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首页> 外文会议>Conference on calibration of passive remote observing optical and microwave instrumentation >Evaluation of the NOAA-11 solar backscatter ultraviolet radiometer Mod 2 (SBUV/2): inflight calibration
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Evaluation of the NOAA-11 solar backscatter ultraviolet radiometer Mod 2 (SBUV/2): inflight calibration

机译：NOAA-11太阳能反向散射器紫外线辐射计MOD 2（SBUV / 2）的评估：机动校准

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The second SBUV/2 was successfully launched on the polar orbiting NOAA-11 spacecraft as a continuation of the NIMBUS family of backscatter ultraviolet monochromators used to measure long-term ozone trends. The SBUV/2 is capable of measuring both total and vertical profile ozone concentrations with a long-term accuracy goal of one percent. In order to insure this accuracy and reliability, an extensive inflight calibration system was designed as part of the instrument. The calibration system's primary goal is to characterize the time and wavelength dependent degradation of the ground aluminum diffuser plate used to reflect solar radiation into the instrument's field-of-view. The NOAA-11 calibration system is a redesign of a similar system incorporated into the NOAA-9 SBUV/2, which did not perform to an acceptable level. This paper presents an analysis both of the NOAA-11 calibration system performance and of the changes of the solar diffuser reflectivity as measured by this system. In particular, after two years of inflight operation, the NOAA-11 system's performance is either on par or exceeding preflight expectations with none of the NOAA-9 problems evident. The solar diffuser displays a wavelength-dependent degradation of about 0.5% per year at 404 nm to about 2% at 185 nm which is consistent with previous diffuser reflectivity changes observed on NIMBUS-7 and NOAA-9.
机译：第二个SBUV / 2在极性轨道NOAA-11航天器上成功推出，作为云脐带紫外线单色器的延续的云峰家族，用于测量长期臭氧趋势。 SBUV / 2能够测量总和垂直型材臭氧浓度，长期精度目标为百分之一。为了确保这种准确性和可靠性，广泛的机电校准系统被设计为仪器的一部分。校准系统的主要目标是表征用于将用于将太阳辐射反射到仪器视野中的地面铝扩散器板的时间和波长依赖性降解。 NOAA-11校准系统是一种掺入NOAA-9 SBUV / 2中的类似系统的重新设计，其没有表现为可接受的水平。本文介绍了NOAA-11校准系统性能和该系统测量的太阳漫射器反射率的变化。特别是，经过两年的机电操作，NOAA-11系统的表现是对PAR或超出预期的预期，没有任何NOAA-9的可能性。太阳漫射器在185nm下显示每年约0.5％的波长依赖性降解，其404nm至约2％，这与在尼姆斯-7和NOAA-9上观察到的先前的扩散器反射率变化一致。

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