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首页> 外文期刊>Journal of atmospheric and oceanic technology >Aerosol Size Distributions from Genetic Inversion of Polar Nephelometer Data
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Aerosol Size Distributions from Genetic Inversion of Polar Nephelometer Data

机译：极性浊度计数据遗传反演的气溶胶粒径分布

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摘要

It is shown that genetic inversions can be used to recover lognormal aerosol size distributions from multiangle optical scattering cross-section data measured by a polar nephelometer at a wavelength of 0.532 μm. The inversions can also be used to recover the absolute calibration factor of the polar nephelometer. The method is demonstrated by applying it to polar nephelometer data measured during the Shoreline Environment Aerosol Study (SEAS) at Bellows Beach on the island of Oahu, Hawaii. Also, the inverted size distributions are compared with those inferred from direct measurements by particle sizers during SEAS. At 0.532 μm, the polar nephelometer data are dominated by the effect of coarse-mode hydrated sea salt. Although the inversion was unable to place constraints on the accumulation-mode size distribution, the modeled size distribution provides a good description of optical scattering at wavelengths of 0.532 μm and above.
机译：结果表明，遗传反演可用于从多角度光学散射截面数据中恢复对数正态气溶胶尺寸分布，该数据由极性浊度计在0.532μm波长处测量。反演也可用于恢复极性浊度计的绝对校准因子。该方法通过将其应用于在夏威夷瓦胡岛贝娄海滩上的海岸线环境气溶胶研究（SEAS）期间测量的极浊仪数据进行了验证。同样，将倒置的粒度分布与粒度分析仪在SEAS中直接测量得出的粒度分布进行比较。在0.532μm处，浊度仪的数据主要受粗模式水合海盐的影响。尽管反演无法对累积模式尺寸分布施加约束，但建模的尺寸分布可以很好地描述波长为0.532μm及以上的光散射。

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