• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>World Congress on Particle Technology >Observations of nucleation mode particles formation and growth on Mount Huang, China
【24h】

Observations of nucleation mode particles formation and growth on Mount Huang, China

机译：黄山市黄山核颗粒形成与生长的观察

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The growth of nucleation mode particles is analyzed using the measured data of aerosol particle size distribution, trace gas and meteorological parameters collected on Mount Huang, China from September 22 to October 28, 2012. The new particle formation (NPF) events were observed on average 18.2% of all measurement days and all occurred before the noon of sunny days. Compared to non-event days, the wind speed, SO2 and O3 concentrations were higher on NPF days, whereas the temperature and relative humidity (RH) were at comparatively lower levels. The concentrations of small particles (10～20nm) increased first, and then the larger particles (20～50nm) concentrations increased over time. The peaks of large aerosol particle concentration were lower than that of small ones and the average growth rate (GR) of the newly formed aerosol particles was 3.58nm h~(-1). SO2 concentration peaked before nucleation mode particle number concentration reached to its maximum. SO2 participated in the particles nucleation as a kind of precursor and influenced the growth of newly formed particles. In our studies SO2 concentrations were found to be the main influencing factor of the aerosol particle growth rate, so the aerosol particle growth rate was higher with higher concentration of SO2. The basis for observation and parameterization schemes in this work will contribute to the database enrichment and model simulations of nucleation mode particle growth over this region.
机译：通过9月22日至2012年9月28日至10月28日，在黄山粒子尺寸分布，痕量气体和气象参数的测量数据分析了成核模式颗粒的生长。平均观察到新的粒子形成（NPF）事件所有测量日的18.2％，晴天中午均发生。与非事件日相比，NPF天的风速，SO2和O 3浓度较高，而温度和相对湿度（RH）在相对较低的水平。小颗粒（10〜20nm）的浓度首先增加，然后较大的颗粒（20〜50nm）浓度随时间而增加。大气溶胶颗粒浓度的峰值低于小的峰值，新形成的气溶胶颗粒的平均生长速率（GR）为3.58nmH〜（-1）。 SO2浓度在核切割模式粒子数浓度达到其最大值之前达到峰值。 SO2参与颗粒成核作为一种前体并影响新形成的颗粒的生长。在我们的研究中，SO2浓度被发现是气溶胶颗粒生长速率的主要影响因素，因此气溶胶颗粒生长速率较高，浓度较高。本作工作中的观察和参数化方案的基础将有助于该地区的成核模式粒子生长的数据库富集和模型模拟。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号