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(接上期)在“水”卫星上的6台遥感器中有5台是大气探测器,惟独中分辨率成像光谱仪是一台多功能遥感器,可用于大气、海洋和陆地观测。它既能对目标成像,又可以测量其光谱特性,但波段不连续。其地面分辨率有250米、500米、1000米三档,仪器绝对辐射精度5%,在地面分辨率为1000米时,信噪比≥500,地面覆盖周期2天。根据“地球观测系统”计划,在“土”和“水”卫星以及后继卫星上都有中分辨率成像光谱仪,以便对全球大气、海洋、陆地进行长周期(15～20年)的观测。
(Continued) Five of the six remote sensors on the “Water” satellite are atmospheric detectors, while the NDV imaging spectrometer is a multi-functional remote sensor that can be used for atmospheric, oceanographic and terrestrial observations. It can not only image the target, but also measure its spectral characteristics, but the band is not continuous. The ground resolution of 250 meters, 500 meters, 1000 meters third gear, the absolute irradiance of 5% of the instrument, the resolution of 1000 meters in the ground, the signal to noise ratio ≥ 500, the ground cover cycle 2 days. According to the Earth Observation System, a medium-resolution imaging spectrometer is available on both earth and subsequent satellites for long-term global atmospheric, oceanic and terrestrial (15-20 Year) observations.