An Evaluation of a Diagnostic Wind Model (CALMET)
An Evaluation of a Diagnostic Wind Model (CALMET)
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DOI：
10.1175/2007jamc1602.1
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发表时间：
2008-06
影响因子：
3
通讯作者：
Weiguo Wang;W. Shaw;T. Seiple;J. Rishel;Yulong Xie
中科院分区：
文献类型：
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作者：
Weiguo Wang;W. Shaw;T. Seiple;J. Rishel;Yulong Xie
摘要：美国环境保护署 (EPA) 批准的诊断风模型 [加州气象模型 (CALMET)] 在芝加哥地区晴朗天气条件下的典型湖风事件中进行了评估。作者重点关注了 CALMET 在模拟空间和时间上高度变化的风方面的性能。参考风由第五代宾夕法尼亚州立大学国家大气研究中心中尺度模型（MM5）同化系统产生，并与CALMET结果进行比较。进行统计评估以量化域内风速和风向的整体模型差异。模拟期间，距地表850 m以下，（层平均）风速相对差异约为25%~40%；风向差异一般在6°至20°之间。在850 m以上，由于研究区域附近的高空站数量有限，差异变得更大。分析暗示...
Abstract A U.S. Environmental Protection Agency (EPA)-approved diagnostic wind model [California Meteorological Model (CALMET)] was evaluated during a typical lake-breeze event under fair weather conditions in the Chicago region. The authors focused on the performance of CALMET in terms of simulating winds that were highly variable in space and time. The reference winds were generated by the fifth-generation Pennsylvania State University–National Center for Atmospheric Research Mesoscale Model (MM5) assimilating system, with which CALMET results were compared. Statistical evaluations were conducted to quantify overall model differences in wind speed and direction over the domain. Below 850 m above the surface, relative differences in (layer averaged) wind speed were about 25%–40% during the simulation period; wind direction differences generally ranged from 6° to 20°. Above 850 m, the differences became larger because of the limited number of upper-air stations near the studied domain. Analyses implied th...