Antarctic Ice Core Records of Oceanic Emissions: Sulfur, Selenium, Bromine, and Iodine

该奖项是对一个为期三年的项目的支持，该项目旨在获得海洋衍生元素硫、溴、碘和硒在大气中沉积的长期记录。这项工作的主要重点是硫磺循环，因为它是大气中形成气溶胶的主要物种，而且在气候调节方面具有潜在的重要性。这项研究将分析来自沃斯托克冰芯和泰勒穹顶冰芯的样品。甲烷磺酸盐和非海盐硫酸盐的冰芯记录将扩大到包括Vostok深部冰芯中的两个完整的冰川周期，对Vostok浅层干钻探冰芯的分析将使我们能够确定这些参数最近的任何变化。还将对泰勒冰川冰芯进行分析，以与沃斯托克冰芯进行比较。

This award is for support of a three year project to obtain a long term record of the atmospheric deposition of the marine-derived elements Sulfur, Bromine, Iodine, and Selenium. The principle focus of the work is on the sulfur cycle, because of its role as the major aerosol forming species in the atmosphere and its potential importance in climate regulation. Samples from the Vostok and Taylor Dome ice cores will be analyzed for this study. The ice core record of methansulfonate and non-seasalt sulfate will be extended to include two complete glacial cycles in the deep Vostok ice core and analyses of a shallow, dry drilled ice core from Vostok will allow the identification of any recent changes in these parameters. Analyses of the Taylor glacier ice core will also be made for comparison with Vostok.