| DOI: | 10.1016/j.atmosenv.2014.08.036
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| Scopus记录号: | 2-s2.0-84906342776
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| 论文题名: | A WRF-CMAQ study on spring time vertical ozone structure in Southeast Texas |
| 作者: | Li X; , Rappenglück B
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2014
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| 卷: | 97 | | 起始页码: | 363
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| 结束页码: | 385
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| 语种: | 英语
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| 英文关键词: | CMAQ
; Houston
; Ozonesondes
; Radiosondes
; WRF
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| Scopus关键词: | Advection
; Atmospheric chemistry
; Boundary layer flow
; Iterative methods
; Meteorological instruments
; Radiosondes
; Troposphere
; Chemistry modeling
; CMAQ
; Houston
; Model configuration
; Objective analysis
; Ozonesondes
; Sensitivity studies
; WRF
; Ozone
; ozone
; atmospheric chemistry
; atmospheric modeling
; boundary condition
; data set
; numerical model
; ozone
; spring (season)
; temperature effect
; upper atmosphere
; vertical profile
; wind profile
; air quality
; article
; atmosphere
; meteorology
; particulate matter
; priority journal
; sensitivity analysis
; simulation
; skill
; spring
; temperature
; troposphere
; United States
; wind
; Texas
; United States
|
| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
|
| 英文摘要: | A WRF-SMOKE-CMAQ modeling system was used to simulate vertical profiles of ozone, temperature and wind as well as surface ozone and meteorology during the Study of Houston Atmospheric Radical Precursors (SHARP) in May 2009. WRF and CMAQ sensitivity studies were conducted to define a proper combination of model configurations. With objective analysis WRF showed considerable skills in simulating temperature and wind profiles. CMAQ did well in replicating daily regional average ozone, with only minor overprediction for most of the days. According to the surface ozone statistics and the ozone biases along the vertical profiles, the model displayed little sensitivity to the two CMAQ model options: (i) fixed night time PBL height vs. WRF calculated night time PBL heights, and (ii) the combination of the Euler-backward iterative chemistry schemes and Yamartino advection (EBI/YAMO) vs. the Sparse-Matrix Vectorized Gear chemistry and Parabolic Method advection (SMV-GEAR/PPM) schemes. CMAQ shows substantial underprediction of ozone in the upper troposphere, but demonstrated fair skills in reproducing the ozone profile in the lower to middle troposphere, with typically a few ppb negative biases which tend to increase with height. However, the model usually cannot reproduce high variability in the ozone profiles due to the fixed default profiles and lack of data assimilation capability. While the default CMAQ static profile setup for boundary condition (BC) does not properly reflect the actual dynamic atmosphere, it remains a reasonable choice, since using downscaled real-time global chemistry model BCs demands considerable efforts and would still depend on the performance of the global model. © 2014 Elsevier Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/81262
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, United States
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| Recommended Citation: | |
Li X,, Rappenglück B. A WRF-CMAQ study on spring time vertical ozone structure in Southeast Texas[J]. Atmospheric Environment,2014-01-01,97
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