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Kauristie, Kirsti
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- PublicationRestrictedThe contribution to IHY from the COST296 Action MIERS: Mitigation of Ionospheric Effects on Radio Systems(2009-04)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;De Franceschi, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Alfonsi, Lu.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Altadill, D.; Observatorio del Ebro, Tortosa, Spain ;Bencze, P.; Hungarian Academy of Sciences, Geodetic and Geophysical Research Institute, Sopron, Hungary ;Bourdillon, A.; Institut d'Electronique et de Télécommunications de Rennes, Rennes, France ;Buresova, D.; Institute of Atmospheric Physics, Prague, Czech Republic ;Cander, L. R.; Rutherford Appleton Laboratory, Council for the Central Laboratory of the Research Councils, Oxfordshire, UK ;de la Morena, B.; Instituto Nacional de Tecnica Aerospacial, Torrejon de Ardoz, Spain ;Economou, L.; Intercollege Limassol Campus, Limassol, Cyprus ;Herraiz, M.; Universidad Complutense Madrid, Madrid, Spain ;Kauristie, K.; Finnish Meteorological Institute, Helsinki, Finland ;Lastovicka, J.; Institute of Atmospheric Physics, Prague, Czech Republic ;Pau, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Rodriguez, G.; Universidad Complutense Madrid, Madrid, Spain ;Stamper, R.; Rutherford Appleton Laboratory, Council for the Central Laboratory of the Research Councils, Oxfordshire, UK ;Stanislawska, I.; Space Research Center- Polish Academy of Science, Warsaw, Poland; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The objective of the COST296 Action MIERS (Mitigation of Ionospheric Effects on Radio Systems) is to develop an increased knowledge of the effects imposed by the ionosphere on practical radio systems, and for the development and implementation of techniques to mitigate the deleterious effects of the ionosphere on such systems (http://www.cost296.rl.ac.uk). The COST296 Community contributes to the international efforts of IHY with scientific and outreach activities as well. After the realization of a web site hosted by Istituto Nazionale di Geofisica e Vulcanologia (INGV), developed also to promote the ionospheric physics to the open public, the COST296 Community supported an initiative addressed to the pupils of the primary school of several European Countries: the realization of a school-calendar dedicated to the Sun and to the Sun-Earth connections.352 28 - PublicationOpen AccessSpace Weather Services for Civil Aviation—Challenges and Solutions(2021)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;; ; ; ; ; ; ; ; ; ; ; ; ; ;; ; ;; ; ; ; ; ; ; ; ; ; ; ;This paper presents a review on the PECASUS service, which provides advisories on enhanced space weather activity for civil aviation. The advisories are tailored according to the Standards and Recommended Practices of the International Civil Aviation Organization (ICAO). Advisories are disseminated in three impact areas: radiation levels at flight altitudes, GNSS-based navigation and positioning, and HF communication. The review, which is based on the experiences of the authors from two years of running pilot ICAO services, describes empiricalmodels behind PECASUS products and lists groundand space-based sensors, providing inputs for themodels and 24/7manualmonitoring activities. As a concrete example of PECASUS performance, its products for a post-stormionospheric F2-layer depression event are analyzed in more detail. As PECASUS models are particularly tailored to describe F2-layer thinning, they reproduce observationsmore accurately than the International Reference Ionospheremodel (IRI(STORM)), but, on the other hand, it is recognized that the service performance ismuch affected by the coverage of its input data. Therefore, more efforts will be directed toward systematic measuring of the availability, timeliness and quality of the data provision in the next steps of the service development.410 58 - PublicationRestrictedProbing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007–2009)(2008-12)
; ; ; ; ; ; ; ; ; ; ; ;Alfonsi, Lu.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia ;Kavanagh, A. J.; Space Plasma Environment and Radio Science Group, Department of Communication Systems, InfoLab 21, Lancaster University, Lancaster LA1 4WA, UK ;Amata, E.; Istituto di Fisica dello Spazio Interplanetario I.N.A.F., Via del fosso del cavaliere 100, 00133 Rome, Italy ;Cilliers, P.; Hermanus Magnetic Observatory (HMO), P.O. Box 32, Hermanus, South Africa ;Correia, E.; Instituto Nacional de Pesquisas Espaciais (INPE), São José dos Campos, Brazil and Centro de Rádio Astronomia e Astrofísica Mackenzie (CRAAM), Universidade Presbiteriana Mackenzie, Rua da Consolação 930, CEP: 01302-907 São Paulo, Brazil ;Freeman, M.; British Antarctic Survey, High Cross Madingley Road, Cambridge, UK ;Kauristie, K.; Finnish Meteorological Institute, Erik Palménin aukio 1, Helsinki, Finland ;Liu, R.; Polar Research Institute of China, Shanghai 200136, China ;Luntama, J.-P.; Finnish Meteorological Institute, Erik Palménin aukio 1, Helsinki, Finland ;Mitchell, C. N.; Department of Electrical Engineering, University of Bath, Bath BA2 7AY, UK ;Zherebtsov, G. A.; Institute of Solar-Terrestrial Physics, Siberian Branch, Russian Academy of Science, Irkutsk, Russia; ; ; ; ; ; ; ; ; ; During the International Polar Year (IPY), one area of great interest is co-coordinated, multi-instrument probing of the ionosphere at high latitudes. This region is important not only for the applications that rely upon our understanding of it, but also because it contains the footprints of processes that have their origin in the interplanetary space. Many different techniques are now available for probing the ionosphere, from radar measurements to the analysis of very low frequency (VLF) wavepaths. Combining these methods provides the ability to study the ionosphere from high in the F-region to the bottom of the D-layer. Thus, coupling processes from the magnetosphere and to the neutral atmosphere can be considered. An additional dimension is through comparisons of the response of the two polar ionospheres to similar (or the same) geomagnetic activity. With more instruments available at the South Pole inter-hemispheric, studies have become easier to accomplish such that a fuller picture of the global response to Sun–Earth coupling can be painted. This paper presents a review of the current state of knowledge in ionospheric probing. It cannot provide a comprehensive guide of the work to date due to the scale of the topic.Rather it is intended to give an overview of the techniques and recent results from some of the instruments and facilities that are a part of the IPY cluster 63—Heliosphere Impact on Geospace. In this way it is hoped that the reader will gain a flavor of the recent research performed in this area and the potential for continuing collaboration and capabilities during the IPY (2007–2009).217 34