Collaborative Research: The Processing and Radiative Properties of Aerosols over the Western North Atlantic Ocean at Bermuda

合作研究：百慕大北大西洋西部气溶胶的处理和辐射特性

• 批准号: 0541566
• 负责人: Kenneth Voss
• 金额: --
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-04-01 至 2011-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0541566&HistoricalAwards=false
• 关键词: Collaborative; Research; Processing; Radiative; Properties

The primary objectives of this project are: 1) To characterize major processes controlling the chemical, physical, and optical properties of near-surface aerosols, including elemental and organic carbon (EC/OC), over the western North Atlantic Ocean; 2) To quantify long-term trends in aerosol concentrations and fluxes and assess their influences on climate forcing; and 3) To provide data for and to collaborate with (a) the modeling community to develop reliable predictive capabilities for direct climate forcing by aerosols and (b) the remote sensing community to improve the accuracy of algorithms used to retrieve atmospheric and oceanic information. Super- and sub-micron diameter aerosols will be sampled daily at Bermuda and analyzed for EC/OC, spectrally resolved absorption, major organic and inorganic ions, and mineral aerosol mass. Aerosol light scattering will be measured continuously, and wet-deposition fluxes of major ions and EC/OC will be quantified. In collaboration with NASA, profiles of aerosol backscatter, extinction, and cloud height will be measured continuously. Three-dimensional back trajectories will be calculated and clustered into characteristic transport regimes. Data will be integrated into climatologies of aerosol chemical, physical, and optical properties as a function of transport regime, and long-term trends will be evaluated. Individual cases representative of major regimes will be interpreted in conjunction with satellite-derived humidity and aerosol optical depth fields and infrared (IR) cloud fields.This effort will enhance efforts to predict the influence of changing aerosol composition on radiative transfer and, in turn, on meteorology and climate. Broader impacts also include training of undergraduate and graduate students in atmospheric chemistry and physics.

该项目的主要目标是： 1) 表征控制北大西洋西部上空近地表气溶胶的化学、物理和光学特性的主要过程，包括元素碳和有机碳 (EC/OC)； 2) 量化气溶胶浓度和通量的长期趋势并评估其对气候强迫的影响； 3) 为 (a) 建模界提供数据并与之合作，开发气溶胶直接气候强迫的可靠预测能力；(b) 遥感界提高用于检索大气和海洋信息的算法的准确性。 百慕大每天都会对超微米和亚微米直径的气溶胶进行采样，并分析 EC/OC、光谱分辨吸收、主要有机和无机离子以及矿物气溶胶质量。 将连续测量气溶胶光散射，并对主要离子和 EC/OC 的湿沉积通量进行量化。 与 NASA 合作，将连续测量气溶胶反向散射、消光和云高度的轮廓。 三维后向轨迹将被计算并聚类成特征传输机制。 数据将被整合到气溶胶化学、物理和光学特性的气候学中，作为传输机制的函数，并将评估长期趋势。 代表主要状况的个别案例将结合卫星衍生的湿度和气溶胶光学深度场以及红外（IR）云场进行解释。这项工作将加强预测气溶胶成分变化对辐射传输的影响，进而预测对气象和气候的影响。 更广泛的影响还包括对本科生和研究生进行大气化学和物理学方面的培训。