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VERIFICATION OF GMS-5 VISSR INFRARED DETECTORS

机译:GMS-5 VISSR红外探测器的验证

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摘要

It is essential to have qualitative information of a satellite instrument, images observed by the instrument, etc. The purpose of this presentation is to verify the degree of infrared (IR) detectors deterioration of the Visible Infrared Spin Scan Radiometer (VISSR) on the fifth Geostationary Meteorological Satellite (GMS-5). The International Satellite Cloud Climatology Project (ISCCP) calibration results and GMS-5 VISSR/IR raw counts of infrared channels were statistically studied. The degradation and uncertainty (noise level) were estimated from 1995 to 2001. As the result, the three GMS-5 infrared channels show no significant trend over the study period except the unstable conditions of the first year. In the end, a comparison between sea surface temperature (SST) observations and brightness levels at cloud-free points is suggested as a possible verification technique.
机译:拥有卫星仪器的定性信息,仪器观测到的图像等至关重要。本演示文稿的目的是在第五个步骤中验证可见光自旋扫描辐射计(VISSR)的红外(IR)检测器的劣化程度。对地静止气象卫星(GMS-5)。对国际卫星云气候计划(ISCCP)校准结果和GMS-5 VISSR / IR红外通道原始计数进行了统计研究。估计了从1995年到2001年的退化和不确定性(噪声水平)。结果,除了第一年的不稳定状况外,三个GMS-5红外通道在研究期间没有显示出明显的趋势。最后,建议将海表温度(SST)观测值与无云点的亮度水平进行比较,作为一种可能的验证技术。

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