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首页> 外文会议>Calibration of Passive Remote Observing Optical and Microwave Instrumentation >Enhancements to the radiometric calibration facility for the Clouds and the Earth's Radiant Energy System instruments
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Enhancements to the radiometric calibration facility for the Clouds and the Earth's Radiant Energy System instruments

机译：增强了云层和地球辐射能系统仪器的辐射校准设施

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Abstract: The Earth Radiation Budget Experiment (ERBE) instruments, developed by NASA's Langley Research Center and TRW, were first launched on the Earth Radiation Balance Satellite (ERBS) on October 5, 1984, and launched subsequently on NOAA-9 and NOAA-10. The radiometric calibration of ERBE instruments was performed at TRW in a cryogenic vacuum chamber developed specifically for that purpose. During calibration each instrument was mounted on a carousel located at the center of the chamber. Broadband calibration sources covering the wavelength range from 0.3 $mu@m to $GRT@50 $mu@m were located around the chamber perimeter. The required absolute radiometric error bounds for the ERBE scanner instruments were $POM@3.5% in the shortwave (0.3 $mu@m to 3.5 $mu@m), $POM@2.0% in the longwave (5 $mu@m to $GRT@50 $mu@m), and $POM@1.7% in the total (0.3 $mu@m to $GRT@50 $mu@m) bands. The performance of this facility is being enhanced significantly in preparation for calibration of the Clouds and the Earth's Radiant Energy System (CERES) instruments. Absolute radiometric calibration error bounds for the CERES instrument are $POM@1% in the shortwave band and $POM@0.5% longwave and total bands. Enhancements include a new blackbody source, a complete redesign of the shortwave reference source, and a new cryogenic active cavity radiometer (ACR) developed by Cambridge Research and Instrumentation, Inc. The ACR will be used to transfer calibration from the longwave blackbody source to the shortwave reference source. In addition, the master reference blackbody used as the radiometric standard for calibrating ERBE and space simulation equipment including LN$-2$/ cooled space references and two albedo plates for Earth simulation are being upgraded.!
机译：摘要：由美国国家航空航天局（NASA）的兰利研究中心和TRW开发的地球辐射预算实验（ERBE）仪器于1984年10月5日首次在地球辐射平衡卫星（ERBS）上发射，随后在NOAA-9和NOAA-10上发射。 。 ERBE仪器的辐射校准是在TRW专门为此目的开发的低温真空室内进行的。在校准期间，每台仪器都安装在位于腔室中央的转盘上。围绕腔室周边设置了波长校准范围为0.3μmu@ m至$ GRT @ 50 $ mu @ m的宽带校准源。 ERBE扫描仪仪器所需的绝对辐射误差范围在短波中为$POM@3.5%（0.3 $ mu @ m至3.5 $ mu @ m），在长波中为$POM@2.0%（5 $ mu @ m至m $ GRT @ 50 $ mu @ m）和$POM@1.7%，总计（0.3 $ mu @ m至$ GRT @ 50 $ mu @ m）波段。在准备校准云和地球辐射能系统（CERES）仪器时，该设施的性能得到了显着提高。 CERES仪器的绝对辐射校准误差范围在短波波段为$ POM @ 1％，在长波波段和总波段为$POM@0.5%。增强功能包括新的黑体源，短波参考源的完全重新设计以及由剑桥研究与仪器公司开发的新的低温有源腔辐射计（ACR）。该ACR将用于将校准从长波黑体源传输到仪器。短波参考源。此外，用于校准ERBE和空间模拟设备（包括LN $ -2 $ /冷却空间参考和两个用于地球模拟的反照板）的辐射标准的主要参考黑体正在升级！

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