- Ionosphere and magnetosphere dynamics
- Geomagnetism and Paleomagnetism Studies
- Earthquake Detection and Analysis
- GNSS positioning and interference
- Solar and Space Plasma Dynamics
- Calibration and Measurement Techniques
- Neural Networks and Applications
- Astronomical Observations and Instrumentation
- Magnetic Field Sensors Techniques
National Institute for Space Research
2018-2020
Abstract The present work is the first of a two‐part paper on Embrace Magnetometer Network. In this part, we new Network (Embrace MagNet) in South America, which originally planned to cover most eastern portion Southern America longitudinal sector by installing and operating fluxgate magnetometer stations. We discuss purpose scientific goals network, associated with aeronomy space weather. provide details instrumentation, location sensors, sensitivity matching process, gain installation....
Abstract The present work shows the preliminary results from analysis for developing an ionospheric scale index map based on Disturbance Ionosphere indeX (DIX). This aims to target all different user groups affected by disturbances, example, navigation, positioning, and satellite communication users, in a simple straightforward approach. Therefore, we used vertical total electron content (VTEC) over South America calculate (TEC) maps covering latitudes 60°S 20°N longitudes 90°W 30°W, with...
Abstract The present work is the second of a two‐part paper on Embrace Magnetometer Network. In this part, we provide some first scientific findings that have already achieved with network. We identified diurnal and seasonal natural variations H component. provided precise determination sudden storm commencements impulse. showed Δ amplitudes derived from MagNet during intense magnetic are in very good agreement Dst index. it possible to investigate effects solar quiet ionospheric current...
Abstract This study examines the variability of ionospheric content during period around 2015 Saint Patrick magnetic storm and when equatorial plasma bubbles (EPBs) are observed quiet time over South America two other events. It uses scales index map based on disturbance (DIX). The results compared to traces ionograms obtained at three different stations (Fortaleza, Campo Grande, Cachoeira Paulista) in Brazil acquired same rate. is TEC developed “Brazilian Studies Monitoring Space Weather”...
November (19 to 24), 2017, sixty three geomagneticists and students from all Americas, Europe Africa attended the II Pan American Workshop on Geomagnetism (II PANGEO) in Vassouras, Rio de Janeiro State, Brazil.II PANGEO consisted of two parts: 1) The scientific session's helded at Mara Palace Hotel 2) Magnetic comparative measurements instrumental demonstration Vassouras Observatory (VSS).So, magnetic observatory practices, instruments use for different purposes scientific, commercial space...
November (19 to 24), 2017, sixty three geomagneticists and students from all Americas, Europe Africa attended the II Pan American Workshop on Geomagnetism (II PANGEO) in Vassouras, Rio de Janeiro State, Brazil.II PANGEO consisted of two parts: 1) The scientific session's helded at Mara Palace Hotel 2) Magnetic comparative measurements instrumental demonstration Vassouras Observatory (VSS).So, magnetic observatory practices, instruments use for different purposes scientific, commercial space...