A5001729466- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- Earthquake Detection and Analysis
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- GNSS positioning and interference
- Soil Moisture and Remote Sensing
- Inertial Sensor and Navigation
- Synthetic Aperture Radar (SAR) Applications and Techniques
- earthquake and tectonic studies
- Precipitation Measurement and Analysis
- Atmospheric Ozone and Climate
- Geophysical Methods and Applications
- Soil and Unsaturated Flow
- Satellite Image Processing and Photogrammetry
- Advanced Adaptive Filtering Techniques
- Galician and Iberian cultural studies
- Geological and Geophysical Studies
- Atmospheric and Environmental Gas Dynamics
- Cardiovascular Health and Disease Prevention
- Remote Sensing and LiDAR Applications
- Urban Heat Island Mitigation
- Planetary Science and Exploration
- Land Use and Ecosystem Services
- Economic and Technological Developments in Russia
Universidad de Alcalá
2021-2024
Henan Polytechnic University
2024
Nanjing University of Information Science and Technology
2019-2023
Universidad Politécnica de Madrid
2020-2022
Nanjing University
2021
Shanghai Astronomical Observatory
2015-2019
University of Colorado Boulder
2019
University of Chinese Academy of Sciences
2015-2018
Global Navigation Satellite Systems-Reflectometry (GNSS-R) has shown unprecedented advantages to sense Soil Moisture Content (SMC) with high spatial and temporal coverage, low cost, under all-weather conditions. However, implementing an appropriated physical basis estimate SMC from GNSS-R is still a challenge, while previous solutions were only based on direct comparisons, statistical regressions, or time-series analyses between observables external products. In this paper, we attempt...
We analyze vertical total electron content (vTEC) variations from the Global Navigation Satellite System (GNSS) at different latitudes in continents of world during geomagnetic storms June 2015, August 2018, and November 2021. The resulting ionospheric perturbations low mid-latitudes are investigated terms prompt penetration electric field (PPEF), equatorial electrojet (EEJ), magnetic H component INTERMAGNET stations near equator. East Southeast Asia, Russia, Oceania exhibited positive vTEC...
Abstract Monitoring and understanding the upper atmosphere processes is important for orbital decay space physics. Nowadays, Low Earth Orbit (LEO) accelerometers provide a unique opportunity to study thermospheric density variations with unprecedented details. In this paper, mass densities from Gravity Recovery Climate Experiment (GRACE) are investigated period 2003–2016 using principal component analysis (PCA). The resulting modes analyzed parameterized in terms of solar magnetospheric...
The ionospheric response and the associated mechanisms to geomagnetic storms are very complex, particularly during February 2014 multiphase storm. In this paper, low-latitude ionosphere responses their coupling mechanisms, storm, investigated from ground-based magnetometers global navigation satellite system (GNSS), space weather data. residual disturbances between total electron content (TEC) of International GNSS Service (IGS) maps (GIMs) empirical models used investigate storm-time...
Abstract. This study aims to characterize several key aspects of the ionosphere during intense geomagnetic storms that occurred on March 23–25, 2023, April November 4–7, 2023 and May 10–13, 2024 ascending phase Solar Cycle 25 (SC25). We are especially interested role asymmetric Joule Heating (JH) in structuring Equatorial Ionization Anomaly (EIA), such as double crest, single or merged, which may lead formation suppression post-sunset ionospheric plasma irregularities. For this purpose, we...
Soil moisture is the most active part of terrestrial water cycle, and it a key variable that affects hydrological, bio-ecological, bio-geochemical processes. Microwave remote sensing an effective means monitoring soil moisture, but existing conventional radiometers single-station radars cannot meet scientific needs in terms temporal spatial resolution. The emergence GNSS-R (Global Navigation Satellite Systems Reflectometry) technology provides alternative method with high An important...
Abstract The ionosphere is very active and complex due to photo‐ionization from the solar activity, while traditional empirical models can only give a rough description of its actual variations. Nowadays, global maps (GIMs) derived denser Global Navigation Satellite Systems (GNSS) world‐tracking data provide an excellent total electron content (TEC) set for ionospheric research modeling. In this paper, long‐tern variations 16‐year (2003–2018) TEC time series GIMs are investigated by using...
The plasmasphere is located above the ionosphere with low-energy plasma, which an important component of solar-terrestrial space environment. As link between and magnetosphere, plays role in coupling process. Therefore, it great significance to study electron content variation for Nowadays, topside global positioning system (GPS) observations on Low Earth Orbit (LEO) satellites provide a unique opportunity estimate variations plasmasphere. In this paper, plasmaspheric total (PTEC) estimated,...
Abstract We use multiple instruments data to investigate the behavior of equatorial and low‐latitude ionosphere during geomagnetically active quiet period November 1–6, 2021. In this context, total electron content (TEC) obtained from Global Positioning System (GPS) receivers in regions Asia, Africa, America are used assess variations plasma density storm. The storm‐time ionization levels were found vary significantly crests Equatorial Ionization Anomaly (EIA) region over 3 longitudes. Rate...
The ionospheric storm time responses during August 2018 are investigated over South American region using multiple observables, for example, Global Navigation Satellite System (GNSS) derived vertical total electron content (VTEC) from International GNSS Service, magnetic field data, geomagnetic indices, global maps, thermospheric mass density (TMD), and [O/N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ] ratio measurement....
We study the variation in plasma beta, Alfven Mach number, and magnetosonic number during different geomagnetic storms of solar cycles 23, 24, 25. In addition, we employ measurements wind’s flow pressure, proton density, interplanetary magnetic field (IMF) along z-direction (Bz), temperature, velocity, index SYM-H. Here, wavelet coherence (WTC) approach have been used with symmetrical H component (SYM-H) index, which are critical indicators behavior interactions. A CME or, much less...
Abstract Space‐weather conditions can often have a detrimental impact on satellite communications and limited experimental data has made it challenging to understand the complex processes that occur in upper atmosphere. To overcome this challenge, we utilized coordinated multi‐instrumental dataset consisting of GNSS airglow remote sensing, ionosonde, magnetometer, in‐situ investigate plasma depletions. We present case study focused geomagnetic storm occurred 27 February 2014. During storm,...