Effects of Soluble Trace Gases on Aerosol Microphysics: Experimental Studies with Individual Ternary Solution Droplets at Low Temperatures

可溶性痕量气体对气溶胶微物理的影响:低温下单个三元溶液液滴的实验研究

基本信息

  • 批准号:
    9528255
  • 负责人:
  • 金额:
    $ 35万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    1996
  • 资助国家:
    美国
  • 起止时间:
    1996-05-15 至 1999-10-31
  • 项目状态:
    已结题

项目摘要

9528255 Lamb Atmospheric aerosol strongly affects many processes in the atmosphere, including cloud formation, chemical transformations, radiation balance, and climate. The chemical nature and microphysical behavior of these particles depend in turn on the temperature and composition of the surrounding air. The sulfuric acid particles found in the upper troposphere and lower stratosphere are very hygroscopic and tend to absorb ambient water vapor and soluble trace gases because of the low temperatures prevailing there. Detailed information on the microphysics and chemistry of aerosols can be obtained from laboratory studies. The overall objective of this research is to determine how representative aerosol particles respond to varying environmental conditions. Laboratory experiments with micron-size sulfuric acid particles levitated electrodynamically in an environmental chamber will be conducted over broad ranges of temperature and humidity in the presence of controlled concentrations of a soluble trace gas, such as nitric acid or hydrochloric acid. The experimental system, developed during prior research, is configured as a wall-less flow reactor, mimicking atmospheric conditions. Data from these experiments will yield new insights into aerosol-atmosphere interactions and serve to verify various gas-particle interaction models needed to parameterize aerosol effects in large-scale atmospheric models.
9528255 羔羊 大气气溶胶强烈影响大气中的许多过程,包括云的形成、化学转化、辐射平衡和气候。这些颗粒的化学性质和微物理行为又取决于周围空气的温度和成分。在对流层上部和平流层下部发现的硫酸颗粒具有很强的吸湿性,并且由于那里的温度较低,往往会吸收周围的水蒸气和可溶性痕量气体。关于气溶胶的微观物理和化学的详细资料可以从实验室研究中获得。 这项研究的总体目标是确定代表性的气溶胶颗粒如何响应不同的环境条件。在环境室中电动悬浮的微米级硫酸颗粒的实验室实验将在广泛的温度和湿度范围内进行,在控制浓度的可溶性痕量气体,如硝酸或盐酸的存在下。在先前的研究中开发的实验系统被配置为无壁流动反应器,模仿大气条件。这些实验的数据将产生新的见解气溶胶-大气相互作用,并有助于验证各种气体颗粒相互作用模型所需的参数化气溶胶在大尺度大气模型的影响。

项目成果

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Dennis Lamb其他文献

Designing Inductive Instructional Activities in a Teacher Training Program to Enhance Conceptual Understandings in Science for Thai Science and Non-Science Teachers.
在教师培训计划中设计归纳教学活动,以增强泰国科学和非科学教师对科学的概念理解。
  • DOI:
    10.13189/ujer.2016.040614
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Pattawan Narjaikaew;Varanya Jeeravipoonvarn;Kanjana Pongpisanou;Dennis Lamb
  • 通讯作者:
    Dennis Lamb

Dennis Lamb的其他文献

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{{ truncateString('Dennis Lamb', 18)}}的其他基金

Experimental and Theoretical Studies of Cloud-Particle Growth Kinetics
云粒子生长动力学的实验和理论研究
  • 批准号:
    0234211
  • 财政年份:
    2002
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
An Experimental Study of Ice Crystal Growth and Evaporation
冰晶生长和蒸发的实验研究
  • 批准号:
    9981511
  • 财政年份:
    1999
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
Laboratory Investigations of Heterogeneous Interactions Involving Atmospheric Trace Gases and Ice
涉及大气微量气体和冰的异质相互作用的实验室研究
  • 批准号:
    9319119
  • 财政年份:
    1994
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
Laboratory Studies of Cloud Microphysical and Chemical Phenomena Involving Ice
涉及冰的云微物理和化学现象的实验室研究
  • 批准号:
    8919837
  • 财政年份:
    1990
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
A Study of Microphysical Processes Associated with the Atmospheric Removal of Moisture and Trace Chemicals by Precipitating Clouds
与降水云去除大气中的水分和微量化学物质相关的微物理过程的研究
  • 批准号:
    8716166
  • 财政年份:
    1988
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
A Laboratory Study of Aerosol Scavenging by Ice in Supercooled Clouds
过冷云中冰清除气溶胶的实验室研究
  • 批准号:
    8520123
  • 财政年份:
    1986
  • 资助金额:
    $ 35万
  • 项目类别:
    Continuing Grant
The Formation and Modification of Cloud Nuclei Gas Phase Reactions
云核气相反应的形成与修饰
  • 批准号:
    7516899
  • 财政年份:
    1976
  • 资助金额:
    $ 35万
  • 项目类别:
    Standard Grant

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不溶性和部分可溶的颗粒材料特性如何影响脂肪基产品的感官知觉
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靶向可溶性鸟苷酸环化酶作为治疗和预防心律失常的新策略:功效和机制
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    MR/Y003594/1
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    23K13909
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    2023
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Structural and biochemical investigations into the mechanism and evolution of soluble guanylate cyclase regulation
可溶性鸟苷酸环化酶调节机制和进化的结构和生化研究
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    10604822
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Effects of maternal deficiency or excess of fat-soluble vitamin during pregnancy and lactation on the adipose tissue development of offspring
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使用 Cav3 通道和可溶性环氧化物水解酶的 IND 双重抑制剂开发可卡因使用障碍的新型治疗方法
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