IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres

 

IONSAT té com objectius la investigació, desenvolupament i prototipatge en el camp de la determinació ionosfèrica precisa (com contingut electrònic, ones ionosfèriques, signatures de fulguracions solars, centelleig i senyals relacionats amb sismes), meteorologia espacial, i navegació precisa, basat en sistemes de satèl·lits (com els de navegació global,-GPS, GLONASS, Galileo o Beidou-, i ampliacions com WAAS, EGNOS, MSAS o GAGAN, o altímetres com JASON2)

Investigación, desarrollo y prototipado en el campo de la determinación ionosférica precisa (contenido electrónico total, densidad de número de electrones libres, ondas ionosféricas, signaturas de fulguraciones solares, centelleo, señales relacionadas con seísmos, entre otros), meteorología espacial y navegación precisa, basado en sistemas de satélites (tales como los sistemas de satélites para la navegación global, -GPS, GLONASS, Galileo o Beidou-, sistemas de ampliación como WAAS, EGNOS, MSAS o GAGAN, o altímetros como TOPEX, JASON, JASON2, entre otros).

Research, development and prototyping in the field of precise ionospheric determination (such as the total electron content, electron density, ionospheric waves,solar flare signatures, scintillation, seismic-related signatures, among others), space weather and precise navigation, based on satellite systems (such as Global Navigation Satellite Systems, for example GPS, GLONASS, Galileo and Beidou, augmentation systems such as WAAS, EGNOS, MSAS or GAGAN, or altimeters such as TOPEX, JASON, JASON2, among others).

Research, development and prototyping in the field of precise ionospheric determination (such as the total electron content, electron density, ionospheric waves,solar flare signatures, scintillation, seismic-related signatures, among others), space weather and precise navigation, based on satellite systems (such as Global Navigation Satellite Systems, for example GPS, GLONASS, Galileo and Beidou, augmentation systems such as WAAS, EGNOS, MSAS or GAGAN, or altimeters such as TOPEX, JASON, JASON2, among others).

Recent Submissions

  • Global teleconnections of rapid ionospheric fluctuations as observed via GNSS measurements 

    Monte Moreno, Enrique; Hernández Pajares, Manuel; Yang, Heng (Institute of Electrical and Electronics Engineers (IEEE), 2025-01-06)
    Article
    Open Access
    The rapid fluctuations in the electron content of the ionosphere can significantly affect the performance and reliability of communication and GNSS systems. These fluctuations are closely linked to space weather and can ...

  • Integrating plasmasphere, ionosphere and thermosphere observations and models into a standardised open access research environment: The PITHIA-NRF international project 

    Belehaki, Anna; Häggström, Ingemar; Kiss, Tamas; Galkin, Ivan; Tjulin, Anders; Miháliková, Mária; Enell, Carl Fredrik; Pierantoni, Gabriel; Chen, Yin; Sipos, Gergely; Hernández Pajares, Manuel; Graffigna, Victoria (2025-02-01)
    Article
    Open Access
    The PITHIA-NRF project “Plasmasphere Ionosphere Thermosphere Integrated Research Environment and Access services: a Network of Research Facilities” aims at building a European distributed network that integrates observations ...

  • Ionospheric response to the 2020 Samos earthquake and tsunami 

    Alfonsi, Lucilla; Cesaroni, Claudio; Hernández Pajares, Manuel; Astafyeva, Elvira; Bufféral, Simon; Elias, Panagiotis; Belehaki, Anna; Ioanna, Tsagouri; Yang, Heng; Guerra, Marco (Springer, 2024-01-19)
    Article
    Open Access
    On 30 October 2020 at 11:51 UT, a magnitude 7.0 earthquake occurred in the Dodecanese sea (37.84°N, 26.81°E, 10 km depth) and generated a tsunami with an observed run-up of more than 1 m on the Turkish coasts. Both the ...

  • Validation of global ionospheric models using long-term observations of pulsar Faraday rotation with the LOFAR radio telescope 

    Porayko, Nataliya; Mevius, Maaijke; Hernández Pajares, Manuel; Tiburzi, Caterina; Olivares Pulido, Germán; Liu, Qi; Verbiest, Joris; Künsemöller, Jörn; Krishnakumar, Moochickal Ambalappat; Bak Nielsen, Ann Sofie; Brüggen, Marcus; Graffigna, Victoria; Dettmar, Ralf Jürgen; Kramer, Michael (Springer Nature, 2023-12-13)
    Article
    Open Access
    Broad band pulsar radiation can be effectively used to monitor the properties of the magneto-ionic media through which it propagates. Faraday rotation calculated from polarised pulsar observations provides an integrated ...

  • GNSS solar astronomy in real-time during more than one solar cycle 

    Hernández Pajares, Manuel; García Rigo, Alberto; Monte Moreno, Enrique; Liu, Qi; Roma Dollase, David; Yang, Heng; Beniguel, Yannick; Moreno Borrás, David; Fors Aldrich, Octavi; Lyu, Haixia; Orús Pérez, Raul; Ventura Traveset, Javier (Elsevier, 2024-09-15)
    Article
    Open Access
    This work presents a summary of the continuous non-stop (hereinafter 24/7) real-time measurement and warning system for EUV solar activity, which is based on worldwide multifrequency Global Navigation Satellite Systems ...

  • The correlation between ionospheric electron density variations derived from swarm satellite observations and seismic activity at the Australian–Pacific tectonic plate boundary 

    Jarmolowski, Wojciech; Wielgosz, Pawel; Hernández Pajares, Manuel; Heng, Yang; Milanowska, Beata; Krypiak-Gregorczyk, Anna; Monte Moreno, Enrique; García Rigo, Alberto; Graffigna, Victoria; Haagmans, Roger (Multidisciplinary Digital Publishing Institute (MDPI), 2023-11-29)
    Article
    Open Access
    Swarm electron density (Ne) observations from the Langmuir probe (LP) can detect ionospheric disturbances at the altitude of a satellite. Along-track satellite observations provide a large number of very short observations ...

  • Power-law distribution of rapid ionosphere electron content fluctuations via GNSS measurements 

    Monte Moreno, Enrique; Hernández Pajares, Manuel; Yang, Heng (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Article
    Open Access
    The ionosphere is a dynamic region of the Earth’s upper atmosphere that exhibits various fluctuations in electron density. These fluctuations can be estimated using measurements from the global navigation satellite system ...

  • PPP at low latitudes with ionospheric model exclusively based on single frequency GNSS measurements 

    Christovam de Souza, Ana Lucia; Prol, Fabricio dos Santos; Jerez, Gabriel Olivera; Hernández Pajares, Manuel; Camargo, Paulo de Oliveira (John Wiley & sons, 2023-08-01)
    Article
    Open Access
    Single frequency users of the Global Navigation Satellite System (GNSS) should correct the ionospheric delay to obtain positioning solutions. A valuable source of ionospheric delay corrections is the global ionospheric ...

  • Ionospheric weather at two Starlink launches during two-phase geomagnetic storms 

    Gulyaeva, Tamara L.; Hernández Pajares, Manuel; Stanislawska, Iwona (Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-07)
    Article
    Open Access
    The launch of a series of Starlink internet satellites on 3 February 2022 (S-36), and 7 July 2022 (S-49), coincided with the development of two-phase geomagnetic storms. The first launch S-36 took place in the middle of ...

  • Assessment of GRAS ionospheric measurements for ionospheric model assimilation 

    Mainul Hoque, Mohammed; Prol, Fabricio dos Santos; Hernández Pajares, Manuel; Notarpietro, Riccardo; Yuan, Liangliang; Olivares Pulido, Germán; Graffigna, Victoria; von Engeln, Axel; Marquardt, Christian (Multidisciplinary Digital Publishing Institute (MDPI), 2023-06-15)
    Article
    Open Access
    We conducted a study to assess the GNSS (Global Navigation Satellite System) Receiver for Atmospheric Sounding (GRAS) ionospheric data quality by processing Radio Occultation (RO) observations of ionospheric products. The ...

  • Real-time tomographic inversion of truncated ionospheric GNSS radio occultations 

    Olivares Pulido, Germán; Hernández Pajares, Manuel; Monte Moreno, Enrique; Lyu, Haixia; Graffigna, Victoria; Cardellach Galí, Estel; Mainul Hoque, Mohammed; Prol, Fabricio dos Santos; Notarpietro, Riccardo; García Fernández, Miquel (Multidisciplinary Digital Publishing Institute (MDPI), 2023-06-19)
    Article
    Open Access
    This paper presents a new way of combining Abel inversion and the Chapman model with a linearly increasing scale height to retrieve ionospheric electron density vertical profiles from truncated-sounding radio-occultation ...

  • Study of ionospheric bending angle and scintillation profiles derived by GNSS radio-occultation with MetOp-A satellite 

    Prol, Fabricio dos Santos; Mainul Hoque, Mohammed; Hernández Pajares, Manuel; Yuan, Liangliang; Olivares Pulido, Germán; von Engeln, Axel; Marquardt, Christian; Notarpietro, Riccardo (Multidisciplinary Digital Publishing Institute (MDPI), 2023-03-20)
    Article
    Open Access
    In this work, a dedicated campaign by MetOp-A satellite is conducted to monitor the ionosphere based on radio-occultation (RO) measurements provided by the onboard GNSS (Global Navigation Satellite System) Receiver for ...

View more