Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-1511-2017 |
The impact of resolution on meteorological, chemical and aerosol properties in regional simulations with WRF-Chem | |
Crippa, Paola1; Sullivan, Ryan C.2; Thota, Abhinav3; Pryor, Sara C.2,3 | |
2017-01-31 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | Limited area (regional) models applied at high resolution over specific regions of interest are generally expected to more accurately capture the spatiotemporal variability of key meteorological and climate parameters. However, improved performance is not inevitable, and there remains a need to optimize use of numerical resources and to quantify the impact on simulation fidelity that derives from increased resolution. The application of regional models for climate forcing assessment is currently limited by the lack of studies quantifying the sensitivity to horizontal spatial resolution and the physical-dynamical-chemical schemes driving the simulations. Here we investigate model skill in simulating meteorological, chemical and aerosol properties as a function of spatial resolution, by applying the Weather Research and Forecasting model with coupled Chemistry (WRF-Chem) over eastern North America at different resolutions. Using Brier skill scores and other statistical metrics it is shown that enhanced resolution (from 60 to 12 km) improves model performance for all of the meteorological parameters and gas-phase concentrations considered, in addition to both mean and extreme aerosol optical depth (AOD) in three wavelengths in the visible relative to satellite observations, principally via increase of potential skill. Some of the enhanced model performance for AOD appears to be attributable to improved simulation of meteorological conditions and the concentration of key aerosol precursor gases (e.g., SO2 and NH3). Among other reasons, a dry bias in the specific humidity in the boundary layer and a substantial underestimation of total monthly precipitation in the 60 km simulations are identified as causes for the better performance of WRF-Chem simulations at 12 km. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394610700006 |
WOS关键词 | SOUTHEASTERN UNITED-STATES ; RELATIVE-HUMIDITY ; OPTICAL DEPTH ; PHYSICAL PARAMETERIZATIONS ; SUBGRID VARIABILITY ; GEOS-CHEM ; MODEL ; SENSITIVITY ; EMISSIONS ; CHEMISTRY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26228 |
专题 | 地球科学 |
作者单位 | 1.Newcastle Univ, Sch Civil Engn & Geosci, COMET, Cassie Bldg, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England; 2.Cornell Univ, Dept Earth & Atmospher Sci, Bradfield Hall,306 Tower Rd, Ithaca, NY 14853 USA; 3.Indiana Univ, Pervas Technol Inst, Bloomington, IN 47405 USA |
推荐引用方式 GB/T 7714 | Crippa, Paola,Sullivan, Ryan C.,Thota, Abhinav,et al. The impact of resolution on meteorological, chemical and aerosol properties in regional simulations with WRF-Chem[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(2). |
APA | Crippa, Paola,Sullivan, Ryan C.,Thota, Abhinav,&Pryor, Sara C..(2017).The impact of resolution on meteorological, chemical and aerosol properties in regional simulations with WRF-Chem.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(2). |
MLA | Crippa, Paola,et al."The impact of resolution on meteorological, chemical and aerosol properties in regional simulations with WRF-Chem".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.2(2017). |
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