SGER: Measurements of particle emissions from The World Trade Center site in New York City

SGER：纽约世贸中心的颗粒排放测量

• 批准号: 0211625
• 负责人: Joseph Katz
• 金额: $ 9.99万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-15 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0211625&HistoricalAwards=false
• 关键词: SGER; Measurements; particle; emissions; World

0211625 Parlange The purpose of the research is to address questions on the particle transport from the World Trade Center (WTC) Site through the deployment of state-of-the-art instrumentation to measure the emission and resuspension of particles into the atmosphere It is planned to conduct the study over a ten-day intensive field observation period at the WTC site and the surrounding region of the greater New York City area to measure the flux of particles from the site and the vertical and horizontal extent of the aerosol plume. At the site, a combination of turbulence sensors, including Particle Image Velocimetry (PIV), Holographic PIV and sonic anemometers mounted on a telescopic profiling tower to continually measure the shear stress and the concentration and flux profiles of p[articles from the surface up to 10 m. above the site.A scanning elastic lidar system will be deployed to measure at high resolution (1.5 m.) the relative concentration of particles in the lower atmosphere (range up to 7 km.). The lidar will be deployed both near the site and at sites to be identified in the greater NYC area.The lidar system will be calibrated using the concentration measurements obtained from the PIV systems.An analysis of the field data collected will be conducted to identify relationships between weather conditions (e.g., wind shear stress, sensible heat flux) and the magnitude of the surface flux of particles and the extent of the transport into the atmosphere. ***

0211625划分研究的目的是通过部署最先进的仪器来解决粒子从世界贸易中心（WTC）站点的运输问题，以衡量颗粒的排放和重悬在大气中，计划在大气层中进行研究，以在纽约市和纽约市周围的范围内进行十天的强化现场观察期间进行研究，以在纽约市和周围的范围内进行衡量的范围，以衡量纽约市和周围的范围，以衡量范围的范围，以衡量纽约市和周围的范围，以衡量纽约市和周围的范围。气溶胶羽流的水平范围。在现场，湍流传感器（包括颗粒图像速度计（PIV），全息PIV和声音动态计）的组合安装在望远镜分析塔上，以不断测量剪切应力以及p [表面从10 m至10 m的eRTAILE的浓度和磁通概况。将部署一个扫描弹性激光雷达系统以高分辨率（1.5 m。）测量较低大气中颗粒的相对浓度（范围为7 km。）。 将在更大的纽约市区域内和要在距离地区识别的地点部署LIDAR。将使用从PIV系统获得的浓度测量进行校准。对所收集的野外数据的分析将用于确定天气条件之间的关系（例如，风剪应力，感应的热量磁通量和表面范围的范围和大气的范围均为范围的范围和范围的范围，并识别了范围。 ***