1Informatique, Electromagnétisme, Electronique, Analyse numérique (IEEA), Courbevoie, 92400, France
2University of Warmia and Mazury, Olsztyn, Poland
3UPC-IonSat, Universitat Politècnica de Catalunya, Barcelona, 08034, Spain
4Agence pour la sécurité de la navigation aérienne en Afrique et à Madagascar (ASECNA), Dakar, Senegal
5International Center for Theoretical Physics (ICTP), Trieste, 34014, Italy
6European Space Agency/European Space Research and Technology Center (ESA/ESTEC), Noordwijk, 2201 AZ, the Netherlands
7Centre National d'Etudes Spatiales (CNES), Toulouse, 31401, France
8Thales Alenia Space France, Toulouse, 31037, France
9European Space Agency/EGNOS Project Office (ESA/EPO), Toulouse, 31401, France
10Deutsches Zentrum für Luft- und Raumfahrt (DLR), Neustrelitz, 17235, Germany
Received: 31 Jul 2016 – Revised: 23 Jan 2017 – Accepted: 01 Feb 2017 – Published: 13 Mar 2017
Abstract. The ESA MONITOR network is composed of high-frequency-sampling global navigation satellite systems (GNSS) receivers deployed mainly at low and high latitudes to study ionosphere variability and jointly with global GNSS data and ionospheric processing software in support of the GNSS and its satellite-based augmentation systems (SBAS) like the European EGNOS. In a recent phase of the project, the network was merged with the CNES/ASECNA network and new receivers were added to complement the latter in the western African sector. This paper summarizes MONITOR, presenting two case studies on scintillations (using almost 2 years of data measurements). The first case occurred during the major St. Patrick's Day geomagnetic storm in 2015. The second case study was performed in the last phase of the project, which was supported by ESA EGNOS Project Office, when we paid special attention to extreme events that might degrade the system performance of the European EGNOS.
Béniguel, Y., Cherniak, I., Garcia-Rigo, A., Hamel, P., Hernández-Pajares, M., Kameni, R., Kashcheyev, A., Krankowski, A., Monnerat, M., Nava, B., Ngaya, H., Orus-Perez, R., Secrétan, H., Sérant, D., Schlüter, S., and Wilken, V.: MONITOR Ionospheric Network: two case studies on scintillation and electron content variability, Ann. Geophys., 35, 377-391, doi:10.5194/angeo-35-377-2017, 2017.