...The main functions of the satellite observation sensor system are as follows. (1) Visible and infrared spin scan radiometer (VISSR) It is sensitive to visible light of 0.5 to 0.75 μm and infrared light of 10.5 to 12.5 μm, which is less absorbed by water vapor and is suitable for temperature observation, and its resolution is 1.25 km and 5 km, respectively, at the satellite's nadir, and decreases as it moves away from the nadir. Using the satellite's 100 rotations per minute (the satellite rotates like a top to keep its attitude constant), it scans the Earth from west to east with a scanning mirror from the North Pole. ... *Some of the terms used in the description of "Visible and Infrared Rotating Scanning Radiometer" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…衛星観測用センサーシステムのおもな機能は次の通りである。(1)可視赤外回転走査放射計visible and infrared spin scan radiometer(略称VISSR(ビッサ))0.5~0.75μmの可視光と,水蒸気等による吸収が少なく温度観測に適した10.5~12.5μmの赤外光に感度を持ち,分解能は衛星直下点でそれぞれ1.25km,5kmで,直下点から離れるにつれて低下する。衛星の1分間100回の自転(衛星の姿勢を一定に保つために衛星をこまのように回転させている)を利用して,北極側から走査鏡で地球を西から東に走査する。… ※「可視赤外回転走査放射計」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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