Available online 3 December 2023
The Qinghai Nanshan fault is a larger fault in the Northeastern Tibetan Plateau. In previous studies, its movement characteristics are mainly investigated with geological and seismic observations, and...
Share article
Vertical deformation before and after the 2022 Menyuan Ms6.9 earthquake and analysis of earthquake precursors
November 2023
This study analyzed the vertical deformation before and after the 2022 Menyuan Ms6.9 earthquake in Qinghai Province, China, using leveling profiles across faults measured from Minle County in Gansu...
Share article
Extraction of transient signal from GPS position time series by employing ICA
November 2023
Transient deformation, such as post-seismic slip, slow slip and pre-seismic slip events, is a limited low-frequency deformation that can last for hours to months, in contrast to a sudden slip on a fault...
Share article
Geodetic constraints on contemporary three-dimensional crustal deformation in the Laji Shan–Jishi Shan tectonic belt
November 2023
The Laji Shan–Jishi Shan tectonic belt (LJTB), located in the southern part of the northeastern Tibetan Plateau (NETP), is a tectonic window to reveal regional tectonic deformation in the NETP. However,...
Share article
Time-varying gravity field model of Sichuan-Yunnan region based on the equivalent mass source model
November 2023
High-precision time-varying gravity field is an effective way to study the internal mass movement and understanding the spatio-temporal evolution process of the geodynamic system. Compared to the satellite...
Share article
Noise reduction and periodic signal extraction for GNSS height data in the study of vertical deformation
November 2023
Global navigation satellite system (GNSS) technique has irreplaceable advantages in the continuous monitoring of surface deformation. Reducing noise to improve the signal-to-noise ratio (SNR) and extract...
Share article
Synthetic aperture radar interferometry–based coseismic deformation and slip distribution of the 2022 Menyuan MS6.9 earthquake in Qinghai, China
November 2023
On January 8, 2022, a 6.9 magnitude earthquake occurred in Menyuan County, Qinghai Province, with the epicenter located at the intersection of the Tuolaishan Fault and the Lenglongling Fault, which...
Share article
Evaluating the weekly changes in terrestrial water storage estimated by two different inversion strategies in the Amazon River Basin
November 2023
In this study, we estimated the weekly Gravity Recovery and Climate Experiment (GRACE) spherical harmonic (SH) solutions and regional mascon solutions using GRACE-based Geopotential Difference (GPD)...
Share article
A new method for coseismic offset detection from GPS coordinate time series
November 2023
Currently, the extraction of coseismic offset signals primarily relies on earthquake catalog data to determine the occurrence time of earthquakes. This is followed by the process of differencing the...
Share article
The June 2022 Khost earthquake in southeastern Afghanistan: A complicated shallow slip event revealed with InSAR
November 2023
On June 22, 2022, the Mw6.2 earthquake in southeastern Afghanistan caused a severe disaster. We used the Sentinel-1A ascending and descending track images of the European Space Agency and interferometric...
Share article
Abnormal characteristics and effectiveness evaluation of the micro-seismic signal before the Debao MS4.8 earthquake
November 2023
The Debao MS4.8 earthquake occurred in western Guangxi on August 5, 2021, near where the Jingxi MS5.2 earthquake occurred in 2019. To study the increasing seismicity in western Guangxi, it is necessary...
Share article
Co-seismic surface displacement of the June 21, 2022 Khōst MW6, Afghanistan earthquake from InSAR observations
Available online 10 November 2023
A robust estimation of the earthquake location, seismic moment, and fault geometry is essential for objective seismic hazard assessment. Seismic events in a remote location, specifically in the absence...
Share article
The GNSS PWV retrieval using non-observation meteorological parameters based on ERA5 and its relation with precipitation
Available online 7 November 2023
The pressure and temperature significantly influence precipitable water vapor (PWV) retrieval. Global Navigation Satellite System (GNSS) PWV retrieval is limited because the GNSS stations lack meteorological...
Share article
Study on lithospheric strength of the Anatolian plateau and implications for strong earthquake activity in Turkey
Available online 4 November 2023
On February 6, 2023, the doublet earthquake including two main shocks with magnitudes MW7.8 and MW7.5, occurred near the western side of the East Anatolian Fault at the southeast boundary of the Anatolian...
Share article
Impacts of artificial dams on terrestrial water storage changes and the Earth's elastic load response during 1950–2016: A case study of medium and large reservoirs in Chinese mainland
Available online 3 November 2023
The construction of dams for intercepting and storing water has altered surface water distributions, land-sea water exchanges, and the load response of the solid Earth. The lack of accurate estimation...
Share article
Stress triggering effect on the 2022 Honghe MS5.0 earthquake with historical strong earthquakes
Available online 31 October 2023
The 2022 Honghe MS5.0 seismic event is intriguing due to its occurrence in the south of the Red River Fault, an area historically lacking seismic activities greater than MS5.0. To elucidate the seismogenic...
Share article
Exact and heuristic formulae to compute the geodetic height from the ellipse equation
Available online 18 October 2023
The conversion of the cartesian coordinates of a point to its geodetic equivalent coordinates in reference to the geodetic ellipsoid is one of the main challenges in geodesy. The ellipse equation in...
Share article
Algorithms and statistical analysis for linear structured weighted total least squares problem
Available online 4 October 2023
Weighted total least squares (WTLS) have been regarded as the standard tool for the errors-in-variables (EIV) model in which all the elements in the observation vector and the coefficient matrix are...
Share article
Deformation monitoring of long-span railway bridges based on SBAS-InSAR technology
Available online 1 October 2023
The deformation monitoring of long-span railway bridges is significant to ensure the safety of human life and property. The interferometric synthetic aperture radar (InSAR) technology has the advantage...
Share article
Quality assessment of the Topo-Iberia CGPS stations and data quality's effects on postfit ionosphere-free phase residuals
Available online 1 October 2023
This paper analyzed GPS data from the Topo-Iberia network spanning almost 12 years (2008–2020). The data quality information for all 26 Topo-Iberia stations is provided for the first time, complementing...
Share article
Application of SPAC method and electromagnetic wave CT in karst detection of Wuhan Metro Line 8
September 2023
In recent years, karst construction projects in the built-up area of Wuhan (capital of Hubei Province, China) are increasing, and the karst geological disasters have aroused social concerns. The actual...
Share article
Performance evaluation of high/ultra-high-degree global geopotential models over Vietnam using GNSS/leveling data
September 2023
The availability of many high-degree Global Geopotential Models (GGMs), namely EGM2008, EIGEN-6C4, GECO, SGG-UGM-1, SGG-UGM-2, XGM2019e_2159, and GGMPlus, challenges users regarding which model is best...
Share article
The mathematical weighting of GNSS observations based on different types of receivers/antennas and environmental conditions
September 2023
Stochastic models play an important role in achieving high accuracy in positioning, the ideal estimator in the least-squares (LS) can be obtained only by using the suitable stochastic model. This study...
Share article
Vertical deformation analysis based on combined adjustment for GNSS and leveling data
September 2023
A method is proposed to fuse the velocity data of the global navigation satellite system (GNSS) and leveling height via combined adjustment with constraints. First, stable GNSS–leveling points are uniformly...
Share article