Arts - Arts

Japanese: アーツ - あーつ
Arts - Arts


[Resource Exploration]
Resource satellites use the principle that by taking various photographic images of different wavelengths of light from an artificial satellite, and comparing these with the characteristics of the distribution (spectrum) of wavelengths of light emitted by materials, the state of the Earth's surface can be known. Resource satellites were launched somewhat later than other practical satellites, with the United States launching Arts in 1972, followed by Landsat 2 in 1975, and the image data obtained is received by ground stations set up in each country and made available for local use. They are used in a wide range of important fields, such as monitoring agricultural crops and forest conditions, collecting geological, hydrological and oceanographic data, and creating maps, but there are still issues regarding the legality of obtaining information from the skies of other countries, which, along with the targets of broadcasting satellites, is one of the issues in space law.

*Some of the terminology that refers to "Arts" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[資源探査]
 資源衛星は人工衛星から光の波長ごとにいろいろな写真画像をとり,それを物質の出す光の波長の分布(スペクトル)の特性と比較することによって地表の状態を知ることができる原理を利用している。資源衛星は他の実用衛星に比べるとややおくれて,アメリカでは1972年にアーツを,続いて75年2号をランドサットという名称で打ち上げ,得られた画像のデータは各国に設けられた地上局で受信して,その地元での利用に供されている。農業の作柄,森林の状態などの監視,地質学・水理学・海洋学のデータ収集,地図の作成など幅広い重要な分野にわたって利用されているが,他国の上空から情報を得ることの合法性といった点で問題を残しており,放送衛星の放送対象とともに宇宙法の争点の一つとなっている。…

※「アーツ」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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