Early Career: Acquisition of Laser Diffractometer Particle Size Analyzer for Grain Size Analyses of Pyroclastic and Sedimentary Deposits

早期职业生涯：购买激光衍射粒度分析仪，用于火山碎屑和沉积物的粒度分析

• 批准号: 1536486
• 负责人: Kimberly Genareau
• 金额: $ 7.62万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-03-01 至 2017-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1536486&HistoricalAwards=false
• 关键词: Early; Career; Acquisition; Laser; Diffractometer

This project will obtain a Laser Diffractometer Particle Size Analyzer (LDPSA) to study the physical dynamics of explosive volcanic eruptions. The instrument will be used to analyze volcanic ash as a product of magmatic fragmentation and as a hazard to aircraft, electrical infrastructure, and human health. The instrument will also serve multiple faculty researchers in geoscience and physics. The LDPSA will provide hands-on training for several graduate and undergraduate courses in the Department of Geological Sciences. The instrument will also permit public outreach efforts to local high schools by providing opportunities for visiting students to use the instrument. A Laser Diffractometer Particle Size Analyzer (LDPSA) allows researchers at University of Alabama Tuscaloosa to explore grain size analyses as a complementary tool for answering research questions seeking information about watershed systematics and the regulation of bacterial communities. Preliminary data demonstrate that sediment surface area, calculated using particle size, is an important factor regulating the total bacterial biomass. The LDPSA will provide information to evaluate: 1) whether this relationship holds across seasons and hydrological regimes; 2) whether sediment surface area and size distribution also play an important part in determining microbial community structure. The LDPSA will provide hands-on training of research methodologies for a variety of both graduate and undergraduate courses in the Department of Geological Sciences. The availability of an LDPSA will broaden the effectiveness of these lessons and allow students to directly perform analyses and examine the resultant data in an interactive setting.

该项目将获得激光衍射仪粒径分析仪（LDPSA），以研究爆炸性火山喷发的物理动力学。 该仪器将用于分析火山灰作为岩浆碎片化的产物，并对飞机，电基础设施和人类健康危害。 该仪器还将为地球科学和物理学的多个教职研究者提供服务。 LDPSA将为地质科学系的多个研究生和本科课程提供动手培训。该工具还将通过为访问学生提供使用该乐器的机会，允许公共宣传工作。 激光衍射仪粒度分析仪（LDPSA）允许阿拉巴马大学塔斯卡卢萨（University of Alabama Tuscaloosa）的研究人员探索晶粒尺寸分析，作为一个互补的工具，用于回答研究问题，以寻求有关流域系统学和细菌群落调节的信息。 初步数据表明，使用粒度计算的沉积物表面积是调节总细菌生物量的重要因素。 LDPSA将提供信息以评估：1）这种关系是否在各个季节和水文制度之间存在； 2）沉积物表面积和尺寸分布是否在确定微生物群落结构中起重要作用。 LDPSA将对地质科学系的各种研究生和本科课程进行研究方法的动手培训。 DPSA的可用性将扩大这些课程的有效性，并允许学生直接进行分析并在交互式环境中检查所得数据。