Pissulla D, Seckmeyer G, Cordero R R, Blumthaler M, Schallhart B, Webb A, Kift R, Smedley A, Bais A F, Kouremeti N, Cede A, Herman J, Kowalewski M
Institute of Meteorology and Climatology, Leibniz Universität Hannover, Germany.
Photochem Photobiol Sci. 2009 Apr;8(4):516-27. doi: 10.1039/b817018e. Epub 2009 Feb 9.
A variety of instruments have been developed over the past 50 years to measure spectral radiance in absolute units at UV and visible wavelengths with high spectral resolution. While there is considerable experience in the measurement of spectral irradiance, less emphasis has been given to the reliable measurement of spectral radiance from ground observations. We discuss the methodology and calibration procedures for five instruments capable of making such measurements. Four of these instruments are based on double monochromators that scan each wavelength in turn, and one is based on a single monochromator with a charged coupled device (CCD) allowing the recording of all wavelengths simultaneously. The measured spectral radiance deviates between 3% and about 35% depending on the instruments. The results are compared with radiative transfer calculations when the aerosol characteristics of the atmosphere are known.
在过去50年里，人们开发了各种各样的仪器，用于在紫外和可见波长下以高光谱分辨率测量绝对单位的光谱辐射率。虽然在光谱辐照度测量方面有相当丰富的经验，但对地面观测光谱辐射率的可靠测量关注较少。我们讨论了五种能够进行此类测量的仪器的方法和校准程序。其中四种仪器基于双单色仪，依次扫描每个波长，另一种基于带有电荷耦合器件（CCD）的单单色仪，可同时记录所有波长。根据仪器不同，测量的光谱辐射率偏差在3%到约35%之间。当大气气溶胶特征已知时，将结果与辐射传输计算结果进行比较。
