A5101756981- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- earthquake and tectonic studies
- Ionosphere and magnetosphere dynamics
- GNSS positioning and interference
- Computational Physics and Python Applications
- Spacecraft Design and Technology
- Precipitation Measurement and Analysis
- Geophysics and Gravity Measurements
- Soil Moisture and Remote Sensing
- Solar Radiation and Photovoltaics
- Wood and Agarwood Research
- Geomagnetism and Paleomagnetism Studies
- Space Exploration and Technology
- Air Quality and Health Impacts
- Indoor Air Quality and Microbial Exposure
- Biometric Identification and Security
- IoT Networks and Protocols
- Big Data Technologies and Applications
- Solar and Space Plasma Dynamics
- Space exploration and regulation
- Space Satellite Systems and Control
- Climate change and permafrost
- Radio Wave Propagation Studies
Universitat Politècnica de Catalunya
2011-2024
Institut d'Estudis Espacials de Catalunya
2020-2024
FC Barcelona
2020-2023
From 1980 to 2021, earthquakes have caused more than 846,000 casualties and about US$ 661 billion in economic losses. At present, there are no reliable earthquake precursors generate alerts. Currently, the link between Total Electron Content (TEC) variations measured by Global Navigation Satellite Systems (GNSS) monitoring ground stations has been studied. However, GNSS ground-based irregularly disseminated around globe with significant gaps, particularly ocean's regions. In this study, we...
Every year, earthquakes cause numerous casualties and billions of dollars in economic damages, so far, it is impossible to predict them. Many researchers have studied the land surface temperature (LST) anomalies as promising potential earthquake precursors. In this work, more than 30,000 with a Magnitude (Mw) larger 4 been from 2010 2021. Global LST nighttime (0–6 am) data Meteosat Second Generation (MSG), Himawari-8, Geostationary Operational Environmental Satellite (GOES) satellites used...
Every year, earthquakes cause thousands of casualties and high economic losses. For example, in the time frame from 1998 to 2018, total number due was larger than 846 thousand people, recorded losses were about USD 661 billion. At present, there are no earthquake precursors that can be used trigger a warning. However, some studies have analyzed land surface temperature (LST) anomalies as potential precursor. In this study, large database global LST data Geostationary Operational...
Ionospheric perturbations affect the propagation of electromagnetic waves. These perturbations, besides being a problem for space communications, satellite navigation, and Earth observation techniques, could also be used as another tool. Several recent studies showed correlations with earthquakes ionospheric anomalies, but almost all them use ground stations to measure Total Electron Content (TEC) variations, and, in particular, ones occurring after an earthquake. Here, preliminary study is...
Abstract. Ionospheric disturbances induced by seismic activity have been studied in recent years many authors, showing an impact both before and after the occurrence of earthquakes. In this study, ionospheric scintillation produced 2021 La Palma volcano eruption is analyzed. The Cumbre Vieja was active from 19 September to 13 December 2021, earthquakes magnitude 3–4 were recorded, with some them reaching 5. Three methods, GNSS reference monitoring, reflectometry (GNSS-R) NASA CYGNSS, radio...
At some frequencies, Earth’s ionosphere may significantly impact satellite communications, Global Navigation Satellite Systems (GNSS) positioning, and Earth Observation measurements. Due to the temporal spatial variations in Total Electron Content (TEC) dynamics (i.e., fluctuations electron content density), electromagnetic waves suffer from signal delay, polarization change Faraday rotation), direction of arrival, intensity phase scintillation). Although there are previous studies proposing...
Electromagnetic waves propagation through the ionosphere is subject to several effects including refraction, absorption, signal delay, or Faraday rotation. A ray tracer propagator that simulates these an important tool for all satellite missions relying on transionospheric communications and Earth observation. This study presents update 1975 Jones Stephenson IONORT's code by implementing use of up-to-date ionospheric, atmospheric, geomagnetic models (International Reference Ionosphere...
Several factors may induce perturbations on the ionospheric plasma, changing its average electron density and creating small-scale irregularities, shape altitude. Solar irradiance space weather are some of main affecting ionosphere. They produce a seasonal daily dependence, modulated by solar cycle, with more activity during periods higher activity. Recent studies shows that another source for ionosphere be related to internal Earth parameters as seismic activity, in particular, earthquakes....
Recent studies have shown possible signatures or precursors of seismic activity in the ionosphere. Our group is focusing on ionospheric scintillation associated with activity. By time this study was conducted, sudden volcanic eruption Spanish La Palma island, starting September 19 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> , opened a possibility to impact exceptional, well time-defined event iono-sphere and radio-wave propagation...
Annually, earthquakes cause human and material losses. For instance, between 1998 2018, 846 thousand deaths about US$ 661 billion of economic losses were recorded due to earthquakes. Currently, there is no clear precursor forecast However, numerous investigations have attempted find proxies based on Land Surface Temperature (LST) anomalies. In this study, a big database collected from GOES/ABI instrument during the full year 2020 has been used calculate LST anomalies in zones. A total 1350...
Lithosphere-Atmosphere-Ionosphere coupling models have been widely studied and applied to earthquakes their potential precursors. Recent evidence has found that electromagnetic phenomena related might produce ionospheric anomalies even before occurrence. This study analyzes correlation focusing on the scintillation associated seismic activities in 2022 area around Coral Sea. Among all indicators, this S <inf xmlns:mml="http://www.w3.org/1998/Math/MathML"...
The Remote sensing and Interference detector with radiomeTry vegetation Analysis (RITA) payload is one of the Sensing payloads selected by 2nd GRSS Student Grand Challenge to fly on board a 3U satellite from United Arab Emirates' National Space Science Technology Center (NSSTC). main objectives RITA are perform microwave radiometry measurements at L-band, analysis using hyper-spectral camera, Radio-Frequency (RFI) detection classification, technology demonstration sensor networks custom LoRa...
The Remote sensing and Interference detector with radiomeTry vegetation Analysis (RITA) payload is one of the Sensing payloads selected by 2nd GRSS Student Grand Challenge in 2019 to fly on board a 3U satellite that being developed at National space Science Technology Center (NSSTC), United Arab Emirates University. RITA has been designed as an academic mission strong focus Earth Observation techniques technologies. This equipped Software-Defined Radio for microwave radiometry RFI detection,...
Global change and sea level rise are increasing the interest in monitoring oceans, specially Arctic. L-band microwave radiometers can be used for thin ice thickness oceans monitoring, these maps being routinely generated from SMOS [1] SMAP [2], which if combined with imagers provide a higher resolution. The CubeSat-based payload RITA (RadIomeTry vegetation Analysis) plans to address those needs by including an IoT enabled payload, hyperspectral imager radiometer RFI detection mitigation [3]....
General purpose computer designers have recently begun adding cores to their processors in order increase performance. For example, Intel has adopted a homogeneous quad-core processor as base for general computing. PlayStation3 (PS3) game consoles contain multicore heterogeneous known the Cell, which is designed perform complex image processing algorithms at high level. Can modern image-processing utilize these additional cores? On other hand, advancements configurable hardware, most notably...
Abstract. Ionospheric disturbances induced by seismic activity have been studied in the last years many authors, showing an impact both before and after occurrence of earthquakes. In this study, ionospheric scintillation produced 2021 La Palma volcano eruption is analyzed. The "Cumbre Vieja" was active from September 19th to December 13th, 2021, magnitude 3–4 earthquakes were recorded, with some them reaching 5. study three methods: GNSS reference monitoring, Reflectometry (GNSS-R) NASA...
The ionospheric scintillation can be explained as the fluctuations in phase and intensity of electromagnetic rays after crossing ionosphere. Rino's theory was proposed 1979 to quantify this scintillation, subsequent models appeared predict its characteristics. One them is WideBand Model (WBMOD) from 1984. This study aims provide a neural network that emulates behavior WBMOD model, by learning data gathered several ESA projects. By using power-law phase-screen theory, values height-integrated...
From 1998 to 2022, Earthquakes have caused more than 850 thousand deaths and US$ 700 billion in economic losses. At this time, there is no reliable precursor predict them. Many studies attempted link Land Surface Temperature (LST) anomalies earthquake occurrence. This study uses long-term datasets from FengYun-2F/VISSR (Visible Infrared Spin Scan Radiometer) sensors [1] between 2014 2022 analyze the extent of LST their potential earthquakes. More 14,000 land coastal earthquakes magnitude...