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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク International Reference Ionosphere ： ウィキペディア英語版 International Reference Ionosphere International Reference Ionosphere (IRI) is a common permanent scientific project of the Committee on Space Research and the International Union of Radio Science started 1968/69. It is the international standard empirical model for the terrestrial ionosphere since 1999. For a specified geographic location, time, and date, the IRI provides average monthly values for electron density, electron temperature and ion temperature, and the molecular composition of the ions in the range of altitudes from 50 km to 2000 km. The latest standard is IRI-2012.〔 == History == Karl Rawer, first chairman of the ''URSI/COSPAR Task group on the IRI'' (1968-`84) specified as goal of the IRI to establish a (monthly) average model of the terrestrial ionosphere based on reliably measured data obtained with ground- and space-based methods. Contradictions between these had to be resolved in critical discussions. After a decade filled with data collection a first set of tables was given out in 1978. PC-codes in ALGOL and Fortran followed. 1986 the code became available on Floppy disk, later in the Web. It is yearly improved according to the results obtained at the meetings of the task group.Since 1999 the IRI is "International Standard" for the terrestrial ionosphere. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「International Reference Ionosphere」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.