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ISSN: 1674-9847
CN: 42-1806/P

Geodetic characterization of active Katrol Hill Fault (KHF) of Central Mainland Kachchh, western India

After the M7.7 earthquake in 2001, the Kachchh rift basin became the focus of various geological and geophysical researches on the western Indian plate. As an essential technology, the Global Navigation...

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Integrated water vapor during active and break spells of monsoon and its relationship with temperature, precipitation and precipitation efficiency over a tropical site

Global Positioning System (GPS) measurements of integrated water vapor (IWV) for two years (2014 and 2015) are presented in this paper. Variation of IWV during active and break spells of Indian summer...

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Crustal deformation measurements by global positioning system (GPS) along NSL, western India

The Narmada Son Lineament (NSL) is a major palaeo-rift system and seismically active intra-plate region. In this paper, we processed and analyzed the GPS data from 2009 to 2016 to study the geodynamic...

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Manifestation of earthquake preparation zone in the ionosphere before 2021 Sonitpur, Assam earthquake revealed by GPS-TEC data

Global Positioning System (GPS) Continuously Operating Reference Station (CORS) data analysis shows that the ionosphere's electron density variability is linked to the deformation and stress accumulation...

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Quaternary tectonic history of seismically active intraplate Kachchh Rift Basin, western India: A review

Since the recorded historical period, the Kachchh Rift Basin (KRB) has encountered numerous moderate to large magnitude earthquakes. According to the series of seismicity research so far, there are...

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Relative active tectonics evaluation using geomorphic and drainage indices, in Dadra and Nagar Haveli, western India

The present study area, Dadra and Nagar Haveli, contains several lineaments and traces of active faults. The various aspect of the geomorphic analysis, i.e., stream length (SL) gradient, hypsometric...

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Quality assessment of Continuous Operating Reference Stations (CORS) - GPS stations in Mexico

The present analysis provided the quality assessment of 65 Continuous Operating Reference Stations (CORS) situated in and around Mexico using the data of about ten years (January 2010 to January 2020)....

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Response of drainage to tectonics and PS-InSAR derived deformation study in Bilaspur, northwestern Himalaya, India

The study of drainage patterns in tectonically active regions is conducive to the prediction of regional geomorphology. Subtle subsurface changes can be detected by drainage conditions and manifested...

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Magnetic fabric and geomorphic characteristic of Neotectonic activity along strike direction of North Almora Thrust, Kumaun Lesser Himalaya, India

Structurally, the North Almora Thrust (NAT), is placed in the northern proximity of the Almora Nappe (AN) in the Kumaun Lesser Himalaya. The NAT is characterized by the presence of a zone of mylonitic...

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Assessment of geodetic strain and stress variations in Nepal due to 25 April 2015 Gorkha earthquake: Insights from the GNSS data analysis and b-value

A magnitude MW7.8 earthquake occurred on 25 April 2015 (referred as Gorkha earthquake). We have analyzed the spatial variation of b-value and two-dimensional strain within Nepal Himalaya before and...

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Dependence of epoch-wise two-way nested ANOVA estimates of variances of unmodeled effects present in relative GPS positioning on satellite elevation cutoff angle and PDOP mask

Impact of satellite elevation cutoff angle and PDOP (Position Dilution Of Precision) mask change on epoch-wise variance components of unmodeled effects that accompany relative GPS positioning is presented...

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On the spatio-temporal variation in b-value after 25 April 2015 Gorkha, Nepal earthquake

In the present study, the spatial–temporal distribution of b-value along the five faults area namely Judi fault, Thaple fault, Kathmandu fault, Motihari-GauriShanker fault, and Motihari-Everest fault...

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Analysis of coordinate time series of DORIS stations on Eurasian plate and the plate motion based on SSA and FFT

This study focuses on analyzing the time series of DORIS beacon stations and plate motion of the Eurasian plate by applying Singular spectrum analysis (SSA) and fast Fourier transform (FFT). First,...

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Impact assessment of the seasonal hydrological loading on geodetic movement and seismicity in Nepal himalaya using GRACE and GNSS measurements

The Himalayan terrain is an epitome of ongoing convergence and geodetic deformation where both tectonic and non-tectonic forces prevail. In this study, the Gravity Recovery and Climate Experiment (GRACE)...

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Delineation of sensitive coastal zone of northern Ramanathapuram coast, Tamilnadu, India, using a GIS approach

This research aims to assess the sensitive coastal zones by analyzing the shoreline changes such as accretion and erosion in the eastern coastal part of Ramanathapuram District, Tamil Nadu, India. The...

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Bathymetry inversion using the deflection of the vertical: A case study in South China Sea

The deflection of the vertical is one of the essential products of altimetry. However, unlike gravity and vertical gravity gradients, it is seldom used in bathymetry inversion. In this study, an algorithm...

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Thermospheric density responses to Martian dust storm in autumn based on MAVEN data

The unique seasonal surface dust storms on Mars have a significant impact on the Martian atmosphere. However, due to the lack of observations, semi-empirical models are difficult to simulate the density...

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Three-dimensional coseismic deformation of the 2016 MW7.8 Kaikuora, New Zealand earthquake obtained by InSAR and offsets measurements

The 2016 MW7.8 Kaikoura earthquake struck the northern part of south Island, New Zealand, within the active and complex Australia–Pacific plate boundary system. Firstly, we used the InSAR method to...

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Analysis of the common model error on velocity field under Colored noise model by GPS and InSAR: A case study in the Nepal and everest region

The accuracy of the velocity field will be affected by the noise model and common mode errors through GPS time series analysis. In order to analyze the influence of these two factors on the accuracy...

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Interseismic deformation rate of the Haiyuan fault system based on the modified SBAS method

Radar interferograms are usually influenced by factors such as atmospheric artifacts, orbital errors, and terrain errors. It is difficult to reduce the influence by using the conventional small baseline...

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Revisit the period and quality factor of the Chandler wobble and its possible geomagnetic jerk excitation

The period and quality factor of the Chandler wobble (CW) are useful for constraining the Earth's internal structure properties, such as the mantle elasticity. It has been shown that the CW is mainly...

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Determination of altitudes of the three main Ecuadorian summits through GNSS positioning

Determining the altitude of mountains is one of the most fundamental challenges for humankind. Therefore, the main objective of the study is to determine the altitudes of the three main summits in Ecuador...

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Active tectonics of the eastern java based on a decade of recent continuous geodetic observation

The eastern part of Java Island is transversed by major faults such as Cepu, Blumbang, Surabaya, and Waru Segment, part of the Kendeng Fault, Wonsorejo Fault, Pasuruan Fault, and Probolinggo Fault....

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Consistency analysis of GRACE and GRACE-FO data in the study of global mean sea level change

Global mean sea level (GMSL) change is one of the important indicators of global climate change and is a crucial scientific issue of continuing interest. As satellite altimeter data, the Gravity Recovery...

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Genetic Nelder-Mead neural network algorithm for fault parameter inversion using GPS data

The traditional genetic algorithm (GA) has unstable inversion results and is easy to fall into the local optimum when inverting fault parameters. Therefore, this article considers the combination of...

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