Dr
Ronald Van der Linden
(Royal Observatory of Belgium)
04/12/2017, 10:35
This is an overview of the The Solar-Terrestrial Center of Excellence (STCE) activities.
The Solar-Terrestrial Centre of Excellence is a scientific project which aims at the creation of an international expert centre and the valorization of Solar-Terrestrial research and services. The STCE clusters the know-how of 3 Belgian Federal institutes: Royal Observatory of Belgium ROB, Royal...
Dr
Giorgiana De Franceschi
(INGV)
04/12/2017, 10:45
Presentation to be given during the one day workshop organized at ROB, reporting on the state of the art of the GRAPE Expert Group.
Dr
Lucilla Alfonsi
(Istituto Nazionale di Geofisica e Vulcanologia)
04/12/2017, 11:00
While the users of radio devices often consider the atmospheric contribution to their radio measurements to be a source of error that needs to be corrected, deleted, or mitigated, atmospheric scientists who rely on radio techniques have a common interest: to isolate the atmospheric contribution and use it in the study of the near-earth space environment.
Currently, several instruments working...
Prof.
Manuel Hernández-Pajares
(UPC-IonSAT)
04/12/2017, 11:15
We present the Global Navigation Satellite Systems (GNSS) ionospheric monitoring techniques developed by the authors and implemented in terms of associated products, which are being computed globally, in real-time and rapid latencies. We will focus on the potential contributions to the improvement of GNSS performance and Ionospheric Science in polar regions, in terms of Space Weather...
Dr
Luca Spogli
(Istituto Nazionale di Geofisica e Vulcanologia)
04/12/2017, 11:45
INGV operates a network of GNSS receivers acquiring data at 50 Hz incorporating a firmware especially modified to provide several parameters useful to monitor the perturbations of the high latitudes upper atmosphere. In particular, the first GPS receiver was installed in 2003 at Ny-Ålesund (Svalbard Island, 78°55’N 11°55’E). Currently, three receivers are operating at Ny-Ålesund, recording...
Dr
Francesco de Gasperin
(Leiden University)
04/12/2017, 12:35
The Low-Frequency Array (LOFAR) is a hierarchical collection of thousands of dipole antennas which make it the most sensitive radio interferometer operating at low-frequencies ($10-240$ MHz). His main goal is low-frequency radio astronomy. LOFAR antennas are grouped into stations (aperture arrays capable of multi-beam forming) each about the size of a football field. LOFAR has 38 stations in...
Dr
Fabien Darrouzet
(Royal Belgian Institute for Space Aeronomy (IASB-BIRA))
04/12/2017, 12:50
In January-February 2016, we have installed a compact magnetic antenna augmented with data processing equipment at the Belgian Princess Elisabeth station (71°57’S - 23°20’E; 1380 m altitude; L$\sim$5.5R$_{E}$). This VLF antenna is composed of two search coils in a waterproof plastic box, inside a wooden thermal insulated box, fixed on the top of a wooden table. This antenna records VLF (Very...
Dr
Eric Pottiaux
(Royal Observatory of Belgium (ROB))
04/12/2017, 14:00
Both institutes, the Royal Observatory of Belgium (ROB) and the Royal Meteorological Institute (RMI) of Belgium, are monitoring and studying the atmospheric water vapour using several ground-based (GNSS), satellite-based (GOME,SCHIAMACHY, GOME-2, AIRS), and in-situ (radiosonde) measuring techniques but also atmospheric models (ERA-interim, ALARO). These activities mainly aim at improving...
Dr
Giovanni Muscari
(INGV)
04/12/2017, 14:15
Ground-based microwave remote sensing is extremely useful for monitoring the atmospheric composition and physical properties. It is effective during both daytime and nighttime, in clear sky or mild overcast weather, and is therefore particularly suited for observing the Polar regions where darkness (or direct sunlight) lasts throughout an entire winter (summer) season. Most techniques in this...
Dr
Georg Heygster
(University of Bremen, Germany)
04/12/2017, 14:30
Atmospheric water vapor is an important constituent of the global hydrological cycle; it transports humidity and heat and it is the most important greenhouse gas. While over open ocean total precipitable water vapor (PW) is routinely surveyed with satellite microwave imagers like SSMI(S) and AMSR-E/2, large-scale observations in polar regions with low water vapor burden are much more...
Mr
Joshua Albert
(Leiden Observatory)
04/12/2017, 14:45
The spatially and temporally varying electron density of the ionosphere causes complex distortions to passing radio wavefronts, becoming dominant at frequencies $\leq 1$ GHz.
Using a probabilistic description of the system we apply Bayesian inference to study and derive the phase distortions of radio astronomical data in multiple directions.
The relative improvement to image quality is...
Dr
Hervé Lamy
(Royal Belgian Institute for Space Aeronomy)
04/12/2017, 15:00
I will review the importance of carrying out radio or radar observations of meteors from South polar regions. From an astronomical point of view, totally different radiants can be observed than with radars at intermediate latitudes. From a space weather perspective, this provides complementary observations to build a more complete dust risk impact model. For atmospheric applications,...
Dr
Andriy Zalizovski
(Institute of Radio Astronomy, National Academy of Sciences of Ukraine)
04/12/2017, 15:15
Ionospheric sounding, ozone and geomagnetic measurements were started at Ukrainian Antarctic station (UAS) Akademik Vernadsky (until 1996 British base Faraday) since late 50-th of previous century. The ELF monitoring of global lightning activity as well as Schumann, ionospheric Alfven and magnetospheric resonators were begun at 2000. During last decade we are use the GNSS-TEC technique for...
Dr
Sergio Dasso
(Instituto de Astronomía y Física del Espacio (IAFE), Argentina)
04/12/2017, 15:50
The LAGO (LAGO: Latin American Giant Observatory) project is a collaborative network formed by eleven countries (Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guatemala, Mexico, Peru, Spain, and Venezuela). The network of WCDs has nodes at sites with different rigidity cut-offs and different altitudes.
One of the aims of LAGO is to study the flux of the secondary particles at ground...
Dr
Daniel Whiter
(University of Southampton), Dr
Joshua Chadney
(University of Southampton)
04/12/2017, 16:05
The aurora can cause significant localised changes in the chemistry and climate of the neutral and ionised upper atmosphere. Electric currents associated with auroral features heat the atmosphere, and auroral particle precipitation ionises and excites the neutral species present. The aurora is often highly dynamic and structured on multiple scales, and thus the associated electric field is...
Dr
Dominique De Rauw
(Centre Spatial de Liège)
04/12/2017, 16:20
Basis concepts of SAR interferometry (InSAR) will be presented, stressing problems related to atmosphere and/or ionosphere-induced artefacts. InSAR applications related to the cryosphere study will be presented.