Mostrando ítems 1-12 de 100

  • ADDTID: An alternative tool for studying earthquake/tsunami signatures in the ionosphere. Case of the 2011 Tohoku earthquake 

    Yang, Heng; Monte Moreno, Enrique; Hernández Pajares, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-13)
    Artículo
    Acceso abierto
    Traveling Ionospheric Disturbances (ADDTID) algorithm. This algorithm automatically detects and characterizes Traveling Ionospheric Disturbances (TIDs) from Global Navigation Satellite System (GNSS) measurements. Applying ...
  • A new method for ionospheric tomography and its assessment by ionosonde electron density, GPS TEC, and single-frequency PPP 

    Prol, Fabricio dos Santos; Camargo, Paulo de Oliveira; Hernández Pajares, Manuel; Honorato Muella, Marcio Tadeu de Assis (Institute of Electrical and Electronics Engineers (IEEE), 2018-01-01)
    Artículo
    Acceso restringido por política de la editorial
    A new tomographic method was developed with the main goal of mapping the ionosphere in the region of Brazil. The ionospheric background was estimated based on ionosonde and radio-occultation measurements to overcome the ...
  • Spatial and temporal features of the topside ionospheric electron density by a new model based on GPS radio occultation data 

    Prol, Fabricio dos Santos; Hernández Pajares, Manuel; Camargo, Paulo de Oliveira; Honorato Muella, Marcio Tadeu de Assis (2018-03)
    Artículo
    Acceso abierto
    A new method for probing the spatial and temporal features of the topside ionosphere is presented. The Vary-Chap model given by linear functions was used to discover and report features of the topside scale height and its ...
  • The Barcelona ionospheric mapping function (BIMF) and its application to northern mid-latitudes 

    Lyu, Haixia; Hernández Pajares, Manuel; Nohutcu, Metin; García Rigo, Alberto; Zhang, Zhongzhi; Liu, Jingnan (2018-07-01)
    Artículo
    Acceso restringido por política de la editorial
    A simple way of improving the Global Navigation Satellite Systems (GNSS) slant ionospheric correction from Vertical Total Electron Content (VTEC) models is presented. In many GNSS applications, a mapping function is required ...
  • Tomographic imaging of ionospheric plasma bubbles based on GNSS and radio occultation measurements 

    Prol, Fabricio dos Santos; Hernández Pajares, Manuel; Honorato Muella, Marcio Tadeu de Assis; Camargo, Paulo de Oliveira (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10-01)
    Artículo
    Acceso abierto
    Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles. In contrast, the correct reproduction ...
  • Precise ionospheric electron content monitoring from single- frequency GPS receivers 

    Hernández Pajares, Manuel; Roma Dollase, David; García Fernández, Miquel; Orús Pérez, Raul; García Rigo, Alberto (2018-10-01)
    Artículo
    Acceso abierto
    The number of existing global positioning system (GPS) single-frequency receivers continues growing. More than 90% of GPS receivers are implemented as low-cost single-frequency chipsets embedded in smartphones. This provides ...
  • Coincident observations by the Kharkiv IS radar and ionosonde, DMSP and Arase (ERG) satellites, and FLIP model simulations: implications for the NRLMSISE-00 hydrogen density, plasmasphere, and ionosphere 

    Kotov, Dmytro; Richards, Philip G.; Truhlík, Vladimír; Hernández Pajares, Manuel (2018-08)
    Artículo
    Acceso abierto
    This paper reports the results of ionosphere and plasmasphere observations with the Kharkiv incoherent scatter radar and ionosonde, Defense Meteorological Satellite Program, and Arase (ERG) satellites and simulations with ...
  • Detection and description of the different ionospheric disturbances that appeared during the solar eclipse of 21 August 2017 

    Yang, Heng; Monte Moreno, Enrique; Hernández Pajares, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10-30)
    Artículo
    Acceso abierto
    This work will provide a detailed characterization of the travelling ionospheric disturbances (TIDs) created by the solar eclipse of 21 August 2017, the shadow of which crossed the United States from the Pacific to the ...
  • Assessment of St. Patrick's Day 2015 Geomagnetic storm impact on EGNOS 

    Hernández Pajares, Manuel; Béniguel, Yannick; Orús Pérez, Raul; Prieto Cerdeira, Roberto; García Rigo, Alberto; Kinrade, J; Kauristie, Kirsti; Schlueter, Stefan; Serant, Damien; Krankowski, Andrzej; Secretan, Hugues; Sampedro Casis, Rodrigo; Prats Menéndez, Xavier (European Space Agency (ESA), 2015)
    Comunicación de congreso
    Acceso restringido por política de la editorial
    The Monitor project has been designed to monitor ionospheric events that would allow evaluating its impact on European GNSS Systems. It includes a network of ionospheric scintillation monitoring stations in various ...
  • TEC forecasting based on manifold trajectories 

    Monte Moreno, Enrique; García Rigo, Alberto; Hernández Pajares, Manuel; Yang, Heng (Multidisciplinary Digital Publishing Institute (MDPI), 2018-06-22)
    Artículo
    Acceso abierto
    In this paper, we present a method for forecasting the ionospheric Total Electron Content (TEC) distribution from the International GNSS Service’s Global Ionospheric Maps. The forecasting system gives an estimation of the ...
  • GNSS transpolar earth reflectometry exploriNg system (G-TERN): mission concept 

    Cardellach Galí, Estel; Wickert, Jens; Baggen, Rens; Camps Carmona, Adriano José; Hernández Pajares, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018-03-09)
    Artículo
    Acceso abierto
    The global navigation satellite system (GNSS) Transpolar Earth Reflectometry exploriNg system (G-TERN) was proposed in response to ESA's Earth Explorer 9 revised call by a team of 33 multi-disciplinary scientists. The ...
  • Recent activities of IAG working group “Ionosphere Prediction” 

    Erdogan, Eren; Hoque, Mainul; García Rigo, Alberto; Cueto, M.; Schmidt, Michael; Jakowski, Norbert; Berdermann, Jens; Monte Moreno, Enrique; Hernández Pajares, Manuel (2018)
    Comunicación de congreso
    Acceso abierto
    Ionospheric disturbances pose, for instance, an increasing risk on economy, national security, satellite and airline operations, communications networks and the navigation systems. Constructing ...