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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 Stevenson screen ： ウィキペディア英語版 Stevenson screen A Stevenson screen or instrument shelter is an enclosure to shield meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them.〔(【引用サイトリンク】title=Stevenson Screen )〕 It forms part of a standard weather station. The Stevenson screen holds instruments that may include thermometers (ordinary, maximum/minimum), a hygrometer, a psychrometer, a dewcell, a barometer and a thermograph. Stevenson screens may also be known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermoscreen or a thermometer screen. Its purpose is to provide a standardised environment in which to measure temperature, humidity, dewpoint and atmospheric pressure. ==History== It was designed by Thomas Stevenson (1818–1887), a British civil engineer and father of the author Robert Louis Stevenson. Stevenson’s development of his small thermometer screen with double louvered walls on all sides and no floor was reported in 1864.〔New Description of Box for Holding Thermometers, Thomas C.E. Stevenson, Journal of Scottish Meteorological Society, Vol.1, page122, June 1864〕 After comparisons with other screens in the UK, Stevenson’s original design was modified.〔A History of the Thermometer and Its Uses in Meteorology, W.E. Knowles Middleton, Johns Hopkins Press, Baltimore, 1966〕 The modifications by Mawley of the Royal Meteorological Society in 1884 included a double roof, a floor with slanted boards, and a modification of the double louvers. This design was adopted by the British Meteorological Office and eventually other national services such as Canada. The national services developed their own variations such as the single louvered Cotton Region design in the United States.〔The Effect of Thermometer Screen Design on the Observed Temperature, W.R. Sparks, WMO-315, World Meteorological Society, Geneva, 1972〕 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「Stevenson screen」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.