Performance of a single-monochromator diode array spectroradiometer for the determination of actinic flux and atmospheric photolysis frequencies
Performance of a single-monochromator diode array spectroradiometer for the determination of actinic flux and atmospheric photolysis frequencies
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DOI：
10.1029/2002jd002844
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发表时间：
2003-08
期刊：
影响因子：
--
通讯作者：
G. Edwards;P. Monks
中科院分区：
文献类型：
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作者：
G. Edwards;P. Monks
[1]一种新的光谱辐射计仪器的性能的基础上的二极管阵列技术在其第一次现场部署在国际建模和测量相互比较（IPMMI）进行了评估。该仪器是一个单单色二极管阵列分光辐射计，用于测量光化通量和衍生值的j（O 1D）和j（NO2）。光谱可以在波长区域λ = 280-450 nm内以可变积分时间（对于正常操作通常为1 s）收集，并且数据可以使用国家标准和技术研究所可追踪的校准标准转换为光化通量/光解频率。这些测量的相对精度进行比较，使用类似的和对比的实验技术得到的光解频率。该仪器在比较中表现充分，但在单一单色器中杂散光抑制差的问题有可能在导出的光解频率中传播显著的误差。一个完整的错误分析连同仪器表征已经进行，并报告。还讨论了在实地使用这种仪器测量大气光解频率的可行性。
[1] The performance of a new spectroradiometer instrument based on a diode array technique during its first field deployment at the International Modeling and Measurement Intercomparison (IPMMI) has been evaluated. The instrument is a single-monochromator diode array spectroradiometer that was used to measure both actinic flux and derived values of j(O1D) and j(NO2). Spectra may be collected over the wavelength region λ = 280–450 nm at variable integration times (typically 1 s for normal operation), and data may be converted to actinic flux/photolysis frequencies using National Institute of Standards and Technology traceable calibration standards. The relative accuracy of these measurements is compared to photolysis frequencies derived using similar and contrasting experimental techniques. The instrument performed adequately in the comparison, but the problem of poor stray light rejection in the single monochromator has the potential to propagate significant errors in the derived photolysis frequencies. A full error analysis together with instrument characterization has been performed and is reported. The feasibility of using such instruments in the field for the measurement of atmospheric photolysis frequencies is also discussed.