Evaluation of the NCEP Mesoscale Eta Model Convective Boundary Layer for Air Quality Applications

Evaluation of the NCEP Mesoscale Eta Model Convective Boundary Layer for Air Quality Applications
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NCEP 中尺度 Eta 模型对流边界层空气质量应用的评估

DOI:
10.1175/1520-0493(2001)129
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发表时间:
2001
影响因子:
3.2
通讯作者:
K. Mitchell
K. Mitchell
中科院分区:
地球科学2区
文献类型:
--
作者:
W. Angevine;K. Mitchell

文献摘要

被引文献

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大气模型是理解空气质量差的过程、预测空气质量问题和评估建议解决方案的基本工具。在许多空气质量模式的基础上是一个中尺度气象模式。美国国家环境预测中心(NCEP)现在使用的模型的空间分辨率比以前许多空气质量研究所用的模型都要好。对流边界层中的混合深度、风和温度廓线是气象模式为空气质量应用而必须正确预测的关键参数。本文介绍了Eta模型预测的这些参数的基础上,在伊利诺伊州和田纳西州的站点由边界层风廓线测量比较的评估。结果表明,Eta模式是相当有用的气象驱动程序的空气质量模拟在合理简单的地形和天气条件下。模型估计的混合深度,边界层和边界层。
Abstract Atmospheric models are a basic tool for understanding the processes that produce poor air quality, for predicting air quality problems, and for evaluating proposed solutions. At the base of many air quality models is a mesoscale meteorological model. The National Centers for Environmental Prediction (NCEP) is now using a model with spatial resolution better than that used for many previous air quality studies. Mixing depth and wind and temperature profiles in the convective boundary layer are the key parameters that must be predicted correctly by a meteorological model for air quality applications. This paper describes an evaluation of the Eta Model predictions of these parameters based on comparisons to measurements made by boundary layer wind profilers at sites in Illinois and Tennessee. The results indicate that the Eta Model is quite usable as a meteorological driver for air quality modeling under reasonably simple terrain and weather conditions. The model estimates of mixing depth, boundary ...