REMOTE RADIO SOUNDING OF THE IONOSPHERE (ION-2014)

    November 12 14, 2014. Norwegian Ukrainian School Conference Remote Radio Sounding of the Ionosphere (ION-2014) was held in Tromse on the basis of UiT The Arctic University of Norway. The conference was attended by over 20 scientists from Norway, Ukraine and USA. Conference program.

    During the conference 21 lecture and 6 student reports were presented.

    November 12, 2014 (1-st day of conference). Opening cermony. Welcoming speeches of Torbjorn Eltoft (Instituttleder, Department of Physics and Technology, UiT), Prof. C. La Hoz (Project coordinator, UiT). Scientific secretary of department of physics and astronomy of National Academy of Science Dr. D. Tarashchenko made a welcome speech from Ukrainian scientists. Later he published an article in newspaper Svit (47-48 (843-844) december 2014. Scientific lectures and student reports were also presented.

    November 13, 2014 (2-nd day of conference). External Session at the EISCAT observatory. Tour to the research facilities located in Ramfjordmoen. Training in processing of the data collected during the students campaign and calculating the characteristic of the ionosphere. Working with Madrigal and other Internet-accessible databases. Discussing the results with Norwegian and Ukrainian scientists.

    November 14, 2014 (3-rd day of conference). The excursion around the UiT campus, visit to the University library, scientific lectures and student reports.

    November 17 19, 2014. Educational student EISCAT experiment.

    The purpose of the experiments is to train students and young scientists taking part in the School-Conference Remote Radio Sounding of the Ionosphere (ION-2014) which was organized by UiT The Arctic University of Norway , Norwegian Centre for International Cooperation in Education, Institute of Ionosphere NAS MES Ukraine, Institute of Radio Astronomy, EISCAT Scientific Association. The students of this School were trained in as many aspects of the EISCAT radar as possible at the Ramfjord site, in understanding the radar experiments and data acquisition, in running experiments and analyzing the recorded data. This experiment also included coordinated runs of EISCAT heater and IS radar near Kharkiv (Ukraine) for investigating excitation of different types of waves in the ionosphere. The other purpose of the experiment is studying the scattering of signals from the EISCAT heater at ionospheric irregularities produced by the heater radiation itself. To that end we have monitored Doppler spectra of the heater signals at several greatly dispersed receiving sites, including observation point at Ukrainian Antarctic Station. Photos.

    Describing of instruments.

    • The EISCAT UHF radar operates in the 931 MHz band with a peak transmitter power of more than 2.0 MW and 32 m, fully steerable parabolic dish antennas. The transmitter and one receiver are in Tromso (Norway). Receiving sites are also located near Kiruna (Sweden) and Sodankyla (Finland), allowing continuous tri-static measurements to be made.
    • The monostatic VHF radar in Tromso operates in the 224 MHz band with a peak transmitter power of 2 x 1.5 MW and a 120 m x 40 m parabolic cylinder antenna, which is subdivided into four sectors. It can be steered mechanically in the meridional plane from vertical to 60 north of the zenith; limited east-west steering is also possible using alternative phasing cables.
    • EISCAT-Heating operated by the European Incoherent Scatter Scientific Association (EISCAT) at Ramfjordmoen near Tromso in Norway, capable of transmitting 1.2 MW or over 1 GW - An ionospheric heater, or an ionospheric HF pump facility, is a powerful radio wave transmitter with an array of antennas which is used for research of plasma turbulence, the ionosphere and upper atmosphere. These transmitters operate in the high frequency (HF) range (3-30 MHz) at which radio waves are reflected from the ionosphere back to the ground. With such facilities a range of plasma turbulence phenomena can be excited in a semi-controlled fashion from the ground, during conditions when the ionosphere is naturally quiet and not perturbed by for example aurora. This stimulus-response type of research complements passive observations of naturally excited phenomena to learn about the ionosphere and upper atmosphere.