• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

利用光谱分析获取中尺度下坡风驱动大气环境中的频散参数。

Employing Spectral Analysis to Obtain Dispersion Parameters in an Atmospheric Environment Driven by a Mesoscale Downslope Windstorm.

机构信息

Departamento de Física, Universidade Federal de Santa Maria, Santa Maria 97105-900, RS, Brazil.

Instituto Federal Farroupilha, São Vicente do Sul 97420-000, RS, Brazil.

出版信息

Int J Environ Res Public Health. 2021 Dec 10;18(24):13027. doi: 10.3390/ijerph182413027.

DOI:10.3390/ijerph182413027
PMID:34948637
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8702000/
Abstract

Considering the influence of the downslope windstorm called "Vento Norte" (VNOR; Portuguese for "North Wind") in planetary boundary layer turbulent features, a new set of turbulent parameterizations, which are to be used in atmospheric dispersion models, has been derived. Taylor's statistical diffusion theory, velocity spectra obtained at four levels (3, 6, 14, and 30 m) in a micrometeorological tower, and the energy-containing eddy scales are used to calculate neutral planetary boundary layer turbulent parameters. Vertical profile formulations of the wind velocity variances and Lagrangian decorrelation time scales are proposed, and to validate this new parameterization, it is applied in a Lagrangian Stochastic Particle Dispersion Model to simulate the Prairie Grass concentration experiments. The simulated concentration results were shown to agree with those observed.

摘要

考虑到下坡风暴“北风”（VNOR；葡萄牙语意为“北风”）对行星边界层湍流特征的影响，已经推导出了一套新的湍流参数化方案，这些方案将用于大气扩散模型。泰勒的统计扩散理论、在微气象塔四个高度（3、6、14 和 30 米）获得的速度谱以及含能涡旋尺度用于计算中性行星边界层湍流参数。提出了风速方差和拉格朗日去相关时间尺度的垂直廓线公式，并应用拉格朗日随机粒子扩散模型对草原草浓度实验进行了模拟，以验证这种新的参数化方法。模拟的浓度结果与观测结果相符。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/7756b0649ec8/ijerph-18-13027-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/2f3f92ae16a0/ijerph-18-13027-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/a7ddd9ff2c5e/ijerph-18-13027-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/efce883d99d9/ijerph-18-13027-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/e500297d8d6f/ijerph-18-13027-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/9270c284b3e4/ijerph-18-13027-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/7756b0649ec8/ijerph-18-13027-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/2f3f92ae16a0/ijerph-18-13027-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/a7ddd9ff2c5e/ijerph-18-13027-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/efce883d99d9/ijerph-18-13027-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/e500297d8d6f/ijerph-18-13027-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/9270c284b3e4/ijerph-18-13027-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dd25/8702000/7756b0649ec8/ijerph-18-13027-g006.jpg

相似文献

1
Employing Spectral Analysis to Obtain Dispersion Parameters in an Atmospheric Environment Driven by a Mesoscale Downslope Windstorm.利用光谱分析获取中尺度下坡风驱动大气环境中的频散参数。
Int J Environ Res Public Health. 2021 Dec 10;18(24):13027. doi: 10.3390/ijerph182413027.
2
Dispersion of radionuclides released into a stable planetary boundary layer using a Monte Carlo model.使用蒙特卡罗模型对释放到稳定行星边界层中的放射性核素进行扩散研究。
J Radiol Prot. 2006 Dec;26(4):375-87. doi: 10.1088/0952-4746/26/4/002. Epub 2006 Nov 20.
3
Simulation of atmospheric dispersion of radionuclides using an Eulerian-Lagrangian modelling system.使用欧拉-拉格朗日建模系统模拟放射性核素的大气扩散。
J Radiol Prot. 2008 Dec;28(4):539-61. doi: 10.1088/0952-4746/28/4/007. Epub 2008 Nov 24.
4
Simulating Lagrangian Subgrid-Scale Dispersion on Neutral Surfaces in the Ocean.模拟海洋中性表面上的拉格朗日亚网格尺度扩散
J Adv Model Earth Syst. 2022 Feb;14(2):e2021MS002850. doi: 10.1029/2021MS002850. Epub 2022 Feb 5.
5
Incorporating sweeps and ejections into Lagrangian stochastic models of spore trajectories within plant canopy turbulence: modeled contact distributions are heavy-tailed.将扫荡和喷射纳入植物冠层紊流中孢子轨迹的拉格朗日随机模型中：模拟的接触分布呈重尾分布。
Phytopathology. 2012 Nov;102(11):1026-33. doi: 10.1094/PHYTO-01-12-0002.
6
Vertical structure of conventionally neutral atmospheric boundary layers.常规中性大气边界层的垂直结构。
Proc Natl Acad Sci U S A. 2022 May 31;119(22):e2119369119. doi: 10.1073/pnas.2119369119. Epub 2022 May 24.
7
Observations of boundary layer wind and turbulence of a landfalling tropical cyclone.对一个登陆热带气旋边界层风和湍流的观测。
Sci Rep. 2022 Jun 30;12(1):11056. doi: 10.1038/s41598-022-14929-w.
8
Analysis of Thermal and Roughness Effects on the Turbulent Characteristics of Experimentally Simulated Boundary Layers in a Wind Tunnel.风洞中实验模拟边界层湍流特性的热效应和粗糙度效应分析
Int J Environ Res Public Health. 2022 Apr 23;19(9):5134. doi: 10.3390/ijerph19095134.
9
Lagrangian Particle Dispersion Models in the Grey Zone of Turbulence: Adaptations to FLEXPART-COSMO for Simulations at 1 km Grid Resolution.湍流灰色区域中的拉格朗日粒子扩散模型：针对1公里网格分辨率模拟对FLEXPART-COSMO的适配
Boundary Layer Meteorol. 2022;185(1):129-160. doi: 10.1007/s10546-022-00728-3. Epub 2022 Aug 5.
10
Study on gas diffusion emitted from different height of point source.点源不同高度气体扩散排放的研究
Environ Monit Assess. 2009 Jan;148(1-4):379-95. doi: 10.1007/s10661-008-0168-y. Epub 2008 Feb 29.