Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.05.018 |
Turbulence parameterizations for dispersion in sub-kilometer horizontally non-homogeneous flows | |
Tomasi, Elena1,2; Giovannini, Lorenzo1; Falocchi, Marco1; Antonacci, Gianluca2; Jimenez, Pedro A.3; Kosovic, Branko3; Alessandrini, Stefano3; Zardi, Dino1; Delle Monache, Luca3; Perrero, Enrico4,5 | |
2019-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 228页码:122-136 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; USA |
英文摘要 | Results from numerical simulations of tracer dispersion from a point source (an incinerator plant) over complex terrain are presented. Different modeling chains are used and model output compared with ground concentration measurements from the 2017 Bolzano Tracer EXperiment (BTEX) over the Eastern Italian Alps. In particular, meteorological simulations are run with the Weather Research and Forecasting (WRF) model to reproduce the flow field at sub-kilometer grid resolution (300 m). The simulations apply observational nudging of upper-air and surface meteorological observations, as well as an improved snow cover initialization, which allow to better characterize valley winds in the afternoon. In addition, the simulations are run by substituting the default closure constants of the Planetary Boundary Layer (PBL) scheme with a set of values specific for complex terrain applications. Meteorological results are evaluated comparing wind speed standard deviations with measurements from a SODAR instrumentation deployed during the experiment. The meteorological fields provide the input to two different dispersion models: the CALMET/CALPUFF puff-Gaussian model, representing the reference standard model often used in impact assessments, and the WSI/SPRAY-WEB Lagrangian particle model. Different parameterizations for the calculation of the dispersion coefficients, based either on surface layer scales or on the turbulent kinetic energy from the WRF PBL scheme, are tested. A statistical analysis of the results from all the dispersion models is performed to assess the simulation performance against tracer concentration measurements collected during the BTEX campaign. |
英文关键词 | Dispersion modeling Complex terrain Turbulence parameterizations |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477686700011 |
WOS关键词 | BOUNDARY-LAYER VARIABLES ; POLLUTION EPISODES ; MODEL PERFORMANCE ; TRACER EXPERIMENT ; WEATHER RESEARCH ; CLOSURE-MODEL ; PBL SCHEMES ; SIMULATIONS ; SENSITIVITY ; TRANSPORT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/187868 |
专题 | 地球科学 |
作者单位 | 1.Univ Trento, Dept Civil Environm & Mech Engn, Atmospher Phys Grp, Trento, Italy; 2.CISMA Srl, Ctr Ingn & Sviluppo Modelli Ambiente, Bolzano, Italy; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 4.Univ Piemonte Orientate, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy; 5.CNR, Ist Sci Atmosfera & Clima, Turin, Italy |
推荐引用方式 GB/T 7714 | Tomasi, Elena,Giovannini, Lorenzo,Falocchi, Marco,et al. Turbulence parameterizations for dispersion in sub-kilometer horizontally non-homogeneous flows[J]. ATMOSPHERIC RESEARCH,2019,228:122-136. |
APA | Tomasi, Elena.,Giovannini, Lorenzo.,Falocchi, Marco.,Antonacci, Gianluca.,Jimenez, Pedro A..,...&Perrero, Enrico.(2019).Turbulence parameterizations for dispersion in sub-kilometer horizontally non-homogeneous flows.ATMOSPHERIC RESEARCH,228,122-136. |
MLA | Tomasi, Elena,et al."Turbulence parameterizations for dispersion in sub-kilometer horizontally non-homogeneous flows".ATMOSPHERIC RESEARCH 228(2019):122-136. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论