Review of the SBAS InSAR Time-series algorithms, applications, and challenges
March 2022
In the past 30 years, the small baseline subset (SBAS) InSAR time-series technique has emerged as an essential tool for measuring slow surface displacement and estimating geophysical parameters. Because...
A review of tidal triggering of global earthquakes
January 2023
Earthquake prediction remains a challenging and difficult task for scientists all over the world. The tidal triggering of earthquakes is being proven by an increasing number of investigations, most...
Sedimentary facies interpretation of Gamma Ray (GR) log as basic well logs in Central and Lower Indus Basin of Pakistan
November 2016
Rocks and most type of soils emit Gamma Ray (GR) in varying amount. The emitting elements of primary gamma radiations include potassium 40, uranium, and thorium which are associated with rocks forming...
Performance of GPS and IMU sensor fusion using unscented Kalman filter for precise i-Boat navigation in infinite wide waters
May 2023
The Unmanned Surface Vehicle (USV) navigation system needs an accurate, firm, and reliable performance to avoid obstacles, as well as carry out automatic movements during missions. The Global Positioning...
Real-time earthquake magnitude prediction using designed machine learning ensemble trained on real and CTGAN generated synthetic data
May 2025
The earthquake early warning (EEW) system provides advance notice of potentially damaging ground shaking. In EEW, early estimation of magnitude is crucial for timely rescue operations. A set of thirty-four...
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...
TLE orbit determination using simplex method
September 2023
Two-Line Element (TLE) datasets are the only orbital data source of Earth-orbiting space objects for many civil users for their research and applications. The datasets have uneven qualities that may...
Assessment of hybrid geoids in Chile and Spain, combining GGM and GNSS/Leveling observations
March 2021
This research presents the results for analyses done to five geopotential global models (GGM), comparing them with ground data from GNSS and leveling in heterogenic zones from the geodetic perspective,...
Evidences of the expanding Earth from space-geodetic data over solid land and sea level rise in recent two decades
July 2015
According to the space-geodetic data recorded at globally distributed stations over solid land spanning a period of more than 20-years under the International Terrestrial Reference Frame 2008, our previous...
Efficient 2-D MUSIC algorithm for super-resolution moving target tracking based on an FMCW radar
September 2024
Frequency modulated continuous wave (FMCW) radar is an advantageous sensor scheme for target estimation and environmental perception. However, existing algorithms based on discrete Fourier transform...
Integrating geodetic infrastructures for GNSS displacements analysis in Chile: A case study with REDGEOMIN (2019–2022)
May 2025
This article investigates crustal displacements in Chile between 2019 and 2022, a region marked by the interaction between three Plates. Utilizing the Red Geodésica para la Minería (Geodetic Network...
Review of SAR imaging geodesy for glacier velocity monitoring
May 2025
The surface velocity is one of the most important characteristics of glaciers. Monitoring and mapping glacier movements are of great significance for the studies of sea-level rise, glacier mass balance...
Analysis of the effect of the 2021 Semeru eruption on water vapor content and atmospheric particles using GNSS and remote sensing
January 2024
Mount Semeru, an active volcano in East Java, Indonesia, erupted on December 4, 2021, following extreme rainfall that caused an avalanche of hot pyroclastic flows and lava. The tropospheric conditions...
Damping modification factors for acceleration response spectra
September 2017
DMF (Damping modification factors) are used to modify elastic response spectral values corresponding to damping ratio 5% to other damping levels. The influence of seismological parameters (magnitude,...
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...
Unscented Kalman filter for a low-cost GNSS/IMU-based mobile mapping application under demanding conditions
March 2024
For the last two decades, low-cost Global Navigation Satellite System (GNSS) receivers have been used in various applications. These receivers are mini-size, less expensive than geodetic-grade receivers,...
Spatial and temporal analysis of urban heat island effect over Tiruchirappalli city using geospatial techniques
May 2023
Alterations made to the natural ground surface and the anthropogenic activity elevate the surface and air temperature in the urban areas compared with the surrounding rural areas, known as urban heat...
Atmosphere, ocean and lithosphere interaction as a possible drive of earthquake triggering
November 2020
The comparison of tiltmeter and strainmeter data in the periods of the strongest earthquakes with tropical cyclone activities in the World Ocean during January–April 2014 is made. Main features of the...
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...
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...
Resolution analysis of the gravity survey network in the middle and south sections of Tan-Lu fault and recent changes in the gravity field
May 2025
In this paper, we computed the fractal dimension of three survey areas within the central and southern sections of the Tan-Lu fault zone using fractal analysis. Subsequently, simulations were conducted...
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...
Land surface temperature and spectral indices: A seasonal study of Raipur City
January 2022
This case study evaluates the seasonal variability of the Pearson's linear correlation coefficient of land surface temperature (LST) with some spectral indices like NDVI, NDWI, NDBI, and NDBaI by using...
Sagaing Fault slip and deformation in Myanmar observed by continuous GPS measurements
January 2016
The Sagaing Fault is a major tectonic structure between the Indian Plate and Sunda Plate. The fault measures 1200 km along north–south and cuts through the centre of Myanmar. Many urban areas lie along...
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....