MRI-R2: Acquisition of a Single Particle Soot Photometer (SP2) for Analyses of Black Carbon in the Environment

MRI-R2：购买单粒子烟灰光度计 (SP2) 用于分析环境中的黑碳

• 批准号: 0957935
• 负责人: Susan Kaspari
• 金额: $ 18.74万
• 依托单位: Central Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-03-15 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0957935&HistoricalAwards=false
• 关键词: MRI; R2; Acquisition; Single; Particle; MRI; R2; Acquisition; Single; Particle

Kaspari0957935This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This MRI-R2 award will fund the purchase of a particle soot photometer (SP2) for black carbon analysis. The SP2 system allows measuring mass, mixing state, and optical size of black carbon particles. It does so with lower detection limits and less sample alteration than traditional thermal-optical methods. Gaseous samples can be introduced directly while liquid samples (ice core sections, for example) are nebulized before introduction. Black carbon is produced from incomplete combustion and derives from biomass, coal and fossil-fuel burning. It absorbs light in the atmosphere and leads to increased temperature. In ice or snow, black carbon can reduce surface albedo leading to increased melting. It is thought to play a major role in global warming. Black carbon will be analyzed in ice cores to provide proxy data for paleoclimatological reconstructions. The SP2 system will be critical to obtaining high-resolution measurements on very small sample quantities. Sampling will focus on several regional systems including the Himalayas, the North Cascades, Greenland, Antarctica and other North American sites. Black carbon impacts on snow and ice albedo will be determined and the impact on climate forcing assessed. These data will be placed into context with other measures of snowmelt and climate gradients. The analyzer will also be used to better understand anthropogenic and natural aerosols. Research conducted with the new instrument will, at its core, have tremendous societal relevance as black carbon and its associated heat forcing may account for a considerable portion of the uncertainty in estimating global climate change. The SP2 will be incorporated into 2 graduate and 4 undergraduate courses at CWU. University science programs are established which target underrepresented groups. The instrument will be housed in newly renovated laboratory space. The adjacent spaces house clean laboratories and ice core processing facilities. The PI will be responsible for instrument purchase, installation, maintenance, calibration and training. The PI has managed this instrumentation as a post-doc. Two full-time engineering technicians are available through the department. Consumables will be purchased through research grants and laboratory fees charged to outside users. ***

Kaspari0957935这项奖项是根据2009年《美国回收与再投资法》（公法111-5）资助的。该MRI-R2奖将资助购买粒子烟灰光度计（SP2）进行黑碳分析。 SP2系统允许测量质量，混合状态和黑色碳颗粒的光学大小。与传统的热光学方法相比，它以较低的检测极限和更少的样品改变来做到这一点。可以在引入之前直接引入气态样品（例如，冰核切片）。黑碳是由不完全燃烧产生的，并源自生物质，煤炭和化石燃料燃烧。它吸收大气中的光并导致温度升高。在冰或雪中，黑碳可以减少表面反照率，从而导致融化增加。人们认为它在全球变暖中起着重要作用。黑碳将在冰芯中进行分析，以提供古气候重建的代理数据。 SP2系统对于在很小的样品数量上获得高分辨率测量至关重要。采样将集中在多个区域系统上，包括喜马拉雅山脉，北喀斯喀特，格陵兰，南极和其他北美遗址。将确定对雪和冰反照率的黑碳的影响，并评估对气候强迫的影响。这些数据将通过融雪和气候梯度的其他度量将其放置在上下文中。该分析仪还将用于更好地了解人为和天然气溶胶。以新工具进行的研究将其核心具有巨大的社会意义，因为黑碳及其相关的热力强迫可能占估计全球气候变化的不确定性的很大一部分。 SP2将纳入CWU的2个毕业生和4个本科课程。建立了针对代表性不足的群体的大学科学计划。该仪器将安置在新装修的实验室空间中。相邻的空间容纳清洁实验室和冰核加工设施。 PI将负责购买，安装，维护，校准和培训。 PI已将这种仪器作为大约一批次进行管理。该部门提供两名全日制工程技术人员。消耗品将通过向外部用户收取的研究补助金和实验室费用购买。 ***