Instrumentation to Measure Aerosol Mass and Composition for Research to Improve Satellite Remote Sensing and Modeling of Atmospheric Composition

测量气溶胶质量和成分的仪器，用于改进卫星遥感和大气成分建模的研究

• 批准号: 428850-2012
• 负责人: Martin, Randall
• 金额: $ 10.82万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=496396
• 关键词: Instrumentation; Measure; Aerosol; Mass; Composition

Particles suspended in the atmosphere, known as aerosols, have major roles in climate change and air quality. Aerosols affect climate by scattering and absorbing solar radiation, and by affecting cloud properties. Respired aerosols are a significant health hazard. The development of algorithms to observe aerosols through satellite remote sensing, and to represent aerosol processes through global modelling, benefits from existing ground-based sun-photometer measurements of aerosol in the entire atmospheric column. However, uncertainty remains about the fraction of those aerosols at ground-level, and about their chemical composition. We propose instrumentation to measure ground-level aerosol mass and composition at existing sun-photometer locations. Together these measurements would yield valuable information to evaluate and improve satellite observations of atmospheric aerosols, and global modeling of aerosol processes.

悬浮在大气中的颗粒物，被称为气溶胶，在气候变化和空气质量方面发挥着重要作用。 气溶胶通过散射和吸收太阳辐射以及影响云的特性来影响气候。 吸入的气溶胶是一个重大的健康危害。 通过卫星遥感观测气溶胶和通过全球建模表示气溶胶过程的算法的开发，得益于现有的地面太阳光度计对整个大气柱中气溶胶的测量。 然而，关于这些气溶胶在地面的比例及其化学成分仍然不确定。 我们建议在现有的太阳光度计位置测量地面气溶胶质量和成分的仪器。 这些测量结果将产生有价值的信息，以评估和改进大气气溶胶的卫星观测，以及气溶胶过程的全球建模。