Electrical and Optical Measurements on the Siple Dome Ice Core

单穹顶冰芯的电学和光学测量

• 批准号: 9526420
• 负责人: Kendrick Taylor
• 金额: $ 31.66万
• 依托单位: Nevada System of Higher Education, Desert Research Institute
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526420&HistoricalAwards=false
• 关键词: Electrical; Optical; Measurements; Siple; Dome

This award is for support for the measurement of electrical and optical properties of the Siple Dome ice core. The electrical methods can be used to determine the concentration of the hydrogen ions and the concentration of a weighted sum of all ions. The electrical measurements can resolve features as small as 1 cm. The albedo of the core is also measured with a laser system that can resolve features as small as 0.5 cm. The high spatial resolution of these methods makes them ideal for resolving narrow features in the core, which can be missed in larger composite samples. The measurements will be particularly useful for assisting to date the core and to identify short duration features in the record, such as volcanic eruptions. These measurements will also provide useful information for assessing the temporal variability of Holocene accumulation rate and atmospheric circulation.

该奖项是为了支持测量Siple Dome冰芯的电学和光学特性。 电学方法可用于确定氢离子的浓度和所有离子的加权和的浓度。 电测量可以分辨小至1 cm的特征。 还可以用激光系统测量核心的宽度，该系统可以分辨小至0.5厘米的特征。 这些方法的高空间分辨率使其成为解决岩心中狭窄特征的理想方法，这些特征在较大的复合样品中可能会被遗漏。 这些测量将特别有助于协助确定岩芯的年代，并确定记录中持续时间较短的特征，如火山爆发。 这些测量也将提供有用的信息，评估全新世积累率和大气环流的时间变化。