Ace-1 Aerosol Physics Instrumentation: A Workshop for the Inter-comparison of Particle Counters, Number Size Distribution Measurements & Cloud Condensation Nucleus Counters

Ace-1 气溶胶物理仪器：粒子计数器、数量尺寸分布测量相互比较研讨会

• 批准号: 9418419
• 负责人: David Covert
• 金额: $ 7.97万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9418419&HistoricalAwards=false
• 关键词: Ace; Aerosol; Physics; Instrumentation; Workshop

9418419 Covert This project is part of the Southern Hemisphere Marine Aerosol Characterization Experiment (ACE-1), which will be conducted in the remote Southern Pacific in 1995 using aircraft, ship-board, and ground-based measurements of a wide variety of chemical species, physical and meteorological parameters with the central goal of investigating the formation, evolution, and optical properties of atmospheric aerosol. A significant component of these objectives is the measurement of aerosol number and size distribution and cloud condensation nuclei. This project will be a workshop held in advance of ACE-1 to intercompare the particle counters, particle sizing devices, and cloud condensation nuclei counters which will be used on the various ACE-1 platforms. The goal of the workshop is to determine and minimize the variance in the concentration and size measurements between the different instruments such that differences measured in the field can be interpreted with confidence as real and due to differences in aerosol physics and chemistry rather than variability between instruments. An aerosol generation facility will be constructed to produce monodisperse and polydisperse aerosols of stable known size, concentration and chemical composition. This controlled aerosol is intended to simulate the atmosphere that will be encountered during ACE-1. The participants in ACE-1 aerosol physics measurements will be able to sample these aerosols in parallel and compare their results. The causes of differences will be sought and minimized in the course of the intercomparison.

小行星9418419 这个项目是南半球海洋浮质特性试验的一部分，该试验将于1995年在遥远的南太平洋进行，利用飞机、船上和地面测量各种化学物质、物理和气象参数，其中心目标是调查大气浮质的形成、演变和光学特性。这些目标的一个重要组成部分是测量气溶胶数量和大小分布以及云凝结核。该项目将是在ACE-1之前举行的一个研讨会，以相互比较将用于各种ACE-1平台的粒子计数器，粒子测量设备和云凝结核计数器。 讲习班的目标是确定和尽量减少不同仪器之间浓度和尺寸测量的差异，以便实地测量的差异可以有信心地解释为真实的，并归因于气溶胶物理和化学的差异，而不是仪器之间的可变性。 将建造一个气溶胶发生设施，以产生已知大小、浓度和化学成分稳定的单分散和多分散气溶胶。这种受控气溶胶旨在模拟ACE-1期间将遇到的大气。ACE-1气溶胶物理学测量的参与者将能够对这些气溶胶进行平行采样并比较其结果。将在相互比较过程中寻找差异的原因并尽量减少差异。