International Joint Research on Svalbard IS Radar

斯皮斯卑尔根位于斯瓦尔巴群岛的极尖地区，这是一个科学上独特而重要的位置，太阳风粒子在这里穿透到地球的磁层和高层大气，在冬季，即使在白天，也可以通过光学和雷达技术同时进行观测。斯匹次卑尔根岛的高功率非相干散射雷达对日地科学研究具有重要意义。因此，由6个欧洲国家（芬兰、法国、德国、挪威、瑞典、联合王国）组织的欧洲非相干散射科学协会（EISCAT）和日本名古屋大学的日地环境实验室之间关于斯瓦尔巴群岛雷达的合作项目正在进行中。1991年，日本为斯瓦尔巴群岛雷达提出了相控阵型雷达，另一方面，EISCAT提出了碟形雷达。在名古屋大学和EISCAT之间的谈判之后，曾经计划在斯匹次卑尔根建造一个双基地雷达系统，该系统由两台分别位于日本和EISCAT的雷达组成。1992年，合作计划已改为日本将分享雷达系统的一部分，以便恢复由于财政限制而从EISCAT提议的原来碟形系统失去的能力。目前，基于单站系统的斯瓦尔巴德雷达的新计划正在合作中进行。

Spisbergen, Svalbard locates at the polar cusp region which is scientifically unique and important location, where the solar wind particles penetrate into the earth's magnetosphere and upper atmosphere and where sumultaneous observations by both optical and radar techniques are available during winter even in daytime. A high power IS (Incoherent Scatter) radar in Spitsbergen is quite useful for researches on solar-terrestrial sciences. Therefore, collaborative project on Svalbard radar between STEL (Solar-terrestrial Environment Laboratory), Nagoya University, Japan and EISCAT (European Incohenrent Scatter) Scientific Association organized by six European countries (Finland, France, Germany, Norway, Sweden, United Kingdom) is under progress.In 1991, Japan had proposed a phased-array type radar for Svalbard Radar and, on the other hand,EISCAT had proposed a dish type radar. Following negotiation between Nagoya University and EISCAT, once a bi-static radar system in Spitsbergen consisting of two separately located radars to be constructed respectively be Japan and EISCAT was planned. In 1992, the collaborative plan has been changed to such that Japan will share a part of the radar system in order to restore the capability lost from the original dish type system proposed by EISCAT because of a financial restriction. Now new plan of Svalbard radar based on a monostatic system is in progress under collaboration.