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Comparison of dry deposition estimates of AERMOD and CALPUFF from area sources in flat terrain

机译：比较平坦地形中区域源的AERMOD和CALPUFF的干沉降量

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The dry deposition algorithms of AERMOD and CALPUFF were compared, studying emissions from hypothetical area and point sources in flat terrain. The deposited fractions calculAted by AERMOD and CALPUFF are different for the C, D and F stability classes. In all the studied scenarios the differences between the deposited fractions calculated by AERMOD and CALPUFF are much smaller than those calculated previously in complex terrain. Yet, the detected differences in the deposited fractions may affect the ambient concentrations calculated by AERMOD and CALPUFF in the receptor points as a part of an environmental impact assessment and lead to different conclusions on the residents' exposure. The distinct account of AERMOD and CALPUFF to certain wind speeds and stability classes, and their different algorithms for calculating the dispersion coefficients, is the only explanation for the different estimates of deposited fractions between AERMOD and CALPUFF over absolutely flat terrain. (C) 2016 Elsevier Ltd. All rights reserved.
机译：比较了AERMOD和CALPUFF的干沉降算法，研究了平坦地形中假设区域和点源的排放。对于C，D和F稳定性类别，由AERMOD和CALPUFF计算的沉积级分是不同的。在所有研究的方案中，通过AERMOD和CALPUFF计算的沉积分数之间的差异要比以前在复杂地形中计算的差异小得多。然而，作为环境影响评估的一部分，所检测到的沉积部分差异可能会影响AERMOD和CALPUFF在受体点计算的环境浓度，这是对环境影响评估的一部分，并导致居民暴露的结论不同。 AERMOD和CALPUFF对某些风速和稳定性类别的不同解释，以及它们用于计算弥散系数的不同算法，是对绝对平坦地形上AERMOD和CALPUFF之间沉积分数的不同估计的唯一解释。 （C）2016 Elsevier Ltd.保留所有权利。

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