Feasibility Study for the International Equatorial Radar

这是一个在印度尼西亚寻找赤道雷达候选地点的实地研究方案，实地研究是与印度尼西亚技术评估和应用机构(BPP Tekologi)、印度尼西亚国家航空航天研究所(LAPAN)和日本-印度尼西亚科学技术论坛(JIF)合作进行的。6月19日至7月2日，、加藤、福考、住友、津田、山中、中村等人访问印尼，寻找赤道雷达的候选选址。根据BPPT、Lapan和JIF进行的预调查(6月22日至26日)的结果，他们访问了西苏门答腊省巴东和Bukittinggi附近的候选地点。他们在武吉丁基西北19公里处的科托塔邦找到了一个很好的候选地点。在旱季进行了几天的气象观测和无线电噪声测量作为环境研究。Tsuda和Nakamura在7月25日至8月1日访问了Bukittinggi附近的候选地点进行环境研究。他们进行了65小时的无线电噪声测量，发现除了雷电产生的噪声外，无线电环境对雷达来说是合适的。福岛于9月9日至15日访问了雅加达，并与BPPT和LAPAN讨论了在Bukittinggi附近的实地考察结果。福尾、津田、山中、山本、广田、福西、田中和近藤于9月27日至10月17日访问了武吉丁基，并在雨季检查了环境。Yamanaka和Yamamoto负责气象观测和无线电噪声测量。他们发现，即使在雨季，候选地点的状况也很好。这项计划的结果被公布为《关于在印度尼西亚地区建立赤道雷达的建议》。一些小文章发表在日本气象学会日文期刊《Tenki》上(Yamanaka and Nakamura，1989，Vol.35，p.650；Yamanaka等，1990，印刷中)。

This is a program for field research to find the candidate site of the Equatorial Radar in Indonesia, The field research was conducted in cooperation with Indonesian Agency for Assessment and Application of Technology (BPP Teknologi), Indonesian National Institute of Aeronautics and Space (LAPAN), and Japan-Indonesia Science Technology Forum (JIF).1. In 19 June-2 July 1989, Kato, Fukao, Sumi, Tsuda, Yamanaka, and Nakamura visited Indonesia to find the candidate site of the Equatorial Radar. Following the results of the Pre-survey (22-26 June) operated by BPPT, LAPAN, and JIF, they visited the candidate sites near Padang and Bukittinggi in West Sumatera. They found a good candidate place at Kototabang which is 19 km north west of Bukittinggi. the meteorological observations and the measurements of the radio noise were operated for several days as an environment research in the dry season.2. Tsuda and Nakamura visited the candidate site near Bukittinggi in 25 July-1 August for the environmental research. They operated the radio noise measurement for 65 hours, and found that the radio environment is suitable for the radar except for the noise generated by thunders.3. Fukao visited Jakarta in 9-15 September, and discussed the results of field research near Bukittinggi with BPPT and LAPAN.4. Fukao, Tsuda, Yamanaka, Yamamoto, Hirota, Fukunishi, Tanaka, and Kondo visited Bukittinggi in 27 September-17 October, and checked the environment in the rainy season. Yamanaka and Yamamoto operated the meteorological observations and radio noise measurements. They found that the candidate site is in good condition even in the rainy season.The results of this program were published as "Proposal for the Establishment of the Equatorial Radar in the Indonesian Region". Some small articles are published in "Tenki", the journal (Japanese) of the Meteorological Society of Japan (Yamanaka and Nakamura, 1989, Vol.35, p.650; Yamanaka etal., 1990, in press).