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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >ACTINOMETRIC AND RADIOMETRIC MEASUREMENT AND MODELING OF THE PHOTOLYSIS RATE COEFFICIENT OF OZONE TO O(D-1) DURING MAUNA LOA OBSERVATORY PHOTOCHEMISTRY EXPERIMENT 2
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ACTINOMETRIC AND RADIOMETRIC MEASUREMENT AND MODELING OF THE PHOTOLYSIS RATE COEFFICIENT OF OZONE TO O(D-1) DURING MAUNA LOA OBSERVATORY PHOTOCHEMISTRY EXPERIMENT 2

机译：莫纳洛阿观测光化学实验中臭氧对O（D-1）光解速率系数的光度法和放射线测量及建模

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The in situ photolysis rate coefficient of O-3 to O(D-1) has been measured at Mauna Loa Observatory using a new actinometric instrument based on the reaction of O(D-1) with N2O and with a hemispherical radiometer, One minute averaged photolysis rate coefficients were determined with an overall uncertainty of approximately +/- 11% at the 1 sigma level for the actinometer and +/- 15% at the 1 sigma level for the radiometer, Over 120 days of data were collected with varying cloud cover, aerosol loadings, and overhead ozone representing the first set of long term measurements. Clear sky solar noon values vary between approximately 3.0 x 10(-5) and 4.5 x 10(-5) sec(-1). Modeling of the photolysis rate coefficients was done using a discrete ordinate radiative transfer scheme and results were compared with the actinometric measurements. The quantum yields for O(D-1) production are reevaluated from existing data and reported here. The comparisons were done using the quantum yields for the photolysis of ozone recommended by DeMore et al. [1994], the newer evaluation of Michelsen et al. [1994], and also with reevaluated values in this paper. An analysis of the measured photolysis rate coefficient of O-3 to O(D-1) and model simulations of the photolysis rate coefficient data from clear days during the study provides added insight into the choice of quantum yield data for use in photochemical models of the troposphere. [References: 33]
机译：在莫纳罗亚天文台，使用一种新的光化学计量仪，基于O（D-1）与N2O的反应以及半球辐射计，测量了O-3对O（D-1）的原位光解速率系数，一分钟确定的平均光解速率系数的总不确定度在光度计1 sigma时约为+/- 11％，在辐射计1 sigma时约为+/- 15％。覆盖，气溶胶含量和高架臭氧代表了第一批长期测量值。晴朗的太阳正午值在大约3.0 x 10（-5）和4.5 x 10（-5）sec（-1）之间变化。使用离散的纵坐标辐射转移方案对光解速率系数进行建模，并将结果与​​光度法测量结果进行比较。从现有数据重新评估O（D-1）生产的量子产率，并在此处报告。比较是使用DeMore等人推荐的臭氧光解的量子产率进行的。 [1994]，对Michelsen等人的最新评估。 （1994），并且在本文中也有重新评估的值。在研究期间对测量的O-3到O（D-1）的光解速率系数的分析以及对光解速率系数数据的模型仿真的研究提供了对用于量子化学模型的量子产率数据选择的更多见解对流层。 [参考：33]

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