11:15 AM - 11:30 AM
[PEM13-07] EISCAT_3D: Recent Progress and Current Status on Japan's Contribution
Keywords:incoherent scatter radar, space weather, Arctic
EISCAT 3D is the major upgrade of the existing EISCAT mainlamd radars, with a multi-static phased array system composed of one central active (transmit-receive) site and 4 receive-only sites to provide us 50-100 times higher temporal resolution than the present system. The construction of EISCAT 3D is planned to implement by 4-staged approach, starting from the core site with half transmitting power about 5MW at Skibotn (Norway) and 2 receiving sites at Kaiseniemi (Sweden) and Karesuvanto (Finland) at the 1st stage.
The Japanese EISCAT group based at the EISCAT_3D promotion office, National Institute of Polar Research has been pursuing the opportunity to contribute in-kind to the construction of EISCAT_3D by supplying power amplifiers for the radar transmitters in cooperation with the EISCAT Headquaters and Japanese industries. The EISCAT_3D program in Japan has been successfully granted as as one of high-priority programs of the Master Plan 2014/2017 and the Roadmap 2014 program, as a part of ’Study of Coupling Processes in the Solar-Terrestrial System’ (PI: Prof. Toshitaka Tsuda, ROIS/Kyoto Univ.). Supported by these positive evaluations, National Institute of Polar Research has been submitting a funding proposal to the Ministry for EISCAT_3D, collaborating with the Institute for Space-Earth Environmental Research, Nagoya University. Since 2016, with partial fundings for development, high energy-efficient transmitter power amplifiers (SSPAs) has been produced for the engineering verification test using a test sub-array system at the EISCAT Tromso site. In this paper, we will overview the recent progress on the project including our development for the EISCAT_3D SSPAs and outlook on Japan’s national contribution to the EISCAT_3D project.