International Research Fellow Awards: Influence of Atmospheric Dust on Global Climate Variations During Last Glacial Cycle

小行星9703688 国际研究员奖励计划使美国科学家和工程师能够在国外进行三到二十四个月的研究。该计划的奖项提供了联合研究的机会，以及使用国外独特或互补的设施，专业知识和实验条件。 该奖项将支持娜塔莉M博士为期12个月的博士后研究访问。Mahowald将与瑞典斯德哥尔摩大学的Knut Henning Rodhe博士合作。 Mahowald博士将构建和应用一个耦合模型，用于大气尘埃的来源，夹带，大气传输和沉积，由末次冰期最大期大气环流和生态系统模型的结果相结合驱动。 冰芯中矿物粉尘的浓度在冰期和间冰期之间表现出很大的变化，在冰期出现较高的浓度。 在冰期-间冰期时间尺度上，大气尘对全球气候变化可能起着积极的控制作用。 这种控制可以通过将太阳辐射散射回太空、改变海洋中的营养平衡以及降低冰雪表面的覆盖度来实现。 ***

9703688 Mahowald The International Research Fellow Awards Program enables U.S. scientists and engineers to conduct three to twenty four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. This award will support a twelve-month postdoctoral research visit by Dr. Natalie M. Mahowald to work with Dr. Knut Henning Rodhe at Stockholm University in Sweden. Dr. Mahowald will construct and apply a coupled model for the sources, entrainment, atmospheric transport and deposition of atmospheric dust, driven by a combination of results from atmospheric general circulation and ecosystem models for the last glacial maximum. The concentrations of mineral dust in ice-cores exhibit large variations between glacial and interglacial periods with higher concentration occurring during glacial periods. Atmospheric dust may play an active role in the control of global climate change on the glacial-interglacial time scale. Such control can be brought about by the scattering of solar radiation back to space, by altering nutrient balances in the ocean, and by lowering the albedo of snow and ice surfaces. ***